The engine is fairly impressive having textured floors, ceilings, and sprites which make it seem like it's somewhere close to a real life space. Besides that every part of this game is horrendous. The game runs in a terrible framerate, the levels are huge labyrinths, there is simply so little ammo for a good half of the game, shoddy hit detection, the shooting doesn't feel good. I beat this game, but it singlehandedly put an end to my FPS binge.