Valve is hard at work on the second downloadable content pack for Portal 2, and it'll be a good one.
The developer has confirmed that the 'major update' will feature "an easy-to-use in-game map editor that will let users design, build and share their own single-player and co-op test chambers with the community".
Other players will be able to download, play and rate for creations all via a simple in-game system and that, kids, means an unlimited stream of Portal action for as long as you have the cake to keep on testing.
It made no mention of platforms or price, but the game's first DLC, titled 'Peer Review', was free. Peer Review offered new challenges for players to solve as P-Body and Atlas, the stars of Portal 2's co-operative campaign.