Browse free open source First Person Shooters and projects for Mac 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
AssaultCube is a FREE, multiplayer, first-person shooter game.
Odamex is a free, cross-platform, modern client-server Doom engine
DOOM / Heretic / Hexen source port with enhanced graphics and UI
Superproject containing build scripts and tools to download assets
3D-Accelerated open-source DOOM engine
A fun realistic multiplayer free-and-open-source first-person-shooter!
3D FPS Digital Paintball 3 Multiplayer Online Game