Descent II is a 1996 first-person shooter game developed by Parallax Software and first published for DOS by Interplay Productions. It is the second installment in the Descent video game series and the sequel to Descent. The base of the gameplay remaining the same, the player controls a spaceship from the pilot's perspective and must navigate extrasolar underground mines to locate and destroy their reactors and escape being caught in their self-destructions, while engaging and surviving infected robots, which will attempt to destroy the ship. Unlike other first-person shooters, its six-degrees-of-freedom scheme allows the player to move and rotate in any three-dimensional space and direction. The plot is linear and is mostly provided for the introductory and concluding full-motion video cutscenes. After the "Material Defender" (voiced by George DelHoyo) has destroyed all of the Solar System's mines in the original Descent, he stops in the asteroid belt to dock. He is then contacted by Post-Terran Mining Corporation executive Dravis, who exploits a loophole in a contract to coerce him to accept a new mission or forfeit his reward and face legal action. The Material Defender consents, and as Dravis tries to convince him that he is merely embarking on a reconnaissance mission, his ship is fitted with a prototype warp core. He is then sent to clear out PTMC's deep space mines beyond the Solar System.