Quake II is a first-person shooter video game developed by id Software and published by Activision. It is not a direct sequel to Quake; id decided to revert to an existing trademark when they were unable to agree on a new name that did not violate another company's trademark. As such, Quake 2 is the first game in the Strogg series.
The soundtrack for Quake II was mainly provided by Sonic Mayhem, with some additional tracks by Bill Brown, a main theme also composed by Brown and Rob Zombie and one track by Jer Sypult.
Quake II takes place in a science fiction environment. In the single-player game, the player assumes the role of a Marine named Bitterman taking part in "Operation Alien Overlord", a desperate attempt to prevent an alien invasion of Earth by launching a counter-attack against the home planet of the hostile Strogg civilization. Most of the other soldiers are captured or killed as soon as they approach the planned landing zone (LZ). Bitterman survives only because another Marine's personal capsule collided with his upon launch, causing him to crash far short of the LZ. It falls upon Bitterman to penetrate the Strogg capital city alone and assassinate the Strogg leader, the Makron.