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.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

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  • MongoDB Atlas | Run databases anywhere Icon
    MongoDB Atlas | Run databases anywhere

    Ensure the availability of your data with coverage across AWS, Azure, and GCP on MongoDB Atlas—the multi-cloud database for every enterprise.

    MongoDB Atlas allows you to build and run modern applications across 125+ cloud regions, spanning AWS, Azure, and Google Cloud. Its multi-cloud clusters enable seamless data distribution and automated failover between cloud providers, ensuring high availability and flexibility without added complexity.
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  • 1
    TGM Gaming Macro

    TGM Gaming Macro

    Lets you have a macro mouse n keyboard functionally with ordinary one.

    Official TGM Gaming Macro website: https://trksyln.net/projects/TGM-Gaming-Macro-(TGMacro)-4 TGMacro BETA is OUT! https://gettgmacro.com TGM is a gaming macro that lets you have a macro mouse and keyboard functionally with ordinary one. You can create or record multiple macros and assign them to any key combinations to trigger and loop them when you need how you need. TGM is made for gamers but it's capable of so much more. So you can use it for daily tasks as well. For any question, bug report or feature request feel free to visit forum tab.
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    Downloads: 31,820 This Week
    Last Update:
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  • 2
    XOutput

    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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    Downloads: 6,012 This Week
    Last Update:
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  • 3
    Laft R6S Script

    Laft R6S Script

    Laft R6S Recoil Control, Improve Your Recoil Now!

    Laft Recoil v5.5 is a recoil control application designed for Rainbow Six Siege, allowing you to customize your recoil patterns. It offers precise X and Y value adjustments, supporting both whole numbers and decimal increments within a -100 to +100 range for fine-tuning. The application includes an improved 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 5.5 includes stability improvements, enhanced decimal value handling, and robust window management. Due to its nature of interacting with mouse input, antivirus software may flag it falsely, but it has been thoroughly scanned and is safe to use.
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    Downloads: 3,239 This Week
    Last Update:
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  • 4
    Steamless

    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.
    Downloads: 416 This Week
    Last Update:
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  • Picsart Enterprise Background Removal API for Stunning eCommerce Visuals Icon
    Picsart Enterprise Background Removal API for Stunning eCommerce Visuals

    Instantly remove the background from your images in just one click.

    With our Remove Background API tool, you can access the transformative capabilities of automation , which will allow you to turn any photo asset into compelling product imagery. With elevated visuals quality on your digital platforms, you can captivate your audience, and therefore achieve higher engagement and sales.
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  • 5
    tModLoader

    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.
    Downloads: 386 This Week
    Last Update:
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  • 6
    Virtual Controller

    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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    Downloads: 1,334 This Week
    Last Update:
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  • 7
    Valorant SkinChanger Free

    Valorant SkinChanger Free

    Best Free Valorant Skin Changer Unlock ALL And Easy Installation

    Download the best Cosmo skin changer for Valorant and access all skins in the game. Learn how to install, use and update the skin changer, and avoid getting blocked by game moderation. Step into the dynamic world of Cosmo Skin Changer, where your gaming experience transforms into something unique. Challenge yourself to explore a variety of exclusive skins, weapons, and accessories, unlocking new possibilities to personalize your gameplay style. Get ready for an exciting journey filled with customization options and discoveries, as you stand out as a true master of customization. Join us and embark on this revolutionary journey where your preferences become reality. Welcome to Valorant Skin Changer, where customization and creativity are at your fingertips! Windows: Supports Windows 10 / 11 (All Versions) Processors: Compatible with Intel / Amd (All Versions) Display Mode: Any Game Resolution Any BIOS settings Antivirus: Windows Defender off
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    Downloads: 684 This Week
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  • 8
    PKHeX

    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.
    Downloads: 82 This Week
    Last Update:
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  • 9

    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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    Downloads: 340 This Week
    Last Update:
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  • No-Nonsense Code-to-Cloud Security for Devs | Aikido Icon
    No-Nonsense Code-to-Cloud Security for Devs | Aikido

    Connect your GitHub, GitLab, Bitbucket, or Azure DevOps account to start scanning your repos for free.

    Aikido provides a unified security platform for developers, combining 12 powerful scans like SAST, DAST, and CSPM. AI-driven AutoFix and AutoTriage streamline vulnerability management, while runtime protection blocks attacks.
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  • 10
    XHEN MOD+

    XHEN MOD+

    PS3 XHEN-MOD+ v1.4.1

    Modificación de HEN 3.0.3 Contiene: HEN 3.0.3 Oficial -Traducción Español de la sección Red para (Hybrid Firmware Tools ) Herramientas de Firmware Hibrido -Activador de HEN personalizado en español + icono nuevo -Fix para instalar 29 tiendas al mismo tiempo integrado -Tema personalizado moderno que tiene que ser activado luego de instalar el XHEN MOD+ -Logo de inicio personalizado XHEN MOD+ | + Sonidos de PS4 -Imágenes para perfil de usuario personalizados -Contiene varios archivos personalizados extraídos de PS3 4K Pro con animaciones y efectos -Sonido de arranque de PS4 -Sonidos de GameBoot de PS4 -Sonidos de XMB de PS4 -Icono de PS4 Store -XHEN MOD+ Logotipo de Arranque -XHEN MOD+ Logotipo de GameBoot -XHEN MOD+ Textos -PSP Fondos de Onda -PSP Fondos de Colores -Botones Animados de Playstation -Menus Secundarios Animados -Icono de Reloj Animado -Menu de Opciones de Juego Animados -Indicador de Bateria de Color -Soporte 2160p en Salida de Video Y Mas...
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    Downloads: 407 This Week
    Last Update:
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  • 11
    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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    Downloads: 409 This Week
    Last Update:
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  • 12
    ArchiSteamFarm

    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.
    Downloads: 49 This Week
    Last Update:
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  • 13
    ModAssistant

    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!
    Downloads: 49 This Week
    Last Update:
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  • 14
    San Andreas Unity

    San Andreas Unity

    Open source reimplementation of GTA San Andreas game engine in Unity

    San Andreas Unity is an open-source reimplementation of GTA San Andreas game engine in Unity. This won't be a complete reimplementation, but the focus is on gameplay features, multiplayer, and creating a framework that will allow easy game extension and unlimited modding possibilities. When running for the first time, the game will ask you for a path to GTA installation. You need to own GTA in order to play it. The game is tested on Linux, Windows, Mac, and Android. It supports both Mono and IL2CPP scripting backends, so it can be built for any platform that Unity supports, provided that you can copy PC version of GTASA to target device. Game fully works in multiplayer. You can start the game as dedicated server, as a host (server & client at the same time), or you can connect to a server. This works on all supported platforms, which means you can start a host even on Android device.
    Downloads: 48 This Week
    Last Update:
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  • 15
    Watt Toolkit

    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.
    Downloads: 44 This Week
    Last Update:
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  • 16
    SaveParser

    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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    Downloads: 245 This Week
    Last Update:
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  • 17
    Impostor

    Impostor

    An open source reimplementation of the Among Us Server

    Impostor is an open source reimplementation of the Among Us Server, written in C#. It is among the first Among Us private servers with support for Steam, Itch, Android and iOS. It is a full replacement of the game's official server, so you can expect all of the game's features to be included, and the same fun playing experience. The difference of course is that you get to play on a private and secure server. Impostor has plugin support as well as a server-sided anticheat feature. You also have the option of playing on a server hosted by someone else.
    Downloads: 29 This Week
    Last Update:
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  • 18
    MonoGame

    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.
    Downloads: 29 This Week
    Last Update:
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  • 19
    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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    Downloads: 182 This Week
    Last Update:
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  • 20
    Pinta

    Pinta

    Simple GTK# Paint Program

    Pinta is a free, open-source program for drawing and image editing. Its goal is to provide users with a simple yet powerful way to draw and manipulate images on Linux, Mac, Windows, and BSD. Use easy drawing tools to draw freehand, lines, rectangles, ellipses, and more. Pinta includes over 35 adjustments and effects for tweaking your images. Use Pinta in your language. Pinta is at least partially translated into over 55 languages. Don't be afraid to experiment, Pinta tracks your full history so you can always undo. Use layers to help separate and group elements of your image for easy editing. Like docked windows? No problem. Floating windows? No problem. You can even mix and match. Original Pinta code is licensed under the MIT License, see license-mit.txt for the MIT License. Code from Paint.Net 3.36 is used under the MIT License and retains the original headers on source files.
    Downloads: 27 This Week
    Last Update:
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  • 21
    Thrive

    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.
    Downloads: 27 This Week
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  • 22
    DS3Windows

    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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    Downloads: 361 This Week
    Last Update:
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  • 23
    An open-source emulator for the 3DO Game Console.
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    Downloads: 145 This Week
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  • 24
    Playnite

    Playnite

    Video game library manager with support for wide range of libraries

    Link games from Steam, Epic, Origin, GOG, Battle.net, Ubisoft Connect and other services, including games that are not installed! Playnite supports a wide variety of console emulators. Playnite's look can be fully customized, from simple color changes to complete layout re-designs. Playnite's functionality can be extended with plugins and script extensions. Fullscreen mode with full controller support is available. Playnite tracks your time in-game (any game including emulated ones). Playnite's user interface is fast and light on resources, even with large libraries. Playnite can run from portable storage without the need of installing system dependencies. No Playnite features are locked behind a paywall and the complete source code is available under the MIT license. Playnite doesn't store any user information on remote servers. All information about your library is stored locally on your PC.
    Downloads: 21 This Week
    Last Update:
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  • 25
    TvGameLauncher

    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
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    Downloads: 99 This Week
    Last Update:
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