FTL: Faster Than Light (40% Off)

Retailer: Steam

Price: $5.99 (40% Off)

Link: http://bit.ly/SywXTg 

You're probably not smart enough to fully enjoy Faster Than Light, but that shouldn't stop you from trying. This very detailed space simulator you manage your own spaceship as you attempt to save the galaxy from certain destruction. It's complex, but a lot of fun and well worth the discounted price. Added bonus: The soundtrack's really good.