If you didn't take advantage of Greenman Gaming's recent Hard Reset deal... then prepare to have your apathy rewarded with an extra £2 saving. Direct2Drive is currently running a stonking promotion. This outrageously visceral shooter, created by a host of Painkiller and The Witcher developers, is a brutal and brilliant experience with an exceptionally stable bespoke engine to match. The story isn't up to much, mind.
Considering that Steam would like you to part with £22.99, I'd advise you to take advantage of this deal while you can.