Open source FPS/RTS Game
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Bots for the Half-Life mod Firearms 2.4 - 3.0
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Fast small FPS using JOGL and JOAL
Source port of the game "Mars - The Ultimate Fighter"
Source port of the game "In Pursuit of Greed"
Ms Dos port with slopes 3d floors true3d demo compatibility fast speed
Volume 2 of ChaosEsque Anthology
BDEF, WIE, MInfantry AI opponent
FreeCS is a free-software reimplementation of Counter-Strike 1.5.
FPS written in Unity and C#
A fun realistic multiplayer free-and-open-source first-person-shooter!
Automatically Re-roll Mayhem Modifiers in Borderlands3
3D-Accelerated open-source DOOM engine
A Java light, open source first person shooter,with editors.
Duke Nukem 3D Map Viewer
An open-source, multiplayer fps based on Cube 2 Engine.