Descent is a 3D first-person game that puts the player at the controls of the Pyro-GX spaceship. Descent is notable in that the player travels through various interior locations (mines) but can do so in 720 degrees of movement. The ship however only moves forward and backward in any of the directions it is facing. The ship is able to use a variety of weapons scattered as power-ups throughout each level. (mobygames.com)