Project Spark will be free-to-play
Microsoft's game creation and sharing toolset, Project Spark, will be distributed for free.
Producer David Sapienza revealed the lack-of-pricing to Siliconera at San Diego Comic Con.
The developer noted that there will be a "free pack" containing "hundreds" of objects - everything included in the initial video demonstration - which does rather imply there will be premium packs as well, although this is unconfirmed.
Downloading games created by other users will also be free.
Announced at E3 2013 for Xbox One release, Project Spark is currently taking beta sign-ups.