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.

  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
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    MongoDB Atlas runs apps anywhere

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  • 1
    Fuse for macOS
    Fuse for macOS is a macOS port of The Free Unix Spectrum Emulator (Fuse) (an emulator of the 1980s home computer and various clones).
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    Downloads: 114 This Week
    Last Update:
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  • 2
    TORCS - The Open Racing Car Simulator
    TORCS, The Open Racing Car Simulator is a highly portable multi platform car racing simulation. It is used as ordinary car racing game, as AI racing game and as research platform. It runs on Linux (x86, AMD64, ARM and PPC), FreeBSD, OpenSolaris and Windows.
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    Downloads: 441 This Week
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  • 3
    Commander Genius

    Commander Genius

    Commander Keen Interpreter

    This is a fork of CloneKeen. It fully interprets the classic dos games Commander Keen 1-6 including some fanmade mods and adds some nice twists like smoother gameplay, some special graphical effects and also music, which was missing in the first trilogy. Use our High Quality Pack and enjoy the Commander Keen series in a new way.
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    Downloads: 80 This Week
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  • 4
    mcrcon

    mcrcon

    Console based rcon client for minecraft servers.

    Mcrcon is IPv6 compliant minecraft rcon client with bukkit coloring support. It is well suited for remote administration and to be used as part of automated server maintenance scripts. - Does not trigger "IO: Broken pipe" or "IO: Connection reset" spam bug on server side. - Has workaround for server side bug (https://bugs.mojang.com/browse/MC-154617) ****************************************************************** Further development and new releases has moved to Github Github page: https://github.com/Tiiffi/mcrcon Official upstream: https://github.com/Tiiffi/mcrcon/releases https://api.github.com/repos/tiiffi/mcrcon/releases/latest ******************************************************************
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    Downloads: 121 This Week
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

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  • 5

    crrcsim

    Open source model airplane simulator

    CRRCSim is a model-airplane flight simulation program for Linux with ports to other platforms. Using CRRCSim you can learn how to fly model aircraft, test new aircraft designs, and improve your skills by practicing in the relative safety of your pc.
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    Downloads: 96 This Week
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  • 6

    Scorched 3D

    A simple turn-based artillery game and also a real-time strategy game.

    Scorched3D incorporates lively, fully destructible 3D landscapes that include animated jets, naval vessels, water and even birds, with detailed tanks and projectiles and stunning visual effects. A simple turn-based artillery game and also a real-time strategy game in which players can counter each others' weapons with other creative accessories, shields and tactics. Test your skill in timing, aiming and judgement of distance, move around on the landscape, or outsmart your opponent economically.
    Downloads: 61 This Week
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  • 7
    crouton

    crouton

    Chromium OS Universal Chroot Environment (EOL)

    crouton is an open-source set of scripts designed to enable Linux distributions to run alongside Chrome OS on Chromebooks by using a chroot environment that shares the same Linux kernel as the host system. Instead of dual-booting or virtualization, the project installs a Linux system inside a chroot, allowing users to switch quickly between Chrome OS and a full Linux desktop while maintaining performance and compatibility. This approach allows developers, system administrators, and power users to access traditional Linux tools and desktop environments on hardware originally intended to run only Chrome OS. Crouton supports multiple Linux distributions such as Ubuntu and Debian and allows the installation of different desktop environments including XFCE, KDE, and others. The environment integrates closely with Chrome OS, enabling shared files, hardware access, and keyboard shortcuts to switch between systems seamlessly.
    Downloads: 13 This Week
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  • 8
    Doomsday Engine

    Doomsday Engine

    DOOM / Heretic / Hexen source port with enhanced graphics and UI

    A portable game engine for classic first person shooters such as DOOM, Heretic and Hexen. Lets you enjoy the original games using modern technology, including high-resolution OpenGL graphics, 3D models, and dynamic lighting effects.
    Downloads: 64 This Week
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  • 9
    PrBoom, the purest Doom-Port? Aims to be the most stable Doom port with the highest compatibility to the major Doom versions. Highres software and nice OpenGL rendering. Full Boom and most if not all MBF features.
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    Downloads: 91 This Week
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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  • 10
    EdiZon

    EdiZon

    Homebrew save management, editing tool and memory trainer for Horizon

    A Homebrew save file dumper, injector and on-console editor for Horizon, the OS of the Nintendo Switch. Please note if you are using Atmosphere 0.10.0+, you must use the snapshot version of EdiZon. Older versions of EdiZon do not work on the latest Atmosphere. Extraction of game saves. Injection of extracted game saves (Your own and your friends save files). Uploading of savefiles directly. Batch extraction of all save files of all games on the system. Save file editing. Easy to use, scriptable and easily expandable on-console save editing. Lua and Python script support. Built-in save editor updater. On-the-fly memory editing. Cheat Engines like RAM editing. Freezing of values in RAM via Atmosphère's cheat module. Interface for loading, managing, and updating Atmosphère cheats. All packed into one easy-to-use and easy-to-install Homebrew.
    Downloads: 11 This Week
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  • 11
    Switch theme injector

    Switch theme injector

    Create custom themes for the Nintendo Switch

    The Switch theme injector project is split into three parts. Switch theme injector (Windows app): An app to create and edit custom themes. NXThemes installer: An homebrew app that runs on the switch itself and can be used to install and manage themes. Switch theme injector online (also called WebInjector): A port of the Windows injector as a web app, it lacks some features like custom applet icons and common.szs layouts support. The main objective is to develop a complete toolset to create and install custom themes on the switch. As the console os doesn't implement custom themes natively most of this is done by patching system SZS files to get the desired aspect. Unfortunately, SZS files from the switch os contain copyrighted data and can't be shared online that's why the nxtheme format has been developed, it contains only differential info and can be freely shared. Unless you're dealing with making your own patches and custom layouts you should only use nxtheme files.
    Downloads: 11 This Week
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  • 12
    GCompris : I got IT

    GCompris : I got IT

    Educational Software for children aged 2 to 10.

    GCompris is a high quality educational software suite comprising of numerous activities for children aged 2 to 10. Some of the activities are game oriented, but nonetheless still educational.
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    Downloads: 55 This Week
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  • 13
    gltron was inspired by the film tron - actually, more by all the games that where inspired by the film tron :-) It's a game for one to four players, the objective is not to drive into a wall.
    Downloads: 80 This Week
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  • 14
    Foobillard++
    An OpenGL Billard Game based on foobillard 3.0a with patches, new features (hud, jumpshots, correct detection of lost balls, more sound and graphics etc). Optimized for touch. New designed mouse / touch-control. On Facebook: www.facebook.com/Foobillardplus Some Videos: http://www.youtube.com/user/foobillardplus/videos
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    Downloads: 69 This Week
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  • 15
    libctru

    libctru

    Homebrew development library for Nintendo 3DS/Horizon OS user mode

    Library for writing user mode ARM11 code for the 3DS (CTR) This library aims to provide the foundations necessary to write 3DS Homebrew, and straightforwardly access the different functionalities provided by the 3DS operating system. It is not meant to provide higher-level functions; to put things in perspective, the purpose of libctru would be to sit between the OS and a possible port of SDL rather than replace it. libctru is just a library and needs a toolchain to function. devkitARM (created by devkitPro) is the officially supported ARM cross-compiling toolchain, which provides the framework necessary to supply a usable POSIX-like environment, with working C and C++ standard libraries; as well as the tools required to compile homebrew in the 3DSX format, and assemble GPU shaders. The use of other ARM toolchains is severely discouraged.
    Downloads: 10 This Week
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  • 16
    PCSX2

    PCSX2

    PlayStation 2 emulator for Windows and Linux

    PCSX2 is a PlayStation 2 emulator for Windows and Linux, started by the same team that brought you PCSX (a Sony PlayStation 1 emulator). Currently, it can emulate thousands of games at full speed
    Downloads: 94 This Week
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  • 17
    xu4 is a recreation of the classic computer RPG Ultima IV for modern operating systems.
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    Downloads: 80 This Week
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  • 18
    Open Sonic is a free open-source game based on the "Sonic the Hedgehog" universe. It introduces a different style of gameplay called cooperative play, in which it's possible to control 3 characters simultaneously. It works on Windows, Linux and MacOSX
    Downloads: 46 This Week
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  • 19
    OpenKore

    OpenKore

    A free/open source client and automation tool for Ragnarok Online

    OpenKore is a free and open source automation tool and custom client for the online game Ragnarok Online. It provides a flexible scripting system that allows users to automate gameplay, including navigation, combat, trading, and interaction with other players. The project supports plugins and modular extensions, enabling customization for different servers and play styles. OpenKore is cross-platform, running on Windows, Linux, and macOS, and is written primarily in Perl. With a strong community and extensive documentation, it is widely used by players and developers who want to explore automation, bot behavior, or server testing. The software emphasizes configurability, giving users control over character strategies and in-game decision-making.
    Downloads: 9 This Week
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  • 20
    Taisei Project

    Taisei Project

    A free and open-source Touhou Project fangame

    Taisei is a free, open-source clone of the Touhou Project bullet hell shoot-'em-up games, written entirely from scratch. It aims to be a faithful recreation of the classic Touhou gameplay experience, complete with original assets that capture the aesthetics and charm of the original series. Built using portable and modern tools, it runs across platforms including Linux, Windows, macOS, and even web browsers via WebGL. The game is designed with accessibility and modding in mind, making it an appealing entry point for both players and developers.
    Downloads: 9 This Week
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  • 21
    Allegro is a cross-platform library intended for use in computer games and other types of multimedia programming.
    Downloads: 38 This Week
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  • 22
    Project Apollo - NASSP
    Project Apollo - NASSP (also known as NASSP or NCPP) is an add-on for the Orbiter space flight simulator. Project Apollo simulates the Apollo missions to Earth orbit and the Moon and the planned post-Apollo missions that never flew.
    Downloads: 39 This Week
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  • 23
    Modified PrBoom port with uncapped framerate, variable gamespeed, re-record, walkcam, chasecam, full mouselook, fov and other features without loss of compatibility with original DOOM.
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    Downloads: 41 This Week
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  • 24
    Crossfire RPG game

    Crossfire RPG game

    Cooperative multiplayer graphical RPG and adventure game

    Crossfire is a free, open-source, cooperative multi-player RPG and adventure game. Since its initial release, Crossfire has grown to encompass over 150 monsters, 3000 areas to explore, an elaborate magic system, 14 races, 16 character classes, and many powerful artifacts scattered far and wide. Set in a fantastical medieval world, it blends the style of Gauntlet, NetHack, Moria, and Angband.
    Downloads: 64 This Week
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  • 25
    Zelda 64: Recompiled

    Zelda 64: Recompiled

    Static recompilation of Majora's Mask for PC

    Zelda 64: Recompiled is a specialized recompilation project built on top of N64Recomp, focused on reconstructing The Legend of Zelda: Ocarina of Time and related N64 titles into native, compilable code for modern systems. It takes original game binaries and translates them into structured C code that can be compiled and run without requiring an emulator, enabling more efficient execution and deeper access to the game’s internals. The project is designed to preserve gameplay accuracy while providing opportunities for enhancement, including graphical improvements, performance optimizations, and expanded modding capabilities. By leveraging the N64Recomp framework, it benefits from a standardized approach to static recompilation while tailoring the process to the specific architecture and behavior of Zelda titles.
    Downloads: 8 This Week
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