If you are old enough to have played Dungeon Master, then you might want to give Legend of Grimrock a look. For the others, this old school RPG is still worth checking out, as proven by this preorder trailer of the game. This dungeon crawl RPG will be available on Steam and GoG on April 11 for the price of $14.99. Preordering the game will also give you a 20% discount. Update: Screenshots added.