Plot: Maze, later expanded and renamed to Maze War, is a 3D networked first-person shooter originally developed by Steve Colley, Greg Thompson, and Howard Palmer for the Imlac PDS-1 computer. Wikipedia
Plot: Crawl is a brawler indie game by Australian developer Powerhoof. Up to four players and bots in local multiplayer advance through randomly generated dungeons with one player as the hero and the others as spirits who possess traps and monsters in the environment to kill and thus replace the hero. Wikipedia...
Plot: Dungeon Master is a role-playing video game featuring a pseudo-3D first-person perspective. It was developed and published by FTL Games for the Atari ST in 1987, almost identical Amiga and PC ports following in 1988 and 1992. Wikipedia