Take control of a craft specially designed to navigate the tight corridors of the mineshafts. Your vehicle is also equipped with guns, missiles, and other weapons you can use to destroy the alien threat. Aliens have invaded the Lunar 1 mining colony, and you are the only person who can prevent them from taking over. Don't miss a single detail of the 27 levels thanks to free 360-degree movement in the fully 3D environments.


Storyline: The game begins with a briefing between an anonymous executive of the Post Terran Minerals Corporation (PTMC) and the player, a "Material Defender" hired on a mercenary basis to gather information about a computer virus infecting the robots used for off-world mining operations. The game progresses through the solar system, from the Moon to Pluto's moon Charon. After defeating the boss robot on Charon, the Material Defender is informed he cannot return to the PTMC's headquarters in lunar orbit, as there is a chance his ship may be infected with the same virus as the defeated robots.

The 1995 game Descent used a fully 3D polygonal graphics engine to render opponents (previous games had used sprites). It also escaped the "pure vertical walls" graphical restrictions of earlier games in the genre, and allowed the player six degrees of freedom of movement (up/down, left/right, forward/backward, pitch, roll and yaw). Descent became a cult favorite and is still modded & played online today.