Open Source Games
Sort By:
Browse free open source Games and projects for Windows and Android below. Use the toggles on the left to filter open source Games by OS, license, language, programming language, and project status.
-
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
-
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
-
1
99 Nights in The Forest Script NO KEY
99 Nights in the Forest Script - Bring All, Auto Win, Auto Kill.
🛠️Download Free Scripts for 99 Nights in the Forest featuring ESP, Aimbot, Auto Tree Farm, Flying, and Instant Teleporting to all major items and enemies. Built with Rayfield UI. Perfect for farming, looting, and survival. Best Executor : https://sourceforge.net/projects/roblox-executor-wave/ ⚠️ Disclaimer Using scripts in Roblox can result in bans. Use at your own risk. 99 Nights in the Forest script no key, 99 Nights in the Forest codes, -
2
Delta Executor For PC
Use the Delta Executor APK with Roblox on a Windows PC.
This project allows the Delta Executor APK to be compatible with Roblox running natively on a Windows PC. Delta Executor For PC emulates the necessary environment to run the APK and integrates it with the Roblox process running on your Windows machine. If the Delta Executor APK is not found, the project will automatically download it. The "DeltaExecutorVector.svg" file is just the logo in vector format. How to run 1. It's good practice to always first read the source code. 2. Click the download button above. 3. Unzip and run the executable as administrator, choose a location, and click install. 4. Locate the application, and run it. 5. If you would prefer to use your own APK, place it in the same folder as the application. This APK will be used instead of downloading a new one. How to build 1. Download and install Rust (https://www.rust-lang.org/tools/install). 2. Download the source code. 3. In the project directory run "cargo run --release".">
-
3
Godot Engine
Godot is a powerful cross-platform game engine
Godot was created to provide a fully free, open source game development environment. To compile from source see the official docs here https://docs.godotengine.org/en/latest/development/compiling/ -
4
Stockfish
UCI chess engine
Stockfish is a free, powerful UCI chess engine derived from Glaurung 2.1. Stockfish is not a complete chess program and requires a UCI-compatible graphical user interface (GUI) (e.g. XBoard with PolyGlot, Scid, Cute Chess, eboard, Arena, Sigma Chess, Shredder, Chess Partner or Fritz) in order to be used comfortably. Read the documentation for your GUI of choice for information about how to use Stockfish with it. Stockfish is a 11-time winner of the Top Chess Engine Championship. Stockfish is open source (GPLv3 license). That means you can read the code, modify it, and contribute back. You can use Stockfish on your computer or on your iOS or Android device. So you can get world-class chess analysis, wherever you are. The Stockfish engine features two evaluation functions for chess, the classical evaluation based on handcrafted terms, and the NNUE evaluation based on efficiently updatable neural networks. -
Simple, Secure Domain RegistrationRegister or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
-
5
raylib
A simple and easy-to-use library to enjoy videogames programming
raylib is highly inspired by Borland BGI graphics lib and by XNA framework. Do you want to see all functions available in raylib? Check raylib cheatsheet. raylib is a programming library to enjoy videogames programming; no fancy interface, no visual helpers, no auto-debugging, just coding in the most pure spartan-programmers way. raylib has received several recognitions in the last years and many people have written about the library. Here there are the main awards received from Google and Epic Games. raylib supports multiple target platforms, it has been tested in the following platforms but, technically, any platform that supports C language and OpenGL graphics is valid for raylib or can be very easily ported to. raylib can be combined with several extra libraries for additional functionality, some of those libraries are already used internally while others are provided for user integration, most of these libraries are single-file header-only with no external dependencies. -
6
SysDVR
Stream switch games to your PC via USB or network
This is a sysmodule that allows capturing the running game output to a pc via USB or network connection. Stream and switch games to your PC via USB or network. Cross-platform, can stream to Windows, Mac and Linux. Stream via USB or Wifi. Video quality is fixed to 720p @ 30fps with h264 compression, this is a hardware limit. Audio quality is fixed to 16bit PCM @ 48kHz stereo. Not compressed. Very low latency with an optimal setup, most games are playable. -
7
Mindustry
An open-source sandbox tower defense game
Mindustry is a tower-defense sandbox factory game. Build supply chains of conveyor belts to fuel your turrets, produce materials for building, and defend your structures from waves of enemies. -
8
PPSSPP
A cross-platform PSP emulator
PPSSPP is an open source, cross-platform PSP emulator which allows you to play your PSP games on Android, Windows, Mac or Linux. With PPSSPP you can play your PSP games on your PC in full HD resolution, or play on your tablet for a big-screen mobile gaming experience. PPSSPP enhances the gaming experience in more ways than one. It even upscales some textures that would otherwise be too blurry due to the fact that they were originally made for the small screen. Even on modern Android phones and tablets you can enjoy double the original resolution. Get a whole new and better PSP gaming experience with PPSSPP now! -
9
99 Nights In The Forest Script / No Key
99 Nights Script Keyless: Auto Farm, Kill Aura, Teleport + more
Download the New Best Keyless Script for 99 Nights in The Forest Roblox — No Key System, Safe, and Updated for 2025! This script is completely keyless, providing a seamless and secure gaming experience. It has been updated for 2025, bringing improved features and better performance, making your gameplay smoother and more enjoyable. We’ve tested the script with Xeno Executor, and it works flawlessly. To make things even easier, we've included an injector that's perfectly compatible with it, specifically Xeno. Best of all, since this script doesn’t require a key, you can enjoy it without any hassle. Xeno : https://sourceforge.net/projects/xeno-executor-roblox/ PC requirements : Operating System: Windows 10 (64-bit) or Windows 11 Processor: Intel Core i3-2120 or equivalent Graphics: DirectX 10 compa Memory: 4 GB RAM Storage: At least 1 GB of free space Internet: 4–8 Mbit/s recommended Supported Browsers: Chrome, Firefox, Microsoft Edge -
Secure User Management, Made Simple | FronteggFrontegg powers modern businesses with a user management platform that’s fast to deploy and built to scale. Embed SSO, multi-tenancy, and a customer-facing admin portal using robust SDKs and APIs – no complex setup required. Designed for the Product-Led Growth era, it simplifies setup, secures your users, and frees your team to innovate. From startups to enterprises, Frontegg delivers enterprise-grade tools at zero cost to start. Kick off today.
-
10
libGDX
Desktop/Android/HTML5/iOS Java game development framework
libGDX is a cross-platform Java game development framework based on OpenGL (ES) that works on Windows, Linux, macOS, Android, your browser and iOS. libGDX provides a well-tried and robust environment for rapid prototyping and fast iterations. libGDX does not force a specific design or coding style on you; it rather gives you the freedom to create a game the way you prefer. Publish your games on Windows, macOS, Linux (including the RPi!), Android, iOS, and HTML5, all with the same code base. libGDX comes with batteries included. Write 2D or 3D games and let libGDX worry about low-level details. Heavy emphasis is put on avoiding garbage collection for ART/JavaScript by careful API design and the use of custom collections. libGDX is a well proven and reliable framework with a sound base and documentation. Furthermore, there are plenty of games built on top of libGDX, many of which are open source. -
11
99 Nights In The Forest Script / Keyless
99 Nights Script No Key: Kill Aura, Auto Combat, Auto Craft, & other
Download 99 Nights In The Forest Script | Keyless for free. 99 Nights Script Keyless : Kill Aura, Auto Farm, Auto Craft, & other. Transform into any creature, fly or noclip freely, see clearly with fullbright, teleport instantly, move faster with infinite jump, auto-gather and refill resources, and dominate battles with built-in killaura, defense boosts, and more. -
12
The Powder Toy
Sandbox video game with a powerful physics engine
Have you ever wanted to blow something up? Or maybe you always dreamt of operating an atomic power plant? Do you have a will to develop your own CPU? The Powder Toy lets you to do all of these, and even more! The Powder Toy is a free physics sandbox game, which simulates air pressure and velocity, heat, gravity and a countless number of interactions between different substances! The game provides you with various building materials, liquids, gases and electronic components which can be used to construct complex machines, guns, bombs, realistic terrains and almost anything else. You can then mine them and watch cool explosions, add intricate wirings, play with little stickmen or operate your machine. You can browse and play thousands of different saves made by the community or upload your own -
13
Delta Executor For PC No Key
Download Delta Roblox executor for keyless scripting. Latest Update
Delta Roblox Executor is a powerful, keyless script executor built for Roblox on PC. It allows users to safely and efficiently run custom Lua scripts in any Roblox game, unlocking new features, automation, and enhanced control over gameplay. Tested and benchmarked for top performance, Delta stands out from other free executors thanks to its clean UI, fast injection time, and support for most modern scripts. Following the discontinuation of our previous executor, Delta is now the official and recommended tool for all script users and developers in our community. Each version of Delta is directly published by trusted developers and scanned for safety before release. Our platform ensures a safe, secure, and ad-free download experience with no keys or verification links required. It's free, easy to use, and compatible with both beginners and advanced users. Whether you're automating farming in Blox Fruits or running GUIs in Pet Simulator X, Delta Executor gives you the performance">
-
14
RetroArch
RetroArch is a frontend for emulators, game engines and media players.
RetroArch is a way to run classic games on a wide assortment of Operating Systems and Consoles. Support the Developers on their Patron! https://www.patreon.com/libretro -
15
Irrlicht Engine
3D Engine c++
The Irrlicht Engine is an open source high performance realtime 3D engine written and usable in C++. It is completely cross-platform, using D3D, OpenGL and its own software renderers. -
16
MonoGame
One framework for creating powerful cross-platform games
One framework for creating powerful cross-platform games. The spiritual successor to XNA with thousands of titles shipped across desktop, mobile, and console platforms. MonoGame is a fully managed .NET open source game framework without any black boxes. Create, develop and distribute your games your way. By leveraging C# and other .NET languages on Microsoft and Mono platforms you can write modern, fast, and reliable game code. We currently support iOS, Android, MacOS, Linux, all Windows platforms, PS4, PSVita, Xbox One, and Switch with more platforms on the way. All the code is available to you ensuring you'll have the ability to make changes when you need to or even port to whole new platforms. With 1000s of shipped games we have built up a vibrant community of developers which use MonoGame for both fun and profit. -
17
GEDKeeper
GEDKeeper - opensource and crossplatform genealogy management program
GEDKeeper program is developed for work with personal genealogical database. The program is designed for extremely simple and intuitive interface. The program is very easy to install on the computer, fully supports the GEDCOM format, has no restrictions on the number of persons and generations, allows you to generate pedigrees, building several tree species, as well as print and save their images, provides fast navigation, filtering, searching and adding multimedia materials. In addition there is an output of geographic data on Google maps (© Google). The aim of the program is as quick and effective means of conducting personal genealogical database. We invite native speakers to improve the translation of the program on the Crowdin platform: https://crowdin.com/project/gedkeeper Project is published on GitHub, url: https://github.com/Serg-Norseman/GEDKeeper">
-
18
Kodi
Home theater software and entertainment hub for digital media
Kodi is an award-winning free and open source home theater/media center software and entertainment hub for digital media. With its beautiful interface and powerful skinning engine, it's available for Android, BSD, Linux, macOS, iOS and Windows. Got a smart TV? You ain't seen nothin’ yet! Kodi puts your smart TV to shame. Kodi runs on a huge range of devices and operating systems. Your music collection has never looked this good! Support for almost every format, playlists, party mixes and more. So much better than a pile of DVDs on a shelf. Kodi brings your movie collection to life with artwork, cast genres and more. Perfect for binge watching or the occasional catch up on your favourite show. Kodi keeps all your tv organised like nothing else. Kodi is the best way to share your photos on the biggest screen in the house or maybe just some wall candy with a personal slideshow. Kodi is software that is built and run for the community, by the community. -
19
Watt Toolkit
Open source cross-platform multi-purpose game toolkit
"Watt Toolkit" is an open-source cross-platform multi-purpose game toolkit, most of its features require you to download and install Steam to use it. Make the Steam community, Github, Google reCAPTCHA, Pixiv, Discord, Twitch and other domestic hard-to-access pages accessible properly. Some JS scripts are injected into web pages through an acceleration service that intercepts web requests, providing functionality similar to that of a web plugin. Functions similar to Steam community 302, using Titanium-Web-Proxy open source project for local anti-generation. Switch between Steam accounts that are already logged in on the current PC with one click, and manage features such as sorting your home shared library. Lets you manage your Steam game inventory directly, not only by downloading older Steam games but also by managing Steam game achievements directly, supporting unlocked achievements and unlocked achievements. -
20
Unciv
Open-source Android/Desktop remake of Civ V
Unciv is an open-source reimplementation of the game Civilization V in Java using LibGDX. It focuses on replicating the core gameplay mechanics in a lightweight, mobile- and desktop-friendly format, supporting both single-player and multiplayer modes. Unciv uses a minimalist art style and text-based UI to deliver a fast, turn-based strategy experience. -
21
MineTest
Open source voxel game engine with support for survival and crafting
An open source voxel game engine. -
22
Domination (Risk Board Game)
Domination is a game that is a bit like the board game Risk
Domination is a game that is a bit like the well known board game of Risk or RisiKo. It has many game options and includes many maps. Written in java it includes a map editor, a simple map format, multiplayer network play, single player, hotseat, 5 user interfaces and many more features, it works in all OSs that run java 1.5 or higher, iOS and Android. -
23
GemRB Game Engine
GemRB is a portable open-source implementation of the Infinity Engine
GemRB (Game engine made with pre-Rendered Background) is a portable open-source implementation of Bioware's Infinity Engine. It was written to support pseudo-3D role playing games based on the Dungeons & Dragons ruleset (Baldur's Gate and Icewind Dale series, Planescape: Torment). It should run on GNU/Linux, Microsoft Windows, OS X, possibly other UNIX derivatives and more. It is licensed under the GPL. -
24
VVVVVV
The source code to VVVVVV
From the creator of Super Hexagon, VVVVVV, the hit 2010 indie platformer, now available on android and iOS! Winner of Indiecade's 2010 award for Most Fun/Compelling Game. There are two versions of the VVVVVV source code available, the desktop version (based on the C++ port, and currently live on Steam), and the mobile version (based on a fork of the original flash source code, and currently live on iOS and Android). If you’re looking for the game’s text, that’s mainly (but not entirely) in the Scripts.cpp and TerminalScripts.cpp classes. These functions basically load data into a very simple script parser that controls cutscene logic. All the actual levels in the game are hardcoded in huge arrays generated with a map editor, which exports the levels in source code. Since the 2.0 update, the Windows, Mac and Linux versions of VVVVVV have featured a powerful and easy to use level editor. -
25
Delta Executor For PC No Key
Download Delta Roblox executor for keyless scripting. Latest Update
Delta Roblox Executor: The Ultimate Keyless Script Executor for Roblox on PC The Delta Roblox Executor is a powerful, user-friendly tool that allows Roblox players on PC to unlock new features, automate tasks, and take full control of their gameplay by running custom Lua scripts. With its keyless interface, Delta offers a seamless experience without the hassle of entering codes or complex setups. System Requirements for Roblox on PC: Before you start using Delta Executor, ensure that your PC meets the minimum system requirements: RAM: 1GB or more Operating System: Windows 7 or later Processor: Intel Celeron D 430 or higher Storage: 1GB or more Internet: Minimum 4G Graphics: AMD Radeon 9500 or higher If you want to try scripting in Roblox, Delta Roblox Executor is the perfect tool for safely running Lua scripts. With its user-friendly interface, automatic updates, and powerful features, it gives you more control over your games without any additional costs.