25% off games launched by Aspyr in 2012. Discount available on Mac App Store and GameAgent Store. Titles include Borderlands 2 and DLC, Call of Duty: Black Ops and DLC, and several others.
I've been waiting for a price drop on Civilization V: Gods and Kings, which dropped from $31.99 to $23.99 on the Mac App Store. Purchases made on the Mac App Store can be made with iTunes cards/credit, so any iTunes card deals make this an even better deal.