Browse free open source First Person Shooters and projects for Windows and ChromeOS below. Use the toggles on the left to filter open source First Person Shooters by OS, license, language, programming language, and project status.

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  • 1
    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: 123 This Week
    Last Update:
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  • 2
    OpenArena

    OpenArena

    Free and open source FPS based on Quake III Arena

    OpenArena aims to be a free, yet compatible clone of Quake III Arena. It also strives to add subtle enhancements such as new gametypes, playermodels and of course maps! Further improvements are incorporated by using the ioquake3 engine.
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    Downloads: 131 This Week
    Last Update:
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  • 3
    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.
    Downloads: 117 This Week
    Last Update:
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  • 4
    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: 35 This Week
    Last Update:
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  • 5
    Odamex

    Odamex

    Odamex is a free, cross-platform, modern client-server Doom engine

    Odamex is a free, cross-platform (Mac, Windows, Linux) modification of the Doom engine that allows players to easily join servers dedicated to playing Doom online. The goal of Odamex is to add enhancements to Doom while still retaining that "classic Doom feel" we all know and love about the original game.
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    Downloads: 54 This Week
    Last Update:
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  • 6
    A cross-platform Duke3D (Duke Nukem 3D) port which provides many new features for mod authors, including an enhanced scripting system and OpenGL renderer. Go to http://www.eduke32.com for downloads and http://bit.ly/dn_3d to get the game!
    Downloads: 5 This Week
    Last Update:
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  • 7
    World of Padman
    UPDATE(2016-03-17) This repository has moved to GitHub: https://github.com/worldofpadman/gamesource Full downloads, patches and sourcecode for the "World of Padman" game, also known as WoP ( http://worldofpadman.net/ ). WoP is based upon Quake 3 gamecode and uses a modfied version of the ioquake3 engine ( http://ioquake3.org/ ).
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    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: 13 This Week
    Last Update:
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  • 9
    OpenMoHAA
    OpenMoHAA is a game engine that is compatible with Medal of Honor: Allied Assault media and network protocol, based on the ioquake3 project.
    Downloads: 6 This Week
    Last Update:
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  • 10
    Smokin' Guns
    Smokin' Guns is a GPLv2 licensed first person Western style shooter based on the Quake 3 engine (Id Tech 3) developed by a loosely knit team of developers and artists. This project represents the game engine.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    A PHP 5 library for querying game servers. Currently supporting over 160 games, including source (half-life), unreal and quake engine games, ase & gamespy protocols. Newer games supported are Crysis & Call of Duty 5. Also supports Teamspeak 2.
    Downloads: 3 This Week
    Last Update:
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  • 12
    This tool generates bitmaps from system fonts which can be converted for use in Doom engines supporting zdoom-style "font lumps" by using a utility like "imagetool".
    Downloads: 6 This Week
    Last Update:
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  • 13

    Kambi VRML game engine

    Game engine supporting many 3D/2D formats and graphic effects

    This project has been renamed to "Castle Game Engine" and moved to: - Our website https://castle-engine.io/ - GitHub repo: https://github.com/castle-engine/castle-engine/ Cross-platform 3D and 2D game engine for Object Pascal. Rendering and processing of game assets in glTF, X3D, VRML, Collada, Spine and other formats. Many graphic effects including shadows, shaders, mirrors, screen effects. Animation, collision detection, 3D sound. Extensible system of 3D objects, with out-of-the-box levels, items, intelligent creatures and more. Desktop, mobile, web plugin. Also home of view3dscene - our full-featured VRML/X3D browser. The "Kambi VRML game engine" is renamed to "Castle Game Engine" (short name castle-engine). For commits and all current information see castle-engine project.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    FxStats is a log file anaylzer and statistics generator for first person shooters, using the Template Toolkit Perl module to generate output. It currently supports Medal of Honor: Allied Assault and Call of Duty.
    Downloads: 4 This Week
    Last Update:
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  • 15
    A Halflife / Halfelife 2 IRC match bot. Reports for various HL/HL2 game events. Also has Admin features. Simple to use with auto-setup. Written in Java so is suitable for many platforms.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 16
    All-Knowing Mind is a Java/SWT multi-language, OS-independent game server browser focusing on first person shooters similar to Yahoo's now defunct All-Seeing Eye.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    A quick-and-dirty maze game written in pure text-mode C with an available SDL frontend. Find the goal and make it to the exit.
    Downloads: 1 This Week
    Last Update:
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  • 18
    This game will be using the spineless python OpenGL Games Engine. We are currently helping with developing the engine.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    MVDSV (MultiView Demo Server) - most popular QuakeWorld Server in the world with it's ability to record every player's point of view in a server side demo. Includes: mvdsv, qwdtools (demo tools), qwdplayer (client - removed, use http://ezquake.sf.net).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Pathman
    Navigate a 3D maze while consuming energy pills. Avoid being captured by 4 quirky, colourful ghosts. Pathman is a 3D first/third person re-interpretation of Namco's popular 1980's arcade hit Pac-Man.
    Downloads: 1 This Week
    Last Update:
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  • 21
    QASE is a Java-based API designed to provide all the functionality needed to create game agents in Quake 2. Powerful enough to facilitate high-end research, it is also suitable for undergrad courses geared towards classic AI and agent-based systems.
    Downloads: 1 This Week
    Last Update:
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  • 22
    A Java based RCON administration tool for HL/HL2 based games. Features server list, server query, server settings dialog, rcon console, player management and HL/HL2 script support. (Current state supports CS:S only)
    Downloads: 1 This Week
    Last Update:
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  • 23
    The aim of REAL is to develop a close to real life tactical combat simulation with a high level of realizm based on 3D first person shooter. The first stage of the project will be focused on developing a small engine and level editor.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Custom-TF is a multiplayer Quake modification, allowing players to customize their role in the game to be whatever they want.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    Tanks is a simple old-fashion multiplayer 3D game, where player tries to find and destroy enemy tanks.
    Downloads: 0 This Week
    Last Update:
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