Free game creation tool Project Spark will enter beta for Xbox One in January, Microsoft has confirmed to Digital Spy.
The Xbox One beta will follow the Windows 8-based closed beta set to begin in October.
By January the game will be pretty much feature complete, says Microsoft Studios exec Dave McCarthy.
"Everything will be fully playable on day one [for Xbox One]," said McCarthy. "You'll be able to either use that Crossroads mode to build something really quickly through story choices.
"You can do the blank slate editor, or you can take games that other people have built and then just edit them for yourself."
The Xbox One version will utilise Kinect for performance capture and to record voice acting.
Source: Digital Spy