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