Previously hot (878°) for £13.56.
Go to the following page:http://www.game.co.uk/lowdown.aspx?lid=15422&cm_mmc=game-_-multi-_-BAFTAVoucher1-_-email
Vote for your favourite game. You'll eventually get a £5 voucher to spend on any of the listed games.
As LIMBO is an arcade game, it takes you to 2100 Xbox Live Points. So you'll get £5 off 2100 Xbox Live Points (current price is £16.99).
Note your voucher may take a couple of days to arrive via email.