Sleeping Dogs: Definitive Edition is down to £10 -- it went lower around Christmas, but this is a damn good price for the remastered game, and all of the DLC packs are included. If you already have the game, though, the individual packs are 50% off right now, starting as low as 60p.
Gamersgate are also running a weekend sale for the Talisman series. Click here to check that out >>
It seems that the 3 for 2 offer is still running at the time of writing, so be quick i you want to bag yourself a bargain!