Frozenbyte announces an August 20th release date for Trine 3: The Artifacts of Power, celebrating the coming of the next installment in their puzzle/platformer series with a new trailer. The game is already available through Early Access, on GOG.com, Humble Store, and Steam, and the announcement mentions the release will be followed by versions for OS X, Linux, and consoles:

Finnish game developer Frozenbyte is excited to announce that the puzzle-centric platformer, Trine 3: The Artifacts of Power will be out of Early Access and officially released on August 20th. The Windows version will be purchasable on Steam, GOG, and Humble. Mac and Linux versions are in development and due later this year.

The Early Access price of $19.99/19.99 € will go up to $21.99/21.99 € upon official release, and an epic soundtrack by Ari Pulkkinen is included!

Frozenbyte CEO Lauri Hyvärinen commented on the official release and the end of the Early Access period: "I'd like to thank everyone who bought the game during Early Access. We couldn't have done it without your support and feedback, and we're extremely excited to present the finished game on August 20th!"
Next up for Frozenbyte are the Linux and Mac versions of Trine 3: The Artifacts of Power, as well as the console versions.