"Portal 2" Level Editor Gets Co-op, Existing Players Get $5 Copy for Friends
Valve recommends you sit down for this announcement, though you might also want to jump into the air and yell in excitement. If you really like playing Portal 2 co-op, that is (and who doesn't?).
The game's "Perpetual Testing Initiative" level creation mode will from now on allow you to create levels for co-op play, which wasn't previously possible.
They're also giving all existing owners of Portal 2 a coupon to get a second copy at $5, perfect for gifting to a friend for the selfish purpose of getting yourself a new co-op partner.
Finally, they've added a Quick Play mode to Perpetual Testing that creates a never-ending playlist of quality community-made levels. Perfect for the Portal addict in us all.
Have you created any sick Portal 2 levels yet? Experienced any great user-created content? Tell us in the comments or on Twitter.