A level editor that will allow players to create and share their own Portal 2 puzzles is coming to PC and Mac next month.

Available for free, the Perpetual Testing Initiative includes a “simplified puzzle maker” that will let anyone design levels and publish them to the Steam Workshop where they can be played and rated by others.

No plans were announced for bringing the DLC to consoles.

The Perpetual Testing Initiative will be released on the 9th of May.

Portal 2 was a finalist in the Gameplanet Players’ Choice Awards 2011.