Backrooms: Skibidi Shooter 2

A Shooting game that plays in the browser: Backrooms: Skibidi Shooter 2 starts on the click and keeps its progress there. You can play it with keys or with your thumbs; it reads whichever you give it. Listed under 1 player, 3d, 3d games, action, first person shooter.

Everything runs client-side, so there is nothing to set up before you start.