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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.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB 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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  • Yeastar: Business Phone System and Unified Communications Icon
    Yeastar: Business Phone System and Unified Communications

    Go beyond just a PBX with all communications integrated as one.

    User-friendly, optimized, and scalable, the Yeastar P-Series Phone System redefines business connectivity by bringing together calling, meetings, omnichannel messaging, and integrations in one simple platform—removing the limitations of distance, platforms, and systems.
    Learn More
  • 1
    dopewars drug dealing game
    dopewars is a drug dealing game based on "Drug Wars" by John E. Dell. Originally set in New York, your aim is to deal in drugs and make your fortune... See the website at https://dopewars.sourceforge.io for more information.
    Downloads: 47 This Week
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  • 2
    Train Invaders

    Train Invaders

    Jupyter Notebook + Space Invaders

    Training a model can be a long long process. In the meantime, have a bit of fun with a competitive space invaders game. See if you can get your name to the top of the leaderboard.
    Downloads: 7 This Week
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  • 3
    Team based Aliens vs Humans FPS with buildable structures.
    Downloads: 68 This Week
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  • 4
    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: 34 This Week
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  • Activate Self-Service Analytics from Your Data Warehouse | Kubit Icon
    Activate Self-Service Analytics from Your Data Warehouse | Kubit

    Unlock the Power of Your Data

    Kubit delivers enterprise-grade customer journey analytics—directly from your existing data warehouse. Enable every team with self-service insights, driving faster, data-driven decisions with minimal engineering overhead or data movement.
    Learn More
  • 5
    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: 30 This Week
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  • 6

    Digital Modellbahn

    Digitale Modellbahnsteuerung

    Projekt Files für den Eigenbau von (Modellbahn) Elektronik. Hinweis: Die auf dieser Homepage vorgestellte Software, Schaltungen und Layouts können für den privaten Gebrauch frei genutzt werden, eine kommerzielle Verwertung bedarf einer schriftlichen Genehmigung
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    Downloads: 166 This Week
    Last Update:
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  • 7
    TinTin++ Mud Client

    TinTin++ Mud Client

    A MUD client for Android, iOS, Linux, Mac OS X and Windows

    TinTin++ is a console mud client for any type of text mud or bbs. The mud client's main assets are an easy to learn scripting language, triggers, automapping, and a split screen interface to separate mud output from client input. Installation instructions for Android, iOS, and several other operating systems are available on the website. https://tintin.mudhalla.net
    Downloads: 30 This Week
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  • 8
    3ds-examples

    3ds-examples

    Examples for 3DS using devkitARM, libctru, citro3d and citro2d

    Examples for 3DS using devkitARM, libctru, citro3d and citro2d.
    Downloads: 6 This Week
    Last Update:
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  • 9
    F·W·K

    F·W·K

    3D game engine/framework in C, with Luajit and Python bindings now

    3D game framework in C, with Luajit and Python bindings now.
    Downloads: 6 This Week
    Last Update:
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  • Powerfully Simple Remote Monitoring and Management Software Icon
    Powerfully Simple Remote Monitoring and Management Software

    NinjaRMM provides intuitive endpoint management software to managed service providers (MSPs) and IT professionals

    If you're looking to support your clients and manage IT more efficiently, turn to NinjaRMM. The world's first security centric remote monitoring and management (RMM) platform, NinjaRMM enables IT professionals to monitor and manage the entire IT stack with full automation all within a single pane of glass. The platform features search and connect through TeamViewer, antivirus integration, real-time alerts, managed patching, automation, software inventory, and reporting.
    Free Trial
  • 10
    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: 6 This Week
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  • 11
    OpenCity is another 3D city simulator. You can build residential, commercial and industrial zones then supply them with necessary goods and watch them grow up. Version 0.0.6stable is now available for download. Any feature request/bug report is welcome
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    Downloads: 43 This Week
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  • 12
    Enemy Territory: Legacy

    Enemy Territory: Legacy

    Based on the raedwulf-et project

    etlegacy-deprecated is the archived version of ET: Legacy, a community-driven project that maintains and modernizes Wolfenstein: Enemy Territory, the classic team-based WWII multiplayer shooter. This legacy repository contains older iterations of the codebase, which aimed to preserve the original gameplay while improving security, portability, and performance on modern systems. Though deprecated in favor of the active repository, it offers insight into early modernization efforts and is still useful for educational purposes or referencing historical development choices.
    Downloads: 5 This Week
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  • 13
    Pioneers

    Pioneers

    Pioneers - The Settlers of Catan

    Pioneers is an emulation of the board game The Settlers of Catan, which can be played over the internet.
    Downloads: 26 This Week
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  • 14
    LPub3D

    LPub3D

    LDraw™ editor for LEGO® style digital building instructions.

    LPub3D is an Open Source WYSIWYG editing application for creating LEGO® style digital building instructions. LPub3D is developed and maintained by Trevor SANDY. It uses the LDraw™ parts library, the most comprehensive library of digital Open Source LEGO® bricks available (www.ldraw.org/ ) and reads the LDraw LDR and MPD model file formats. LPub3D is available for free under the GNU Public License v3 and runs on Windows, Linux and macOS Operating Systems. LPub3D is also available as a Linux 'no-install', multi-platform AppImage. Portions of LPub3D are based on LPUB© 2007-2009 Kevin Clague, LeoCAD© 2025 Leonardo Zide, LDView© 2025 Travis Cobbs & Peter Bartfai and additional third party components. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. © 2015-2025 Trevor SANDY
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    Downloads: 26 This Week
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  • 15
    Egoboo

    Egoboo

    Free 3D Roguelike action RPG

    Egoboo is a working cool 3D dungeon crawling game in the spirit of nethack. Currently it is supported by Windows, Linux and Mac.
    Downloads: 28 This Week
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  • 16
    AdvanceMAME
    A MAME and MESS port with an advanced video support for Arcade Monitors, TVs, and PC Monitors. It also contains a bootable Linux LiveCD/USB, a frontend with animated MNG/MP3 snapshots, a rom manager, and recompression utilities for compressed files.
    Downloads: 22 This Week
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  • 17
    Atanks is a multi-platform Scorched Earth clone similar to the Worms series of games. Annihilate the other tanks to earn money, then spend it on bigger and better shields and weapons to wipe out the opposition.
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    Downloads: 87 This Week
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  • 18
    C-Dogs SDL

    C-Dogs SDL

    Classic overhead run-and-gun game

    C-Dogs SDL is an open-source, classic overhead run-and-gun game that offers both single-player and multiplayer modes. It features customizable campaigns, a variety of weapons, and supports modding, allowing players to create and share their own missions. The game has been updated to include modern features while retaining its retro charm.
    Downloads: 4 This Week
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  • 19
    Crown Engine

    Crown Engine

    The flexible game engine

    Crown is a general-purpose and data-driven game engine, written in orthodox C++ with a minimalistic and data-oriented design philosophy in mind. Every aspect of the game is controlled through text configuration files. Before shipping, configuration files are compiled to efficient platform-specific binary blobs. Data in memory is organized to achieve the maximum performance possible on every platform. Every game asset is hot-reloadable, code included. Evaluate modifications and adjustments on-the-fly without having to reboot the game every time. Runs and looks equally well both on Linux and on Windows. Designed to be as fail-safe as possible to never lose your work if crashes should occur. Engine plus tools amounts to less than 50K LOC. Written in simple 'C-style' C++. It is easy for anyone to understand and make modifications. All the code is released under the very permissive MIT license and can be downloaded via GitHub by anyone.
    Downloads: 4 This Week
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  • 20
    NX-Shell

    NX-Shell

    A multi-purpose file manager for the Nintendo Switch

    NX Shell is a multi-purpose file manager for the Nintendo Switch that aims towards handling various file types while keeping the basic necessities of a standard file manager. Initially, the project was inspired by LineageOS/CyanogenMod's file manager for android, and even had a similar design approach to that of the famous Android file manager. However, it has been re-written from scratch, now using more up to date tools and libraries.
    Downloads: 4 This Week
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  • 21
    Provenance

    Provenance

    An iOS & tvOS Frontend for Multiple Emulators

    Provenance is an iOS & tvOS frontend for various emulators, supporting multiple Atari, Bandai, NEC, Nintendo, Sega, SNK and Sony console systems. It offers smooth and accurate, full-speed emulation to give you an awesome and genuine playing experience. Provenance is built with a host of awesome features, such as save anywhere and battery saves, controller support, automatic ROM matching and ROM customizations, and many more. Provenance supports a great number of console systems, with more in the works. Start playing your favorite console games on iOS or tvOS now with Provenance!
    Downloads: 4 This Week
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  • 22
    MyMan is a video game for color and monochrome text terminals in the genre of Namco's Pac-Man.
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    Downloads: 106 This Week
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  • 23
    Game Editor
    Game Editor is the game design software that gives you the power to create the games of your dreams, and gives you the chance to get the source code of the game creator and develop 2D games for personal computers as well as mobile devices like iPhone
    Downloads: 25 This Week
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  • 24

    Dungeon Craft

    Updated emulator of Forgotten Realms: Unlimited Adventures

    Up to date code, including latest engine and editor releases: https://github.com/grannypron/uaf Dungeon Craft Community Forums: https://forums.goldbox.games/index.php#c8 Dungeon Craft is an adventure creator that emulates the Advanced Dungeons & Dragons Gold Box RPG's released by SSI. Initially designed to be a "more unlimited" version of the Forgotten Realms: Unlimited Adventures (FRUA) game editor and engine, it has far surpassed the capabilities of the old FRUA system. The editor is used to configure art, items, monsters, spells, special abilities, classes and races.. Each adventure is self-contained and doesn't require the editor to be played. The editor is extremely versatile and the databases are completely designer created allowing easy additions and modifications to spells, monsters, items, classes, races and special abilities, and are exportable to be easily shared with others or used in other designs.
    Downloads: 30 This Week
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  • 25
    FTE QuakeWorld
    FTE QuakeWorld is a QuakeWorld derivative which mainly focuses on modding and additional features for both users and servers. Supports NetQuake gamecode and protocol, Hexen 2/Quake 2/Quake 3 maps and models, many QuakeC builtin extensions, and more.
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    Downloads: 44 This Week
    Last Update:
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