Ubisoft sold through more than four million copies of hacking adventure Watch Dogs in its first week.
"The results we achieved in the first week of launch are amazing and prove Ubisoft's commitment to developing new blockbuster IP and thoroughly new-gen experiences," said Darren Bowen, UK sales director.
Ubisoft had previously announced that Watch Dogs had scooped up more first day sales than any other game it had released.
Watch Dogs, one of the year's most hyped games, has had mostly positive reviews since its launch.
TimeOut gave it four out of five, praising its hacking elements but said it was let down by a story that didn't connect and too many elements that resembled Grand Theft Auto V.
