Valve Introduces The Portal 2 Perpetual Testing Initiative

Valve is gearing up to release a free batch of downloadable content for Portal 2 that allows players to create their own puzzle maps and share them with the community via Steam. The puzzle maker can directly publish maps to the Steam Workshop where users can browse, vote on, and select to play them. Selected puzzles will automatically be downloaded and installed inside Portal 2. The free DLC, entitled the “Perpetual Testing Initiative” (PeTI), will release for PC and Mac over Steam on May 8th.