Eye of the Beholder is one of the great dungeon crawls
This “black box” game was published by SSI (Strategic Simulations Inc.) and developed by Westwood Studios. Unlike the “gold box” games that SSI developed in house, it featured real-time combat and a first person view throughout, similar to the classic game “Dungeon Master“. Eye of the Beholder was a critically acclaimed game (aside from the lackluster ending) that spawned two sequels. The black box was the same form factor as the classic gold box games.