The Best Fps pixel graphics 3D Games for Linux

CASTILLO: The Nine Circles is an FPS Collectathon. Collect power shards in each circle of hell to unlock new areas and progress on your quest through 9 diverse worlds. Embark on a journey through the circles of Hell, using unique abilities and weapons.

FukTopia 4 is a frantic post apocalyptic First Person Shooter.

Rain Runner is a short, blood-pumping speedrunning FPS where you ditch your keyboard and only use your mouse! You’ll run constantly where you look, shoot targets and dash through challenging platforms. No checkpoints, no pauses: beat it in one sitting! Run, die, learn, repeat. Be better, be faster.

Hands of Necromancy is a Dark Fantasy First Person Shooter and metroidvania game, similar to Heretic, made with the GZDoom engine. Find your weapons, fight evil forces, use the special abilities of special transformations to find your path! Show how powerful you are as a Necromancer!

Sector 452 is a futuristic low poly shooter that takes place in the year 2058, you are an astronaut who was on a standard search mission that went horribly wrong. Fight your way through various planets, meeting friends and foes while looking for a way back home.

WARNING THIS GAME CRASHES WHEN YOU DIE! IT'S THE POINT OF THE GAME! Game includes shooting 3d Sprites. FPS shooting, various guns, and political humor.