HMV are selling "Unreal Tournament 3" for the PC for £11.99 (inc Del.)
You can get cashback from the usual sites (e.g. 5% Quidco, making it just £11.39)
The next best price seems to be £13.89 from dvd.co.uk
'Unreal Tournament 3' sees the return of the premier online FPS franchise. With added features like persistent stats and matchmaking, combined with the award-winning Unreal editor, the massive Unreal community will continue to make Unreal Tournament the dominant mod platform!
- Unparalleled graphical and physical realismfrom the latest Unreal Engine.
- Includes the brand new Conquest gametype, with vehicle-focused combat raging across multiple maps, where the landscape alters as control of bunkers and bases changes hands!
- Expanded Onslaught vehicle combat gametype, featuring the high-tech Axon vehicles against the sinister new Necris armada. Over a dozen unique engines of destruction!
- Polished and refined versions of all the popular "classic" UT gametypes: Deathmatch, Team Deathmatch, Capture the Flag and Instagib CTF!
- Collaborate with and compete against the new and returning signature characters of UT, with improved AI providing distinct personalities.... and brutal vendettas.
- Command AI and human teammates with the new voice system, for deadly tactiacl coordination!
- Take the ultimate online shooter offline! Try your luck against lightning fast AI in the all new single player tournament mode!