Dungeons of Daggorath was a 1982 computer game and one of the first games to use a 3D wireframe first-person perspective. It was produced by DynaMicro for the Tandy TRS-80 Color Computer. The game was written by Douglas Morgan and Keith Kiyohara. It was released as a ROMpak cartridge for the Color Computer, which limited the size of the code to a mere eight kilobytes. Despite the small size, the game features a multi-level maze and groundbreaking sound effects by Phil Landmeier that provide important clues to the locations of monsters.
If you do not have a Color Computer hanging around, why not take a look at the Project Page for Dungeons of Daggorath PC-Port