Browse free open source First Person Shooters and projects for Linux below. Use the toggles on the left to filter open source First Person Shooters by OS, license, language, programming language, and project status.
Free and open source FPS based on Quake III Arena
A modern, cross-platform Quake game engine based on FitzQuake.
A cross-platform port of Hexen II game.
AssaultCube is a FREE, multiplayer, first-person shooter game.
Odamex is a free, cross-platform, modern client-server Doom engine
Classic America's Army
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
DOOM / Heretic / Hexen source port with enhanced graphics and UI
Superproject containing build scripts and tools to download assets
FreeCS is a free-software reimplementation of Counter-Strike 1.5.
Battlefield bad company 2 Master server emulator + Server R34