“Bombstrike: arcade shoot’em up on steroids. If you want intense shoot’em up action–did I say intense?–look no further: …Bombstrike: “The ultimate 3D helicopter action game.”” (The Independent Gaming Source)
A WW2 FPS 3D game where you as a saboteur are sent into German occupied Norway. Main mission: Blow up two canons. No linear missions, you can walk all over the place. You sneak and snipe in a winter landscape. It also has a fun arcade mode as bonus.
A 3D space shooter with mathematically generated fractal scenery and models
shoot up 3d ships and avoid hitting the pillars for points
Free and open source 3dshooter game
Duke Nukem 3D is a fantastic 3d shooter game
Orxonox tries to be the hottest 3D action shooter ever to exist.
Project Timeless is a 3D-Shooter created for the multi-player mode exclusively.