Puzzle adventure game Portal 2 and gritty shooter Battlefield 3 have emerged as the big winners at the GAME British Academy Video Games Awards.
Valve's darkly comedic brainteaser won the evening's top prize of best game, while also claiming gongs for design and story, meaning it matched its three-award haul from the recent Game Developers Choice Awards.
Meanwhile, EA and DICE's cutting-edge action epic claimed the online multiplayer and audio achievement awards and also snagged the GAME Award of 2011, the evening's only publicly-voted category.
Other winners during the night included LittleBigPlanet 2, which won the family and game innovation categories, while LA Noire walked off with the prize for best original music.
Batman: Arkham City took the action gong and the prize for best performer, which went to Star Wars star Mark Hamill for his cackling voice role as the Joker.
Also claiming prizes were Kinect Sports Season Two in the sports/fitness category and Total War: Shogun 2 for best strategy game.