Released only approximately 1 month ago (and a bit more now) on Steam, Dust: An Elysian Tail is now 50% off. Reviews have been consistently positive, and from what I've heard the soundtrack is superb (I don't own the game, but I might get it…need a few more bucks in the Steam Wallet first though).
If you're into the Steam Trading Cards, Dust: An Elysian Tail is getting them soon. Also, just a reminder, the game is Single player only, but it can be played with a controller and has Steam Big Picture support.
Meanwhile, Baldur's Gate: Enhanced Edition is also on sale, 75% off, which features the base game, the Tales of the Sword Coast expansion and extra new content. From what people on the forums have been saying, the game still has quite a number of bugs. Multiplayer capabilities seems to be fairly stable, while HD resolutions are available for this classic.
Dust: An Elysian Tail - $14.99 USD $7.49 USD
Baldur's Gate: Enhanced Edition - $19.99 $4.99 USD
Bring on the Summer sale already enough with these rubbish mid week deals.