Torchlight is a game that I've found enjoyable and reminds me of Diablo II...
It's only $5 if you buy it today, you can play the demo before hand if you like. All you have to do is get Steam if you don't already have it.
This game is a steal at $5.
Buy here (demo here too):
http://store.steampowered.com/app/41500/
Gameplay vids:
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