Xbox One will not allow for cross-platform play with Xbox 360 users, Microsoft has told VideoGamer.com.
Speaking to us following the next-gen console's announcement last night, Xbox UK marketing manager Harvey Eagle confirmed that players "won't be able to play the same game with someone on 360 and someone on Xbox One.
"Because of the different architecture of the systems it's not possible. Your Xbox Live account on 360 will carry over to Xbox One. That same account will work on both platforms. The multiplayer won't."
Microsoft has experimented with cross-platform play on Xbox 360 and PC previously, but didn't achieve particularly good results.
Xbox One was revealed in Washington last night. The console features 8GB RAM, a Blu-ray drive, 500GB HDD and "a completely redefined Xbox LIVE", but does not include backwards-compatibility support for Xbox 360 titles.
However, there's still ongoing confusion over the system's online requirements and its support for pre-owned software.
At the moment, it's looking increasingly likely that Microsoft will introduce a system requiring users to register software, including disc-based games, to their Xbox LIVE profile.
Xbox One goes on sale later this year.
Source: VideoGamer.com Interview