Nerve Software

Return to Castle Wolfenstein is a first person shooter video game published by Activision and originally released on November 19, 2001 for Windows. The single player game was developed by Gray Matter Interactive and Nerve Software developed its multiplayer mode. Id Software, the creators of Wolfenstein 3D, oversaw the development and were credited as executive producers. The multiplayer side eventually became the most popular part of the game, and was influential in the genre.

6 years in the making or back from the dead ? Gearbox's xenoshooter is finally here and pits a squad of soldiers against never-before-seen classes of aliens through story levels and multiplayer modes.