AU2013205700A1 - Method of gaming, a game controller and a gaming system - Google Patents

Abstract

Abstract A method of gaming in a gaming system comprising: generating a game outcome for a game round of a game 5 having a plurality of winning outcomes associated with respective ones of a plurality of designated initial prize amounts; evaluating the game outcome to determine whether to make an award for one or more winning outcomes such that if no award is made there is a non-winning outcome; 10 and making a contribution towards an increase of a prize amount associated with at least one of the winning outcomes in response to a non-winning game outcome, whereby an increased amount may be won in a subsequent game round. 43101451 (GHMatters) P76328.AU.1 2/05/13 bib to (D (0 D (D 0 (U 1 Of a) (00 Ino

Description

Title A METHOD OF GAMING, A GAME CONTROLLER AND A GAMING SYSTEM 5 Related Application This application is a divisional application of Australian application no. 2010212473, the disclosure of which is incorporated herein by reference. 10 Field The present invention relates to a method of gaming, a game controller and a gaming system. 15 Background Many gaming machines which implement wagering games employ set prizes (sometimes expressed as set amounts per credit 20 bet) for particular winning outcomes. For example, the winning outcomes may be particular hands in video poker or particular symbol combinations in a slot machine. Such prizes are often expressed in a prize or "pay" table advertised to the player as part of play of a game. 25 While such gaming systems provide players with enjoyment, a need exists for alternative gaming systems in order to maintain or increase player enjoyment. 30 Summary of the Invention In a first aspect, the invention provides method of gaming in a gaming system comprising: generating a game outcome for a game round of a game 35 having a plurality of winning outcomes associated with respective ones of a plurality of designated initial prize amounts; 43101451 (GHMatters) P76328.AU.1 2/05/13 - 2 evaluating the game outcome to determine whether to make an award for one or more winning outcomes such that if no award is made there is a non-winning outcome; making a contribution towards an increase of a prize 5 amount associated with at least one of the winning outcomes in response to a non-winning game outcome of a player, the contribution being adjustable such that an overall prize amount able to be won in a subsequent game round by a player corresponds with a predefined return to 10 player, wherein the contribution is a portion of a wagered credit; and displaying the increased prize amount to the player only when the contribution reaches the equivalent of a full wagerable credit. 15 In an embodiment, the method, comprises evaluating the game outcome based on a wager placed on the game round. In an embodiment, making a contribution towards an 20 increase of a prize amount comprises incrementing a prize pool. In an embodiment, increasing the prize amount when the prize pool is incremented by at least a designated amount. 25 In an embodiment, making a contribution towards an increase of a plurality of prize amounts associated with respective ones of the winning outcomes. 30 In an embodiment, the method comprises making an award of a current prize amount for each winning outcome for which an award is determined to be made. In an embodiment, the method comprises allocating a new 35 initial prize amount to each winning outcomes for which an award is made. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 3 In an embodiment, the new initial prize amount is always the same for a respective winning outcomes such that the prize amount is reset to the initial prize amount. 5 In an embodiment, the prize amounts are only available to a single player. In an embodiment, the game is a card game and the winning outcomes are winning hands of the card game. 10 In an embodiment, the game is a spinning reel game and the winning outcomes are winning symbol combinations. In an embodiment, the method comprises initiating a game round in response to the wager. 15 In an embodiment, the method comprises displaying the increased prize amount by dynamically updating a prize table to reflect the change to the prize amount and displaying the updated prize table on a display. 20 In a second aspect, the invention provides a game controller for a gaming system, comprising: an outcome generator arranged to generate a game outcome for a game round of a game having a plurality of 25 winning outcomes associated with respective ones of a plurality of designated initial prize amounts; an outcome evaluator arranged to evaluate the game outcome to determine whether to make an award for one or more winning outcomes such that if no award is made there 30 is a non-winning outcome; and a contribution controller arranged to make a contribution towards an increase of a prize amount associated with at least one of the winning outcomes in response to a non-winning game outcome of a player, the 35 contribution being adjustable such that an overall prize amount able to be won in a subsequent game round by a player corresponds with a predefined return to player, 43101451 (GHMatters) P76328.AU.1 2/05/13 - 4 wherein the contribution is a portion of a wagered credit, and wherein the game controller is arranged to cause display of the increased prize amount to the player only 5 when the contribution reaches the equivalent of a full wagerable credit. In an embodiment, the outcome evaluator evaluates the game outcome based on a wager placed on the game round. 10 In an embodiment, the game controller makes a contribution towards an increase of a prize amount by incrementing a prize pool. 15 In an embodiment, the game controller comprises a prize controller arranged to increase the prize amount when the prize pool is incremented by at least a designated amount. In an embodiment, the contribution controller is arranged 20 to make a contribution towards an increase of a plurality of prize amounts associated with respective ones of the winning outcomes. In an embodiment, the outcome evaluator is arranged to 25 make an award of a current prize amount for each winning outcome for which an award is determined to be made. In an embodiment, the prize controller is arranged to allocate a new initial prize amount to each winning 30 outcomes for which an award is made. In an embodiment, the new initial prize amount is always the same for a respective winning outcomes such that the prize amount is reset to the initial prize amount. 35 In an embodiment, the game controller is arranged such that the prize amounts are only available to a single 43101451 (GHMatters) P76328.AU.1 2/05/13 -5 player. In an embodiment, the game is a card game and the winning outcomes are winning hands of the card game. 5 In an embodiment, the game is a spinning reel game and the winning outcomes are winning symbol combinations. In an embodiment, the game controller is arranged to initiate a game round in response to the wager. 10 In an embodiment, the prize controller dynamically updates a prize table to reflect the change to the prize amount and the game controller is arranged to control a display to display the updated prize table. 15 In an embodiment, the game controller is implemented, at least in part, by a processor executing program code stored in a memory. 20 In a third aspect, the invention provides a gaming system comprising: one or more displays, at least one of the one or more displays being for displaying game outcomes; a player interface operable to initiate a game round 25 of a game having a plurality of winning outcomes associated with respective ones of a plurality of designated initial prize amounts; and a game controller arranged to: generate a game outcome; 30 evaluate the game outcome to determine whether to make an award for one or more winning outcomes such that if no award is made there is a non-winning outcome; cause a contribution to be made towards an increase of a prize amount associated with at least one of 35 the winning outcomes in response to a non-winning game outcome of a player, the contribution being adjustable such that an overall prize amount able to be won in a 43101451 (GHMatters) P76328.AU.1 2/05/13 - 6 subsequent game round by a player corresponds to a predefined return to player, wherein the contribution is a portion of a wagered credit; and cause display of the increased prize amount to the 5 player on at least one of the one or more displays only when the contribution reaches the equivalent of a full wagerable credit. In an embodiment, the game controller is arranged to 10 evaluate the game outcome based on a wager placed on the game round. In an embodiment, the game controller is arranged to make a contribution towards an increase of a prize amount by 15 incrementing a prize pool. In an embodiment, the game controller is arranged to increase the prize amount when the prize pool is incremented by at least a designated amount. 20 In an embodiment, the game controller is arranged to make a contribution towards an increase of a plurality of prize amounts associated with respective ones of the winning outcomes. 25 In an embodiment, the game controller is arranged to make an award of a current prize amount for each winning outcome for which an award is determined to be made. 30 In an embodiment, the game controller is arranged to allocate a new initial prize amount to each winning outcomes for which an award is made. In an embodiment, the new initial prize amount is always 35 the same for a respective winning outcomes such that the prize amount is reset to the initial prize amount. 43101451 (GHMatters) P76328.AU.1 2/05/13 In an embodiment, the game controller is arranged to make the prize amounts are only available to a single player. In an embodiment, the game is a card game and the winning outcomes are winning hands of the card game. 5 In an embodiment, the game is a spinning reel game and the winning outcomes are winning symbol combinations. In an embodiment, the game controller is arranged to 10 initiate a game round in response to the wager. In an embodiment, the game controller is arranged to dynamically update a prize table to reflect the change to the prize amount and displaying the updated prize table on 15 a at least one of the one or more displays. In a fourth aspect, the invention provides a gaming machine comprising: a display for displaying game outcomes; 20 a game play mechanism comprising one or more input devices operable by a player to initiate a game round of a game having a plurality of winning outcomes associated with respective ones of a plurality of designated initial prize amounts; and 25 a game controller comprising a processor and a memory storing program code which when executed in response to initiation of a game round, causes the game controller to: generate a game outcome for the game round; evaluate the game outcome based on award data 30 stored in the memory to determine whether to make an award to the player for one or more winning outcomes such that if no award is made there is a non-winning outcome; cause a contribution to be made towards an increase of a prize amount associated with at least one of 35 the winning outcomes in response to a non-winning game outcome of a player, the contribution being adjustable such that an overall prize amount able to be won in a 43101451 (GHMatters) P76328.AU.1 2/05/13 - 8 subsequent game round by a player corresponds with a predefined return to player, whereby an increased amount may be won in a subsequent game round, wherein the contribution is a portion of a wagered credit; and 5 cause display of the increased prize amount to the player on at least one of the one or more displays only when the contribution reaches the equivalent of a full wagerable credit. 10 In a fifth aspect, the invention provides computer program code which when executed implements the above method. In a sixth aspect, the invention provides a tangible computer readable medium comprising the above program 15 code. Brief Description of Drawings An exemplary embodiment of the invention will now be 20 described with reference to the accompanying drawings in which: Figure 1 is a block diagram of the core components of a gaming system; 25 Figure 2 is a perspective view of a stand alone gaming machine; Figure 3 is a block diagram of the functional components 30 of a gaming machine; Figure 4 is a schematic diagram of the functional components of a memory; 35 Figure 5 is a schematic diagram of a network gaming system; 43101451 (GHMatters) P76328.AU.1 2/05/13 - 9 Figure 6 is a further block diagram of a gaming system; and Figure 7 is a flow chart of an embodiment. 5 Detailed Description Referring to the drawings, there is shown a gaming system having a game controller arranged to implement a game 10 where for non-winning outcomes a contribution is made towards an increase of a prize amount of at least one prize such that the player's losing outcomes result in increased prizes over time. In advantageous embodiment, only a specific player can win the increased prizes. 15 General construction of gaming system The gaming system can take a number of different forms. In a first form, a stand alone gaming machine is provided 20 wherein all or most components required for implementing the game are present in a player operable gaming machine. In a second form, a distributed architecture is provided wherein some of the components required for implementing 25 the game are present in a player operable gaming machine and some of the components required for implementing the game are located remotely relative to the gaming machine. For example, a "thick client" architecture may be used wherein part of the game is executed on a player operable 30 gaming machine and part of the game is executed remotely, such as by a gaming server; or a "thin client" architecture may be used wherein most of the game is executed remotely such as by a gaming server and a player operable gaming machine is used only to display audible 35 and/or visible gaming information to the player and receive gaming inputs from the player. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 10 However, it will be understood that other arrangements are envisaged. For example, an architecture may be provided wherein a gaming machine is networked to a gaming server and the respective functions of the gaming machine and the 5 gaming server are selectively modifiable. For example, the gaming system may operate in stand alone gaming machine mode, "thick client" mode or "thin client" mode depending on the game being played, operating conditions, and so on. Other variations will be apparent to persons 10 skilled in the art. Irrespective of the form, the gaming system has several core components. At the broadest level, the core components are a player interface 50 and a game controller 15 60 as illustrated in Figure 1. The player interface is arranged to enable manual interaction between a player and the gaming system and for this purpose includes the input/output components required for the player to enter instructions to play the game and observe the game 20 outcomes. Components of the player interface may vary from embodiment to embodiment but will typically include a credit mechanism 52 to enable a player to input credits 25 and receive payouts, one or more displays 54, a game play mechanism 56 including one or more input devices that enable a player to input game play instructions (e.g. to place a wager), and one or more speakers 58. 30 The game controller 60 is in data communication with the player interface and typically includes a processor 62 that processes the game play instructions in accordance with game play rules and outputs game play outcomes to the display. Typically, the game play rules are stored as 35 program code in a memory 64 but can also be hardwired. Herein the term "processor" is used to refer generically to any device that can process game play instructions in 43101451 (GHMatters) P76328.AU.1 2/05/13 - 11 accordance with game play rules and may include: a microprocessor, microcontroller, programmable logic device or other computational device, a general purpose computer (e.g. a PC) or a server. 5 A gaming system in the form of a stand alone gaming machine 10 is illustrated in Figure 2. The gaming machine 10 includes a console 12 having a display 14 on which are displayed representations of a game 16 that can be played 10 by a player. A mid-trim 20 of the gaming machine 10 houses a bank of buttons 22 for enabling a player to interact with the gaming machine, in particular during game play. The mid-trim 20 also houses a credit input mechanism 24 which in this example includes a coin input 15 chute 24A and a bill collector 24B. Other credit input mechanisms may also be employed, for example, a card reader for reading a smart card, debit card or credit card. Other gaming machines may configure for ticket in such that they have a ticket reader for reading tickets 20 having a value and crediting the player based on the face value of the ticker. A player marketing module (not shown) having a reading device may also be provided for the purpose of reading a player tracking device, for example as part of a loyalty program. The player tracking 25 device may be in the form of a card, flash drive or any other portable storage medium capable of being read by the reading device. In some embodiments, the player marketing module may provide an additional credit mechanism, either by transferring credits to the gaming machine from credits 30 stored on the player tracking device or by transferring credits from a player account in data communication with the player marketing module. A top box 26 may carry artwork 28, including for example 35 pay tables and details of bonus awards and other information or images relating to the game. Further artwork and/or information may be provided on a front 43101451 (GHMatters) P76328.AU.1 2/05/13 - 12 panel 29 of the console 12. A coin tray 30 is mounted beneath the front panel 29 for dispensing cash payouts from the gaming machine 10. 5 The display 14 shown in Figure 2 is in the form of a video display unit, particularly a cathode ray tube screen device. Alternatively, the display 14 may be a liquid crystal display, plasma screen, any other suitable video display unit, or the visible portion of an 10 electromechanical device. The top box 26 may also include a display, for example a video display unit, which may be of the same type as the display 14, or of a different type. 15 Figure 3 shows a block diagram of operative components of a typical gaming machine which may be the same as or different to the gaming machine of Figure 2. The gaming machine 100 includes a game controller 101 20 having a processor 102 mounted on a circuit board. Instructions and data to control operation of the processor 102 are stored in a memory 103, which is in data communication with the processor 102. Typically, the gaming machine 100 will include both volatile and non 25 volatile memory and more than one of each type of memory, with such memories being collectively represented by the memory 103. The gaming machine has hardware meters 104 for purposes 30 including ensuring regulatory compliance and monitoring player credit, an input/output (I/O) interface 105 for communicating with peripheral devices of the gaming machine 100. The input/output interface 105 and/or the peripheral devices may be intelligent devices with their 35 own memory for storing associated instructions and data for use with the input/output interface or the peripheral devices. A random number generator module 113 generates 43101451 (GHMatters) P76328.AU.1 2/05/13 - 13 random numbers for use by the processor 102. Persons skilled in the art will appreciate that the reference to random numbers includes pseudo-random numbers. 5 In the example shown in Figure 3, a player interface 120 includes peripheral devices that communicate with the game controller 101 including one or more displays 106, a touch screen and/or buttons 107 (which provide a game play mechanism), a card and/or ticket reader 108, a printer 10 109, a bill acceptor and/or coin input mechanism 110 and a coin output mechanism 111. Additional hardware may be included as part of the gaming machine 100, or hardware may be omitted as required for the specific implementation. For example, while buttons or touch 15 screens are typically used in gaming machines to allow a player to place a wager and initiate a play of a game any input device that enables the player to input game play instructions may be used. For example, in some gaming machines a mechanical handle is uses to initiate a play of 20 the game. In addition, the gaming machine 100 may include a communications interface, for example a network card 112. The network card may, for example, send status 25 information, accounting information or other information to a bonus controller, central controller, server or database and receive data or commands from the bonus controller, central controller, server or database. In embodiments employing a player marketing module, 30 communications over a network may be via player marketing module - i.e. the player marketing module may be in data communication with one or more of the above devices and communicate with it on behalf of the gaming machine. 35 Figure 4 shows a block diagram of the main components of an exemplary memory 103. The memory 103 includes RAM 103A, EPROM 103B and a mass storage device 103C. The RAM 43101451 (GHMatters) P76328.AU.1 2/05/13 - 14 103A typically temporarily holds program files for execution by the processor 102 and related data. The EPROM 103B may be a boot ROM device and/or may contain some system or game related code. The mass storage device 5 103C is typically used to store game programs, the integrity of which may be verified and/or authenticated by the processor 102 using protected code from the EPROM 103B or elsewhere. 10 It is also possible for the operative components of the gaming machine 100 to be distributed, for example input/output devices 106,107,108,109,110,111 to be provided remotely from the game controller 101. 15 Figure 5 shows a gaming system 200 in accordance with an alternative embodiment. The gaming system 200 includes a network 201, which for example may be an Ethernet network. Gaming machines 202, shown arranged in three banks 203 of two gaming machines 202 in Figure 5, are connected to the 20 network 201. The gaming machines 202 provide a player operable interface and may be the same as the gaming machines 10,100 shown in Figures 2 and 3, or may have simplified functionality depending on the requirements for implementing game play. While banks 203 of two gaming 25 machines are illustrated in Figure 5, banks of one, three or more gaming machines are also envisaged. One or more displays 204 may also be connected to the network 201. For example, the displays 204 may be 30 associated with one or more banks 203 of gaming machines. The displays 204 may be used to display representations associated with game play on the gaming machines 202, and/or used to display other representations, for example promotional or informational material. 35 In a thick client embodiment, game server 205 implements part of the game played by a player using a gaming machine 43101451 (GHMatters) P76328.AU.1 2/05/13 - 15 202 and the gaming machine 202 implements part of the game. With this embodiment, as both the game server and the gaming device implement part of the game, they collectively provide a game controller. A database 5 management server 206 may manage storage of game programs and associated data for downloading or access by the gaming devices 202 in a database 206A. Typically, if the gaming system enables players to participate in a Jackpot game, a Jackpot server 207 will be provided to perform 10 accounting functions for the Jackpot game. A loyalty program server 212 may also be provided. In a thin client embodiment, game server 205 implements most or all of the game played by a player using a gaming 15 machine 202 and the gaming machine 202 essentially provides only the player interface. With this embodiment, the game server 205 provides the game controller. The gaming machine will receive player instructions, pass these to the game server which will process them and 20 return game play outcomes to the gaming machine for display. In a thin client embodiment, the gaming machines could be computer terminals, e.g. PCs running software that provides a player interface operable using standard computer input and output components. Other client/server 25 configurations are possible, and further details of a client/server architecture can be found in WO 2006/052213 and PCT/SE2006/000559, the disclosures of which are incorporated herein by reference. 30 Servers are also typically provided to assist in the administration of the gaming network 200, including for example a gaming floor management server 208, and a licensing server 209 to monitor the use of licenses relating to particular games. An administrator terminal 35 210 is provided to allow an administrator to run the network 201 and the devices connected to the network. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 16 The gaming system 200 may communicate with other gaming systems, other local networks, for example a corporate network, and/or a wide area network such as the Internet, for example through a firewall 211. 5 Persons skilled in the art will appreciate that in accordance with known techniques, functionality at the server side of the network may be distributed over a plurality of different computers. For example, elements 10 may be run as a single "engine" on one server or a separate server may be provided. For example, the game server 205 could run a random generator engine. Alternatively, a separate random number generator server could be provided. Further, persons skilled in the art 15 will appreciate that a plurality of game servers could be provided to run different games or a single game server may run a plurality of different games as required by the terminals. 20 Further detail of gaming system The game implemented with the gaming system can take a number of different forms, for example, card games such as poker, spinning reel game, dice games or ball games. 25 Herein the gaming system is described predominantly in relation to a video poker card game, however, description is also provided of how the gaming system can provide a spinning reel game in order to provide an indication of how a skilled person can modify the gaming system to 30 accommodate other games. Persons skilled in the art will appreciate that other card games can also be employed. The player operates the game play mechanism 56 to place a wager which is deducted from the credit meter stored as 35 meter data 644 in memory 64 and from which their entitlement to a win or wins in the game can be determined. The win entitlement which will be evaluated 43101451 (GHMatters) P76328.AU.1 2/05/13 - 17 for this play of the game. Placing the wager, or other operation of the game play mechanism 56 (such as pressing a spin or deal button in a spinning reel or card game), initiates a play of the game. Persons skilled in the art 5 will appreciate that a player's win entitlement will vary from game to game dependent on player selections and the type of game. In one example of video poker, the player places a wager 10 and is dealt five cards selected by the game controller of the gaming system from a standard 52-card pack. The wager can be a base amount or a multiple of the base amount, accordingly the extent of the variation of the win entitlement is the amount wagered which controls how many 15 multiple of the prize amount in the pay table the player is entitled to win. It will be appreciated that in some embodiments, only limited wager amounts or a single wager amount may be available. The player has one opportunity to discard any number of unwanted cards, and is dealt an 20 equal number of replacement cards from the deck. Typically, the player indicates which cards they want to keep by pressing a hold button associated with the cards to be kept, with the other cards discarded and replaced. If after any re-deal, the player then has a hand which is 25 in a prize table, the game controller then pays the player according to according to the specific hand. If the player's final hand is not in the pay table, the wager is lost. 30 The pay table includes a plurality of winning outcomes and may start, for example, with a pair of jacks or better, but the payouts may vary from game to game. The top payout is typically reserved for a royal straight flush. 35 In spinning reel games, typical winning outcomes are winning combinations of symbols specified in a pay table. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 18 In most spinning reel games, it is typical for the player's entitlement to be affected not only by the amount they wager but also selections they make (i.e. the nature of the wager) such that a winning outcome will often not 5 only need to occur but coincide with a player selection. For example, a player's win entitlement may be based on how many lines they play in each game - e.g. a minimum of one line up to the maximum number of lines allowed by the game (noting that not all permutations of win lines may be 10 available for selection). That is, a winning outcome will need to occur on a line played by the player for the player to receive the award. In many spinning reel games, the player's win entitlement 15 is not strictly limited to the lines they have selected, for example, "scatter" pays are awarded independently of a players selection of pay lines and are an inherent part of the win entitlement. 20 Persons skilled in the art, will appreciate that in other embodiments, the player may obtain a win entitlement by selecting a number of reels to play. Such games are marketed under the trade name "Reel Power" by Aristocrat Leisure Industries Pty Ltd. The selection of the reel 25 means that each displayed symbol of the reel can be substituted for a symbol at one or more designated display positions. In other words, all symbols displayed at symbol display positions corresponding to a selected reel can be used to form symbol combinations with symbols displayed at 30 a designated, symbol display positions of the other reels. For example, if there are five reels and three symbol display positions for each reel such that the symbol display positions comprise three rows of five symbol display positions, the symbols displayed in the centre row 35 are used for non-selected reels. As a result, the total number of ways to win is determined by multiplying the number of active display positions of each reels, the 43101451 (GHMatters) P76328.AU.1 2/05/13 - 19 active display positions being all display positions of each selected reel and the designated display position of the non-selected reels. As a result for five reels and fifteen display positions there are 243 ways to win. 5 In Figure 6, the processor 62 of game controller 60 is shown implementing a number of modules based on program code and data stored in memory 64. Persons skilled in the art will appreciate that various of the modules could be 10 implemented in some other way, for example by a dedicated circuit. These modules include the outcome generator 622 which operates in response to the player's operation of game 15 play mechanism 56. The player also initiate a play of the game and generates a game outcome for a game round of the game. The game outcome will then be evaluated by award evaluator 623. In a video poker game, the first part of forming the game outcome is to select an initial five 20 cards from a pack of 52 cards stored as part of game rule data 641. The cards are selected at random from the pack by outcome generator 622 using random number generator 621. The selected cards are advised to the display controller 624 which causes them to be displayed on 25 display 54 so the player can see them. The player then operates the game play mechanism 56 to select which cards are to be held and which are discarded. Any discarded cards are replaced by the outcome generator 622 randomly selecting cards from the remaining 47 cards in the deck. 30 These are then displayed to the player on display 54 by display controller 626. The outcome evaluator 623 compares the displayed cards to a prize table 643 to determine whether there is a winning 35 outcome. If there is a winning outcome, the outcome evaluator 623 awards the prize by updating the win meter stored as part of meter data 643. Assuming there is no 43101451 (GHMatters) P76328.AU.1 2/05/13 - 20 gamble function, or this is not activated by the player, the amount won is then transferred to the credit meter. In this gaming system, when there is not a win (a "non 5 winning outcome"), contribution controller 624 causes a portion of the amount wagered to be added to a prize pool stored as prize pool data 642, for example 1% of the amount wagered. Contributions are not made when there is a winning outcome. Prize pool and prize table controller 625 10 monitors the prize pool and determines when the prize pool has reached a designated value designed around a measure of when the prize pool grown sufficiently to cover an increase to a prize amount for one or more of the prizes in the prize table. The prize pool and prize table 15 controller 625 then dynamically updates the prize table 643. This update may be advised to the player on the display 54 and/or the player may be able to access the prize table at a time of the player's choosing by operating the player interface 50. The number and nature 20 of the prizes which are updated will depend on the implementation. For example, only one prize may be updated, all prizes may be updated, or a subset of prizes are updated. The size and conditions for the updates to prize amounts are chosen by the game designer to achieve a 25 desired return to player. For example, if the return to player is 95% and the odds of particular game outcomes will result in a return to player of 90% based on the initial prize amounts, then a further 5% needs to be returned by appropriate increases to prize amounts during 30 play. Persons skilled in the art will appreciate that there may be separate prize pools for each award which is to be increased and the prize pool and prize table controller 35 625 may monitor each pool and increment the prize when a minimum prize display value is one. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 21 When a prize that has been incremented is won, prize pool and prize table controller 625, sets a new prize amount which may be the same, lower or higher than the initial amount, for example by calculating a new amount based on 5 the current prize pool or returning it to a designated initial value. In a spinning reel game, the gaming system can implement the invention in analogous manner with the outcome 10 generator selecting symbols for display from a plurality of symbol sets corresponding to respective ones of a plurality of spinning reels. The symbol sets can specify a sequence of symbols for each reel such that the outcome generator can select all of the symbols by selecting a 15 stopping position in the sequence. The displayed symbols on active win lines or the like are then evaluated to determine whether they correspond to a symbol combinations in the pay table. Winning and non-winning outcomes are treated in the same manner describe above. 20 The method 700 is summarised in Figure 7 and involves initiating 710 a game round, generating 720 a game outcome, and evaluating 730 the game outcome. It is then determined 740 whether or not the game outcome was a 25 winning outcome. For winning outcomes, prizes are awarded 750 and reset 760 (if necessary). For non-winning outcomes, the prize pool is increased 770 and it is determined 780 whether to increased the prize amount. When the prize amount is to be increased, the method involves 30 dynamically updating the pay table to show the relevant updated amount. Examples 35 Example 1 - Spinning reel game, incrementing a prize pool on every game, but only displaying the increment when minimums are achieved. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 22 In this game, 1% of all monies bet are accrued to a prize pool. The prize pool is allocated to some of the advertised prizes. The amount allocated to the prizes is 5 different for each prize. E.g. 5 Aces is increased by 30% of the prize pool (i.e. 0.3% of turnover), 5 Kings and 5 queens are each increased by 20% of the prize pool (ie 0.4% of turnover) and 5 jacks, 10 and 9 are each increased by 10% (i.e. 0.3% of turnover). The increment is 10 shown to the player on a dynamically changing prize screen whenever the increment amount reaches the equivalent of a full credit value Spin 1 15 Player is playing a spinning reel game. Each credit is worth 5c. The player is playing 5 lines of a maximum possible 20 lines and betting 1 credit per play from a maximum possible 10 credits per play. Total bet is 5 20 credits = 25c. The prize pool is incremented by .25 cents. This is allocated as 25 .075 cents to 5*Aces, .05 cents to 5* Kings, .05 cents to 5* Queens, .025 cents to 5* Jacks, .025 cents to 5*10 and 30 .025 cents to 5*9. The accumulated prize pool for each prize now stands at 5*Aces is 5.25 cents 5* Kings is 4.05 cents 35 5* Queens is 5.05 cents 5* Jacks is 2.025 cents 5*10 is 1.025 cents 43101451 (GHMatters) P76328.AU.1 2/05/13 - 23 5*9 is 2.05 cents The outcome is a win on line 3 for 2*9 which is not an incrementing prize - player is paid a prize and advertised 5 prizes remain constant Spin 2 Betting as per spin 1 and the accumulated prize pool now 10 stands at 5*Aces is 5.325 cents 5* Kings is 4.10 cents 5* Queens is 5.10 cents 15 5* Jacks is 2.05 cents 5*10 is 1.05 cents 5*9 is 2.075 cents the outcome is no win on any lines - player is paid 0 20 credits, and the prize for 5* Aces is now incremented by 1 credit and the prize for 5* Queens is incremented by 1 credit and the prize pools are reduced for queens and aces Spin 3 25 Betting as per spin 1 and the accumulated prize pool now stands at 5*Aces is 0.4 cents 30 5* Kings is 4.15 cents 5* Queens is 0.15 cents 5* Jacks is 2.075 cents 5*10 is 1.075 cents 5*9 is 2.1 cents 35 The outcome is a win on line 1 of 5* queens. Player is paid the advertised prize for 5* queens which is the 43101451 (GHMatters) P76328.AU.1 2/05/13 - 24 standard prize plus the accumulated prize pool which has been added to the standard prize. The prize for 5 * Queens now returns to the standard value but the accumulated prize pool for queens remains at 0.15cents. 5 Example 2 - Spinning reel game, incrementing a prize pool for each non-winning line Similar to the above example, however the prize pool is 10 incremented for each non-winning line. The player is playing 5 lines at 1 credit per line on 5c = 1 credit. Total bet is 25cents. Prize pool is allocated to only one prize namely 5*Aces. 15 Spin 1 The outcome is a win on line 3 for 2*9 which is not an incrementing prize. The player is paid a prize. Lines 1, 20 2, 4 and 5 had non-wins, so the prize pool is incremented by .01% of the bet on lines 1, 2, 4 and 5, so prize pool is incremented by .01% of 20c = .2 cents. Prize pool for 5* Aces increments to 5.1 cents which is 1 25 credit plus 0.1 cent. Because there is a non-win on lines 1, 2, 4 and 5, the prize for 5* Aces is increased by 1 credit. Further aspects of the method will be apparent from the 30 above description of the system. It will be appreciated that at least part of the method will be implemented digitally by a processor. Persons skilled in the art will also appreciate that the method could be embodied in program code. The program code could be supplied in a 35 number of ways, for example on a tangible computer readable storage medium, such as a disc or a memory (for example, that could replace part of memory 103) or as a 43101451 (GHMatters) P76328.AU.1 2/05/13 - 25 data signal (for example, by transmitting it from a server). Persons skilled in the art, will appreciate that program code provides a series of instructions executable by the processor. 5 It will be understood to persons skilled in the art of the invention that many modifications may be made without departing from the spirit and scope of the invention, in particular it will be apparent that certain features of 10 embodiments of the invention can be employed to form further embodiments. It is to be understood that, if any prior art is referred to herein, such reference does not constitute an admission 15 that the prior art forms a part of the common general knowledge in the art in any country. In the claims which follow and in the preceding description of the invention, except where the context 20 requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or "comprising" is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further 25 features in various embodiments of the invention. 43101451 (GHMatters) P76328.AU.1 2/05/13

Claims (43)

1. A method of gaming in a gaming system comprising: generating a game outcome for a game round of a game 5 having a plurality of winning outcomes associated with respective ones of a plurality of designated initial prize amounts; evaluating the game outcome to determine whether to make an award for one or more winning outcomes such that 10 if no award is made there is a non-winning outcome; making a contribution towards an increase of a prize amount associated with at least one of the winning outcomes in response to a non-winning game outcome of a player, the contribution being adjustable such that an 15 overall prize amount able to be won in a subsequent game round by a player corresponds with a predefined return to player, wherein the contribution is a portion of a wagered credit; and displaying the increased prize amount to the player 20 only when the contribution reaches the equivalent of a full wagerable credit.

2. A method as claimed in claim 1, comprising evaluating the game outcome based on a wager placed on the game 25 round.

3. A method as claimed in claim 1 or claim 2, wherein making a contribution towards an increase of a prize amount comprises incrementing a prize pool. 30

4. A method as claimed in claim 3, comprising increasing the prize amount when the prize pool is incremented by at least a designated amount. 35

5. A method as claimed in any one of claims 1 to 4, comprising making a contribution towards an increase of a plurality of prize amounts associated with respective ones 43101451 (GHMatters) P76328.AU.1 2/05/13 - 27 of the winning outcomes.

6. A method as claimed in any one of claims 1 to 5, comprising making an award of a current prize amount for 5 each winning outcome for which an award is determined to be made.

7. A method as claimed in claim 6, comprising allocating a new initial prize amount to each winning outcomes for 10 which an award is made.

8. A method as claimed in claim 7, wherein the new initial prize amount is always the same for a respective winning outcomes such that the prize amount is reset to 15 the initial prize amount.

9. A method as claimed in any one of claims 1 to 8, wherein the prize amounts are only available to a single player. 20

10. A method as claimed in any one of claims 1 to 8, wherein the game is a card game and the winning outcomes are winning hands of the card game. 25

11. A method as claimed in any one of claims 1 to 8, wherein the game is a spinning reel game and the winning outcomes are winning symbol combinations.

12. A method as claimed in claim 2, comprising 30 initiating a game round in response to the wager.

13. A method as claimed in any one of claims 1 to 11, comprising displaying the increased prize amount by dynamically updating a prize table to reflect the change 35 to the prize amount and displaying the updated prize table on a display. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 28

14. A game controller for a gaming system, comprising: an outcome generator arranged to generate a game outcome for a game round of a game having a plurality of winning outcomes associated with respective ones of a 5 plurality of designated initial prize amounts; an outcome evaluator arranged to evaluate the game outcome to determine whether to make an award for one or more winning outcomes such that if no award is made there is a non-winning outcome; and 10 a contribution controller arranged to make a contribution towards an increase of a prize amount associated with at least one of the winning outcomes in response to a non-winning game outcome of a player, the contribution being adjustable such that an overall prize 15 amount able to be won in a subsequent game round by a player corresponds with a predefined return to player, wherein the contribution is a portion of a wagered credit, and wherein the game controller is arranged to cause 20 display of the increased prize amount to the player only when the contribution reaches the equivalent of a full wagerable credit.

15. A game controller as claimed in claim 14, wherein the 25 outcome evaluator evaluates the game outcome based on a wager placed on the game round.

16. A game controller as claimed in claim 14 or claim 15, wherein the game controller makes a contribution towards 30 an increase of a prize amount by incrementing a prize pool.

17. A game controller as claimed in claim 16, comprising a prize controller arranged to increase the prize amount 35 when the prize pool is incremented by at least a designated amount. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 29

18. A game controller as claimed in any one of claims 14 to 17, wherein the contribution controller is arranged to make a contribution towards an increase of a plurality of prize amounts associated with respective ones of the 5 winning outcomes.

19. A game controller as claimed in any one of claims 14 to 18, wherein the outcome evaluator is arranged to make an award of a current prize amount for each winning 10 outcome for which an award is determined to be made.

20. A game controller as claimed in claim 19 when dependent on claim 17, wherein the prize controller is arranged to allocate a new initial prize amount to each 15 winning outcome for which an award is made.

21. A game controller as claimed in claim 20, wherein the new initial prize amount is always the same for a respective winning outcomes such that the prize amount is 20 reset to the initial prize amount.

22. A game controller as claimed in any one of claims 14 to 21, arranged such that the prize amounts are only available to a single player. 25

23. A game controller as claimed in any one of claims 14 to 22, wherein the game is a card game and the winning outcomes are winning hands of the card game. 30

24. A game controller as claimed in any one of claims 14 to 22, wherein the game is a spinning reel game and the winning outcomes are winning symbol combinations.

25. A game controller as claimed in claim 14, arranged 35 to initiate a game round in response to the wager.

26. A game controller as claimed in claim 17, wherein the 43101451 (GHMatters) P76328.AU.1 2/05/13 - 30 prize controller dynamically updates a prize table to reflect the change to the prize amount and the game controller is arranged to control a display to display the updated prize table. 5

27. A game controller as claimed in any one of claims 14 to 26, implemented, at least in part, by a processor executing program code stored in a memory. 10

28. A gaming system comprising: one or more displays, at least one of the one or more displays being for displaying game outcomes; a player interface operable to initiate a game round of a game having a plurality of winning outcomes 15 associated with respective ones of a plurality of designated initial prize amounts; and a game controller arranged to: generate a game outcome; evaluate the game outcome to determine whether to 20 make an award for one or more winning outcomes such that if no award is made there is a non-winning outcome; cause a contribution to be made towards an increase of a prize amount associated with at least one of the winning outcomes in response to a non-winning game 25 outcome of a player, the contribution being adjustable such that an overall prize amount able to be won in a subsequent game round by a player corresponds to a predefined return to player, wherein the contribution is a portion of a wagered credit; and 30 cause display of the increased prize amount to the player on at least one of the one or more displays only when the contribution reaches the equivalent of a full wagerable credit. 35

29. A gaming system as claimed in claim 28, wherein the game controller is arranged to evaluate the game outcome based on a wager placed on the game round. 43101451 (GHMatters) P76328.AU.1 2/05/13 - 31

30. A gaming system as claimed in claim 28 or claim 29, wherein the game controller is arranged to make a contribution towards an increase of a prize amount by 5 incrementing a prize pool.

31. A gaming system as claimed in claim 30, wherein the game controller is arranged to increase the prize amount when the prize pool is incremented by at least a 10 designated amount.

32. A gaming system as claimed in any one of claims 28 to 31, wherein the game controller is arranged to make a contribution towards an increase of a plurality of prize 15 amounts associated with respective ones of the winning outcomes.

33. A gaming system as claimed in any one of claims 28 to 32, wherein the game controller is arranged to make an 20 award of a current prize amount for each winning outcome for which an award is determined to be made.

34. A gaming system as claimed in claim 33, wherein the game controller is arranged to allocate a new initial 25 prize amount to each winning outcomes for which an award is made.

35. A gaming system as claimed in claim 34, wherein the new initial prize amount is always the same for a 30 respective winning outcomes such that the prize amount is reset to the initial prize amount.

36. A gaming system as claimed in any one of claims 28 to 35, wherein the game controller is arranged to make the 35 prize amounts are only available to a single player.

37. A gaming system as claimed in any one of claims 28 to 43101451 (GHMatters) P76328.AU.1 2/05/13 - 32 36, wherein the game is a card game and the winning outcomes are winning hands of the card game.

38. A gaming system as claimed in any one of claims 28 to 5 36, wherein the game is a spinning reel game and the winning outcomes are winning symbol combinations.

39. A gaming system as claimed in claim 29, wherein the game controller is arranged to initiate a game round in 10 response to the wager.

40. A gaming system as claimed in any one of claims 28 to 39, wherein the game controller is arranged to dynamically update a prize table to reflect the change to the prize 15 amount and displaying the updated prize table on at least one of the one or more displays.

41. A gaming machine comprising: a display for displaying game outcomes; 20 a game play mechanism comprising one or more input devices operable by a player to initiate a game round of a game having a plurality of winning outcomes associated with respective ones of a plurality of designated initial prize amounts; and 25 a game controller comprising a processor and a memory storing program code which when executed in response to initiation of a game round, causes the game controller to: generate a game outcome for the game round; evaluate the game outcome based on award data 30 stored in the memory to determine whether to make an award to the player for one or more winning outcomes such that if no award is made there is a non-winning outcome; cause a contribution to be made towards an increase of a prize amount associated with at least one of 35 the winning outcomes in response to a non-winning game outcome of a player, the contribution being adjustable such that an overall prize amount able to be won in a 43101451 (GHMatters) P76328.AU.1 2/05/13 - 33 subsequent game round by a player corresponds with a predefined return to player, whereby an increased amount may be won in a subsequent game round, wherein the contribution is a portion of a wagered credit; and 5 cause display of the increased prize amount to the player on at least one of the one or more displays only when the contribution reaches the equivalent of a full wagerable credit. 10

42. Computer program code which when executed by a gaming system implements the method of any one of claims 1 to 13.

43. A tangible computer readable medium comprising program code which when executed by a gaming system 15 implements the method of any one of claims 1 to 13. 43101451 (GHMatters) P76328.AU.1 2/05/13