Browse free open source C Multiplayer Games and projects below. Use the toggles on the left to filter open source C Multiplayer Games by OS, license, language, programming language, and project status.

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  • 1
    BZFlag - Multiplayer 3D Tank Game
    OpenSource OpenGL Multiplayer Multiplatform Battle Zone capture the Flag. 3D first person tank game. Download the latest version at https://www.bzflag.org/downloads/ Development has moved to Github: https://github.com/BZFlag-Dev/bzflag (The SourceForge binary releases for Windows and macOS are very outdated. Please download the latest version from our website.)
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    Downloads: 3,904 This Week
    Last Update:
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  • 2
    0 A.D.

    0 A.D.

    0 A.D. is a free, open-source, cross-platform real-time strategy game.

    0 A.D. (pronounced "zero ey-dee") is a cross-platform real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of ancient civilizations, each depicted at their peak of economic growth and military prowess.
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    Downloads: 509 This Week
    Last Update:
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  • 3
    Nexuiz is a multiplayer first-person shooter. It is distributed under the GNU General Public License (GPLv2). Version 1.0 was released on May 31, 2005. The current version is, 2.5.2.
    Downloads: 111 This Week
    Last Update:
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  • 4
    Crossfire RPG game

    Crossfire RPG game

    Cooperative multiplayer graphical RPG and adventure game

    Crossfire is a free and open-source cooperative multiplayer graphical RPG and adventure game. Set in a medieval fantasy world, it combines real-time action with traditional role-playing mechanics inspired by games such as Gauntlet, NetHack, Moria, and Angband. Players can choose from 14 races and 16 character classes, develop skills and magic, worship gods, complete quests, discover powerful artifacts, and explore thousands of interconnected maps filled with monsters, dungeons, cities, and adventures. Crossfire has been continuously developed since 1992 and remains an actively maintained community project.
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    Downloads: 130 This Week
    Last Update:
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  • 5
    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: 66 This Week
    Last Update:
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  • 6
    Ur-Quan Masters HD

    Ur-Quan Masters HD

    Ur-Quan Masters High Definition

    Ur-Quan Masters HD Mod. An HD remake of Star Control 2. It's the full Ur-Quan Masters game but also featuring a high resolution mode, new features, & new artwork.
    Downloads: 47 This Week
    Last Update:
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  • 7
    mod_MumbleLink

    mod_MumbleLink

    Positional Audio Communication for Minecraft with Mumble

    A Mod so that Minecraft now natively supports Mumble's positional audio feature. This means: Directional and positionally attenuated VOIP in relation to the game world. Please visit the Forum for information about the newest Version! Main Forum-Thread: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1272675 TheSkorm's Fork on GitHub: https://github.com/TheSkorm/mod_mumblelink Mumble: http://mumble.sourceforge.net Donations are greatly appreciated: https://sourceforge.net/donate/?user_id=2370023
    Downloads: 46 This Week
    Last Update:
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  • 8
    AssaultCube Reloaded

    AssaultCube Reloaded

    A fun realistic multiplayer free-and-open-source first-person-shooter!

    ACR is a fun realistic multiplayer free-and-open-source first-person-shooter! This project has moved to GitHub. A mirror of releases is here.
    Downloads: 33 This Week
    Last Update:
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  • 9
    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: 30 This Week
    Last Update:
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    Paessler - Monitor Your Whole Network in Minutes

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  • 10
    SpaceZero

    SpaceZero

    A 2D Real Time Strategy space combat game.

    SpaceZero is a RTS 2D space combat, single and multiplayer (two players by now) net game. Your objective is to conquer all space. At the starting point the player owns a spaceship which has landed on a planet. Your first task is to acquire new spaceships and find new planets in the Galaxy.
    Downloads: 12 This Week
    Last Update:
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  • 11
    2D isometric MMORPG using the SDL framework. Daimonin offers a free public server at https://www.daimonin.org . A Unity client is also in active development.
    Downloads: 7 This Week
    Last Update:
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  • 12

    coldev

    C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT

    + C/C++ and PHP projects, Python and Others + 3D ENGINES + Videogames Projects based in Bennugd http://www.bennugd.org Web Page https://coldev.sourceforge.io/
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    Downloads: 20 This Week
    Last Update:
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  • 13
    MegaGlest

    MegaGlest

    Cross-platform real-time strategy game (3D)

    _________________________________________________________________________________________________________________________________________________________ PLEASE NOTE: Downloads and repositories have moved to GitHub at http://github.com/megaglest _________________________________________________________________________________________________________________________________________________________ MegaGlest is a free real-time strategy (RTS) game. It's fun to play in both single and multi-player modes (same or cross platform on LAN or Internet) and has lots of game content for endless playing. It forked from (no longer maintained) RTS classic Glest in 2010 and has since added several new features while improving on previously existing ones. MegaGlest is available for Linux, Windows, OS X and other systems. It also drives ot
    Downloads: 17 This Week
    Last Update:
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  • 14
    Lips of Suna

    Lips of Suna

    Tongue-in-cheek action RPG

    Lips of Suna is a tongue-in-cheek action RPG. It's an open world game that focuses on action heavy and versatile gameplay, dynamically changing game world and ease of customization and modding.
    Downloads: 3 This Week
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  • 15
    ChaosEsqueAnthology

    ChaosEsqueAnthology

    A free 3d game for PC that does not limit the player. Fight,Build,Gain

    (NOTE: Make sure to download Volume2 aswell!: http://sourceforge.net/p/chaosesqueanthologyvolume2/ ) 200+ weapons. Build-able enter-able buildings (Like an FPS RPG but with interiors) (Multi-tool/ Utili-tool). City generation (all buildings enterable). A 2 iso (6GB) exploration of what QuakeC can do. Over 100 maps included, along with map editor and sourcecode. Fully free and opensource: code and media. A modification of Xonotic which included extended weapons, maps, vehicles, buildable buildings, mounted weapons, spell casting, monsters, player characters, textures, and game mode (such as colorwar (think liquidwar)) To pick up items press F. To enter vehicles/mountedguns press F. To reload press R. To walk press W A S D (direction) To jump press SpaceBar Dev Enviorment (git repos) in tar.gz: https://sourceforge.net/projects/chaosesquedevenv/ DVD Case and DVD Labels and Extras (ISO signing info): https://sourceforge.net/projects/chaoseesquesupplemental/
    Downloads: 12 This Week
    Last Update:
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  • 16
    starrydb-publice

    starrydb-publice

    starrydb is game server engine

    starrydb is game server engine, As long as a few simple scripts can help you quickly build a game server. email:admin@starrydb.com
    Downloads: 10 This Week
    Last Update:
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  • 17
    QuakeWorld/2

    QuakeWorld/2

    QuakeWorld client ported to OS/2

    QuakeWorld/2 is a port of QuakeWorld & Quake to OS/2 2.0 The work is done with EMX, and the goal is to run under OS/2 2.0 along with the IBM TCP/IP that runs on OS/2 2.0 .
    Downloads: 5 This Week
    Last Update:
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  • 18
    Vanilla-oIT

    Vanilla-oIT

    An unmodified version of the MMORPG Impressive Title by KovuLKD

    A courtesy to the KITO community and all those nice people I got to know along the way. The title says it: This is a vanilla unmodified Impressive Title server hosted by me and released by the KITO community. It's intended mostly for testing and those rare few, who want nostalgia. Impressive Title was made open source in 2011 by KovuLKD: The original creator of the game. It was later maintained by the KITO community, which is still acting as a beacon for various oIT creators and server owners. - This server is ONLINE! - create your own TLK lion and hunt down prey while gathering items and more - you can use this client for testing and modify the media - you are able to spawn prey and items in campaign/offline mode - you can teleport to other maps in multiplayer and campaign Vanilla-oIT Project Website: https://minerva-services.net/software/vanilla-oit.php
    Downloads: 7 This Week
    Last Update:
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  • 19
    A recreation of the "The Elder Scrolls III: Morrowind" engine with plans to add support for multiplayer along with upgraded graphics, physics, and AI.
    Downloads: 1 This Week
    Last Update:
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  • 20
    TradeWars C

    TradeWars C

    A simple port of a Pascal version of TradeWars

    A "TradeWars" port of the old "TradeWars 200/QuixPlus" pascal into C. Currently targeting as many 16/32 environments as I can... Hopefully, soon multiuser!
    Downloads: 4 This Week
    Last Update:
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  • 21
    Galaxy Forces V2

    Galaxy Forces V2

    A 2D multiplayer space shooter game

    A 2D multiplayer space shooter, inspired by the Amiga classic Gravity Force. Play race, mission or dogfight. Single player, with friends or against AI. There are 50+ levels and a map-editor included. Global hi-score and achievements with replays on the website. The game plays on Windows, Linux and Mac.
    Downloads: 2 This Week
    Last Update:
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  • 22
    Vocaluxe
    Vocaluxe is an open source singing game inspired by SingStar™ and Ultrastar Deluxe. The code is hosted on github: https://github.com/Vocaluxe/Vocaluxe
    Downloads: 3 This Week
    Last Update:
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  • 23
    ElSword Archiver

    ElSword Archiver

    ElSword KOM Archiving Tool

    This tool is capable to extract and extract ElSword's (and Grand Chase's) KOM Mass Files. WARN: Dunno if it's a good idea to add the support of the newest crypto, so gimme time for that.
    Downloads: 1 This Week
    Last Update:
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  • 24
    Wolfpack Empire - BBS Door

    Wolfpack Empire - BBS Door

    The classic multiplayer strategy game for use as a BBS door

    The classic multiplayer strategy game for use as a BBS door. Points you to our official server. Get the GUI clients here: https://sourceforge.net/p/ptkei2ng/ and here: https://sourceforge.net/projects/winace/
    Downloads: 1 This Week
    Last Update:
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  • 25
    ASS is a project to implement an ELITE-style game with multiplayer capabilities, realistic and physically correct movement in space, trading, lots of ships, planets, guilds, fighting, exploring, aliens, evolving technology... Everything...
    Downloads: 0 This Week
    Last Update:
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