1. Wolfenstein 3D (1992, PC)
Wolfenstein 3D, much like Duke Nukem, was based on an earlier 2d series of games. However, while Castle Wolfenstein was a 2d stealth action game, Wolfenstein 3D was heavily action oriented. This game set up many of the standard tropes of the FPS genre. The player fought Nazis and collected progressively better weapons. The action was fast paced and violent, and the game was developed on an advanced and well optimized engine. Sound familiar?