Here’s Darksiders II for $15, 15€ or £10.49 for Europeans (which is not fair at all… but oh well) at 70% off if it’s original price. Additionally it’s DLC (season pass) is also on sale right now for something around 5€ all around the world. The game and it’s DLC is Steam redeemable.
Ridge Racer Unbounded is also on sale on GamersGate, nearly 7€ or £5 for Europeans. This game is of course also Steam redeemable.