Here's another deal with a difference from Get Games, in that you can get a whole mess of games for £38 or cherry-pick two of them for £8.

To maximise your savings, my advice would be to grab Painkiller: Hell & Damnation as your first port of call, which will save you about a tenner on the 2012 FPS remake (if you assume that it costs £4). Afterwards, any pick out of BioShock 2, Borderlands GOTY, Super Meat Boy or Hotline Miami will probably serve you well.