Open Source C# Games
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Browse free open source C# Games and projects below. Use the toggles on the left to filter open source C# Games by OS, license, language, programming language, and project status.
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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.
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The All-in-One Commerce Platform for Businesses - ShopifyShopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
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TGM Gaming Macro
Lets you have a macro mouse n keyboard functionally with ordinary one.
Official TGMacro Websites: 🌐 https://trksyln.net/projects/TGM-Gaming-Macro-(TGMacro)-4 🌐 https://gettgmacro.com ⚡ TGMacro turns any ordinary mouse and keyboard into powerful macro devices. Easily create or record multiple macros, assign each to different keys or key combinations, and trigger or loop them whenever you need—whether it’s rapid-fire actions in games, complex multi-step workflows, or simple shortcuts that save you time every day. 🎮 Designed for gamers, but versatile enough for everyday tasks—TGMacro gives you full control and flexibility. 💡 Questions, bug reports, or feature requests? Older versions: https://trksyln.net/contact Current version: https://gettgmacro.com/contact Discord channel: https://discord.gg/gJ5ZNt4AAW https://gettgmacro.com/GetStarted">
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XOutput
DirectInput to XInput wrapper
If you have an older or not supported game controller (gamepad, wheel, joystick, etc.), but XBox 360 controllers are supported you can use this software and enjoy gaming with your controller. XOutput is a software that can convert DirectInput into XInput. DirectInput data is read and sent to a virtual XInput (Xbox 360 Controller) device. XInput is the new standard game controller input on windows, and DirectInput can no longer be used with Universal Windows Platform software, but with this tool you can use DirectInput devices as well. -
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Steamless
DRM remover of the SteamStub variants
Steamless is a DRM remover of the SteamStub variants. The goal of Steamless is to make a single solution for unpacking all Steam DRM-packed files. Steamless aims to support as many games as possible. Steamless aims to be a single solution for unpacking all variants of the SteamStub DRM, ranging from the very first version to the most recently released. Steamless will remove the SteamStub DRM protection layer that is applied via the DRM tool from the Steamworks SDK. Steamless will never remove the Steamworks API integration. (via steam_api.dll/steam_api64.dll) Steamless will never include or distribute any emulator for the Steamworks API integration. Steamless will never handle Valve's CEG (Custom Executable Generation) DRM that is used on some older games. Steamless will never promote, encourage, or assist with piracy. Steamless will never assist with bypassing anti-cheats or other protections in place by games. -
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tModLoader
A mod to make and play Terraria mods. Supports Terraria 1.4
tModLoader (TML) is an open-source, community-driven, modification and expansion of the Terraria game that makes it possible to make and play mods. TML expands your Terraria adventures with new content to explore created by the Terraria community! TML allows players to create and play Terraria mods and is designed in such a way so that you can play alone or together with friends, with one mod or with multiple mods, choose to play however you like! It is however required that all your friends also install TML if you want to play together; vanilla users can't play with TML users. First and foremost, TML is largely a community endeavor, built by the community; used by the community. Without all the contributions people in the community have made over the years, TML would not be in the state it is in. TML is a free-to-use modification of the game and will stay that way. -
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Virtual Controller
Program to control vJoy / vXbox Device via keyboard, mouse, joystick.
Description Program to control Virtual Input Devices via physic Input Devices. Supported Virtual Input Devices: vJoy (Virtual Generic Joystick) vXbox (Virtual Xbox 360 Gamepad) vKeyboard (Simulated Keyboard) vMouse (Simulated Mouse) Supported Physic Input Devices: Keyboard Mouse Joystick System Requirements Operating system: Windows XP, Windows 7, Windows 8, Windows 10 Additional software: NET Framework 4 Notes: For Windows 7, for the virtual Xbox 360 Gamepad to work correctly, you need to install the following components: Microsoft Xbox 360 Accessories, Microsoft Security Advisory 3033929 -
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PKHeX
Pokémon Save File Editor
Pokémon core series save editor, programmed in C#. Data is displayed in a view that can be edited and saved. The interface can be translated with resource/external text files so that different languages can be supported. Pokémon Showdown sets and QR codes can be imported/exported to assist in sharing. PKHeX expects to save files that are not encrypted with console-specific keys. Use a save data manager to import and export save data from the console (Checkpoint, save_manager, JKSM, or SaveDataFiler). We do not support or condone cheating at the expense of others. Do not use significantly hacked Pokémon in battle or in trades with those who are unaware hacked Pokémon are in use. PKHeX is a Windows Forms application that requires .NET Framework v4.6, with experimental support for .NET 6.0. The executable can be built with any compiler that supports C# 10. -
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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 -
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Valorant SkinChanger Free | Unlock Skins
Free Valorant SkinChanger to unlock skins
Valorant SkinChanger Free 2025 | Unlock All Skins, Levels, Titles & More – Cosmo Edition Unlock the full power of personalization in Valorant with the Cosmo SkinChanger, a free and safe tool that gives you instant access to every cosmetic in the game — skins, levels, sprays, finishers, and more. Designed for Windows 10 & 11, this 2025 build is updated, user-friendly, and crafted to keep you from getting blocked or flagged by moderation systems. Whether you're a casual player who wants to enjoy rare skin aesthetics or a streamer aiming for visual flair, this SkinChanger has everything you need to stand out — without spending a dime. 🔓 How It Works: Download the Cosmo Valorant SkinChanger from the link above Run the application as administrator Select the skins, sprays, or unlocks you want Click "Apply" — and launch Valorant All cosmetics are now active (only visible to you)">
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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. -
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.
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VGMToolbox is a C# based tool to assist VGM collectors and dumpers. It includes tools to extract, optimize, and build VGM formats as well as auditing and exploration utilities. [GBS, KSS, MDX, NSF(E), SID, S98, SPC, VGM, XA, XMA, xSF (PSF/PSF2/etc)]
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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. -
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Thrive
The main repository for the development of the evolution game Thrive
Thrive is a free, open-source game about the evolution of life. From the lowly tidepools of your home planet, you will rise to cosmic dominance. At every step, powerful creation tools and deep simulation mechanics will aid your species’ development. Revolutionary Games is the open-source team of dedicated volunteers aiming to make Thrive a reality. Our team seeks to accomplish two major goals: create engaging, compelling gameplay that respects our players’ intelligence, and remain as accurate as possible in our depiction of known scientific theory without compromising the former. Thrive will encapsulate the player in the wonders of science and the universe, allowing them to manipulate the virtual world around them with editors to modify technology, culture, organisms, and entire solar systems. Seven stages are planned, Microbe, Multicellular, Aware, Awakening, Society, Industrial and Space, though for the moment we’re only focusing on the first of these. -
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ModAssistant
Simple Beat Saber Mod Installer
ModAssistant is a simple PC mod installer for Beat Saber, using mods from BeatMods. Beat Saber is the popular VR rhythm game where players must slash the beats as they fly towards them to the beat of lively music. ModAssistant comes with a number of great features like dependency resolution, mod uninstallation, and a complex theming engine. It features light, dark, BSMG and light pink themes, and can even have your own custom theme! Have more fun playing Beat Saber by customizing your experience with ModAssistant! -
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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. -
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SimPE is a Tool for editing nearly all aspects of Sims 2, starting from simple Character changes (Skills, Names,Relationships...) up to the creation of new Objects and Color Options, containing Wrappers and Editor for nearly all Sims 2 Filetypes.
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Laft R6S Script
Laft R6S Recoil Control, Improve Your Recoil Now!
Laft Recoil v6.0 is a recoil control application designed for Laft Recoil, allowing you to control your recoil patterns. It offers precise X and Y value adjustments, supporting both whole numbers and decimal increments within a -100 to +100 range. The application includes a customizable preset saving system to store your settings and fully customizable keybinds for all major functions. It features a sleek dark interface designed for minimal distraction during gameplay. Version 6.0 includes stability improvements and enhanced decimal value handling. Due to its nature of interacting with mouse input, antivirus software may flag it falsely, however, all official releases are thoroughly scanned and guaranteed to be safe and free of malware. -
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ArchiSteamFarm
C# application with primary purpose of farming Steam cards
ASF is a C# application with the primary purpose of farming Steam cards from multiple accounts simultaneously. Unlike Idle Master which works only for one account at a given time, while requiring Steam client running in the background and launching additional processes imitating "game-playing" status, ASF doesn't require any Steam client running in the background, doesn't launch any additional processes and is made to handle unlimited Steam accounts at once. In addition to that, it's meant to be run on servers or other desktop-less machines and features full cross-OS support, which makes it possible to launch on any operating system with .NET Core runtime, such as Windows, Linux, and macOS. ASF is possible thanks to the gigantic amount of work done in the marvelous SteamKit2 library. Today, ASF is one of the most versatile Steam power tools, allowing you to make use of many features that were implemented over time. -
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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">
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DS3Windows
DS3Windows allows you to use a DualShock 3 Controller on your PC
DS3Window is an open-source program that will allow someone to get the experience of using a Playstation 3 DualShock Controller on a PC by emulating a Xbox 360 Controller. ⚠️Sometimes Windows will show unknown application error, click "More info" then click "Run anyway". -
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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. -
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SaveParser
Total War Savegame Editor / Parser
Savegame editor for Total War games savegames. Supports Total War "Warhammer 2", "Warhammer", "Attila", "Rome 2", "Shogun 2", "Napoleon" and "Empire" savegame files, Includes also some tools which could be needed for developer for savegame-based application. -
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Delta Force Cheat | Aimbot / Esp
Download Delta Force Cheats Hacks On Pc 2025
Delta Force Cheats allows users to adjust aim smoothing, FOV settings, recoil control, and visual filters for perfect precision and clarity. Download Delta Force Free Cheats Hack 2025 – Aimbot, ESP, Wallhack & HWID Spoofer Welcome to Zorn's Delta Force cheat repository—the perfect and easy solution for hacking Delta Force. The Delta Force Hack boasts the highest level of security, compatibility with all operating systems, and free premium features, such as unlocking all tools, macros, ESP, aimbot, speedhack, fly, and adding coins to your account. Delta Force Cheats is licensed under the MIT License. Please review the license before contributing or distributing. Abuse of this cheat may result in your account being banned! -
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A collection of tools related to creating and using mods in Fallout 3. From kaburke: Sorry for the lack of recent support. I haven't abandoned everyone, but I am actively working to create the best FOMM yet.
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TvGameLauncher
Launch apps/games on your HDMI-connected TV (or any other display)
Launch any file or game (including Steam games) on your TV (or any other connected display), making it the primary monitor, setting HDMI audio as the default playback device, darkening all other displays, and preventing computer sleep / hibernation / screen saver. All changes are reverted once the game exits. Utilizes NirCmd by NirSoft: http://www.nirsoft.net/utils/nircmd.html For a 5 minute tutorial see https://www.youtube.com/watch?v=z8N5RPswlH0">