Microsoft's Project Spark game creation tool has embraced the free-to-play model for a while, but that has still meant paying a fair chunk of change to build the experience you really want. However, even that cost is going away soon. As of an October 5th update, Project Spark is switching to a completely free model where all downloadable content will be accessible. You'll get refunds if you bought either content or a retail disc from July 28th onward. Microsoft is also handing over the keys, in a manner of speaking -- rather than focus on adding content and features, it'll spend more time on highlighting user-made material and opening things up.