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moved to Github: https://github.com/BZFlag-Dev/bzflag (The SourceForge binary releases for Windows and macOS are very outdated.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: 3,136 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.
    Downloads: 213 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.
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    Downloads: 122 This Week
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  • 4
    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.
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    Downloads: 77 This Week
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  • 5
    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: 49 This Week
    Last Update:
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  • 6
    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: 39 This Week
    Last Update:
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  • 7
    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: 27 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: 20 This Week
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  • 9
    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: 5 This Week
    Last Update:
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  • 10

    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: 8 This Week
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  • 11
    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: 6 This Week
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  • 12
    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: 1 This Week
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  • 13
    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
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  • 14
    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
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  • 15
    Dead Boys (a game)

    Dead Boys (a game)

    A 2d action shooter game. Split screen for up to 4 players.

    Downloads: 2 This Week
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  • 16
    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: 2 This Week
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  • 17
    Arkana - Fight To Survive (FTS)
    Arkana - Fight to survive (FTS) will be a 3D real time strategy game in the veins of Warcraft 3, AOE, EE, ... but with a twist: the focus is on online gaming and each player will have a hero which he carries from game to game.
    Downloads: 1 This Week
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  • 18

    Crossfire-Weather-Patch

    Crossfire RPG Game Weather Patch -- Now a branch on the official repo!

    This patch set has been migrated into a branch in the Crossfire RPG Game repository, where it will hopefully have more eyes on it and progress faster than the speed of me. See https://sourceforge.net/p/crossfire/crossfire-server/ci/weather/tree/ for the current server code, https://sourceforge.net/p/crossfire/crossfire-maps/ci/weather/tree/ for the map changes, and https://sourceforge.net/p/crossfire/crossfire-arch/ci/weather/tree/ for the archetype changes.
    Downloads: 1 This Week
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  • 19
    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: 1 This Week
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  • 20
    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
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  • 21

    Advanced Tactical Wasteland

    Advanced Wasteland mission using ACE for Arma II

    Advanced Tactical Wasteland is a mission for ArmA II that incorporates ACE mod into the 404games.co.uk Wasteland version. The main code development is being done on Github. https://github.com/KRDucky/Advanced-Tactical-Wasteland
    Downloads: 0 This Week
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  • 22

    Arena1

    A little Bomberman clone programmed in C using SDL

    Controls Player 1: Moving: Arrow Keys Place bomb: Return Controls Player 2: Moving: W, A, S, D Place bomb: Tab
    Downloads: 0 This Week
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  • 23
    Series of patches for the popular OpenTTD game! Check out their project at www.openttd.org
    Downloads: 0 This Week
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  • 24
    Blood Money 616

    Blood Money 616

    A Kingpin Mod - Blood Money 616

    A KINGPIN SERVER MODIFICATION Many Mods incorporated under one server roof. AUTOMATION - hypo_v8 / theghost / mrfredz ANTI-LAG MOD - hypo_v8 / theghost BLOODMONEY - hypo_v8 / theghost / mrfredz This project is just about taking KINGPIN one of the most fun 1st person shooters of all time and making it better than it use to be, maybe even making a few addons that will make the game even more fun for a while or as long as we can. 1999 the time KINGPIN was developed put this 1st person shooter ahead of everything on the shelf. It was the first game to have locational damage quarters. The 1st game to go too far! This is not a G rated game!
    Downloads: 0 This Week
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  • 25
    BrokenShield

    BrokenShield

    PvP, MUD RPG.

    Broken Shield is a PvP, medieval-style RPG powered by the Cube 2 Engine. Explore different worlds with other players and enter battlegrounds to complete certain objectives and win experience and level up.
    Downloads: 0 This Week
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