Complex sentence: Festival of Magic is an upcoming role-playing video game scheduled for release in October 2015 for Microsoft Windows, OS X and Linux, with Xbox One, PlayStation 4 and Wii U versions scheduled for release soon after.
Split into simpler sentences: Festival of Magic is an upcoming role-playing video game scheduled for release in the first half of 2015. It is scheduled for release for the Microsoft Windows, OS X and Linux computers first, and then Wii U, PlayStation 4, and Xbox One platforms soon after.