Quake II is a first-person shooter developed by id Software and published by Activision in 1997. It’s the second game in the Quake series, but it is not a direct sequel to the original game. You take the role of a Marine named Bitterman, who takes part in “Operation Alien Overlord”, a desperate attempt to protect Earth from an alien invasion. Quake II has been released for Microsoft Windows, Apple Mac OS, Linux, Commodore Amiga, Sony PlayStation, Nintendo 64 and Xbox 360.
In this video, you can see the playable Windows demo version.