Legend of Grimrock (66% Off)

Retailer: Steam

Price: $5.09 (66% Off)

Link: http://bit.ly/HlqKA2 

You may remember this one from the 7th Humble Indie Bundle, but if you missed getting it for the price you'd like, it's down to $5 on Steam this weekend. Fans of classic dungeon crawlers full of puzzles and exciting turn-based combat will appreciate this retro-revival.