The Portal 2 Creation DLC that was announced yesterday is apparently already in testing, as one player has released a lovely video detailing the game's new level creation system in all its glory.
The "Perpetual Testing Initiative" will let players design puzzles and levels and release them through the Steam Workshop for other players to download and judge.
The video above is reportedly from beta footage, so it shouldn't be considered final. And there's a chance it could get taken down, a fate that seems to have befallen the previous versions of it that've been uploaded today.
Just in case, well, know that it looks intuitive, versatile and fun. We're looking forward to the free DLC's May 8 release. Got any ideas for levels? Tell us in the comments or on Twitter.