Quake II is an FPS developed by Id Software and published by Activision in 1997.
Mankind is at war against the Strogg, a hostile alien cybernetic race. You are Bitterman, a marine taking part in the invasion of their home world.
The game was not supposed to be a sequel to Quake, but when the team could not decide on a title, they went back to the old, recognizable one. Although the gameplay was similar, the setting and aesthetics were vastly different. Its industrial metal soundtrack was composed by German musician Sascha Dikiciyan, aka Sonic Mayhem.
Quake II was far more advanced than its predecessor, featuring 3D acceleration out of the box.
While Quake III Arena had Bitterman as a playable character, it did not have a plot per se. Quake 4, developed by Raven Software and released in 2005, finally continued and concluded the Quake II plot.