Browse free open source C First Person Shooters and projects below. Use the toggles on the left to filter open source C 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.
DOOM / Heretic / Hexen source port with enhanced graphics and UI
Free and open source FPS based on Quake III Arena
Historically accurate Doom source port
A fun realistic multiplayer free-and-open-source first-person-shooter!
Open source FPS/RTS Game