Moria

Moria is a dungeon crawl style role-playing video game developed for the PLATO system beginning around 1975 by Kevet Duncombe and Jim Battin. In the game, up to ten players can simultaneously journey through a dynamically generated dungeon, presented to the players in first-person wireframe 3D. Some Moria players preferred to "role-play" as their fantasy personas instead of merely playing the game.