Quake II is a 1997 first-person shooter video game developed by id Software and published by Activision. It is the second installment of the Quake series, but not a direct sequel to Quake. The game's storyline is continued in its expansions and Quake 4. The soundtrack for Quake II was mainly provided by Sonic Mayhem, with some additional tracks by Bill Brown; the main theme was also composed by Bill Brown and Rob Zombie, and one track by Jer Sypult. The soundtrack for the Nintendo 64 version of the game was composed by Aubrey Hodges, credited as Ken "Razor" Richmond.