Valve has confirmed details on its first downloadable content coming for Portal 2 “this summer”.

The new DLC will be available on all platforms(PS3, PC, 360 and Mac). Currently code named Portal 2 DLC #1, it will bring new chambers, leaderboards, a new challenge mode for single and multiplayer modes, “and more”. That already sounds like plenty, but we’ll take more if you’re offering, Valve.

And guess how much that lot will be. Free! The best kind of price.