Dunno if this has been mentioned, but try 'Bloodwych'.
Wiki Page: http://en.wikipedia.org/wiki/Bloodwych
Came out around 1989, and was the 2nd 'Dungeon Master' type game I played, it was blooming awsome! It came with a 2 player 'multiplayer' option using 2 joysticks, and even included a shop NPC (me and my next door neighbour had a lot of fun playing this game to death). The graphics/game engine ain't as good as EoB, Ishar etc, but the gameplay is superb!
Would love an 'up to date' version of this..!!!
CrabStick..