Portal 2 puzzle creator to expand to include co-op levels

The Perpetual Testing Initiative expands

The Perpetual Testing Initiative launched by Valve will now expand to include the ability to create co-op puzzles as well as single player ones.

Mac and PC Portal 2 gamers have created 170,000 levels since The Perpetual Testing Initiative level creation tools were launched on Steam in May.

As well as allowing the creation of Portal 2 co-op test chambers the new update adds a new Quick Play feature that allows speedy access to the top-rated community-created chambers in every category.

Finally, to celebrate the launch of the new update all Portal 2 players on PC and Mac will receive a 75 percent off voucher so that they can easily find partners to enjoy the new co-op test chambers.

E3 Trailer