This coop map is rather a race track than a puzzle. Use your portal gun cleverly to trick your opponent and be the first to reach the finish line! You will probably need a few laps until you know all tricks - so give it a second try! Please note that this ...

'Bridge Building' created by DrFauli - 3 large rooms; difficulty increases with each room - design based on chapter 3 of the coop-campaign : Q: Does the solution to one of the puzzles include 'fast reflexes', dying or ninja skills? A: No! You don't need ni...

This coop map consists of 3 testing chambers and features different kind of testing elements. It is not very long map though and maybe not all that tricky, but I hope you enjoy it nonetheless! :D...

Short map with 2 chambers. Featuring light bridge, funnel, faith plate and deadly lasers! Also GlaDOS. 1.01 released 24.1.2013: *Cannot get stuck if you leave the cube on the button...

STORM THE GATES! A fun and relatively easy co-op map....

Hi all, First map created with Beemod 2 Difficulty: Medium-ish Build Time: 2-3 hours Main Element - Sendificator Please post any feedback or bugs that you come across but most importantly have fun!...

Be sure to make use of the 'tab' function in which you can see what your partner sees. Keep in mind in cooperative chambers you must employ two sets of portals. Teamwork and communication is key to completing any cooperative test chamber....

Traverse though the vents of this test with a bud....

Seems Hard. It's Hard. This test requires cooperation. Good Luck. Difficulty: Intermedium...

None of this is relevant to the actual level, just a thing I wrote because I was bored. Attention to all multi-dimestional test chamber subjects: This puzzle has been tested (less than) 6-billion-and-6 times by interdimensional, (un-)professionally trained...

An easy yet satisfying level. YOU MONSTER! They're one of us....

Hi all, Please post any comments if you run into any bugs or obvious unintended solutions Communication is key. You won't be able to complete without some good old fashioned team work. Easy to medium difficulty. Have fun ...

Republished, for some reason this wasn't in my workshop any more. In this chamber you'll need to use tractor beams and a laser at the correct angle to finish. Medium difficulty EDIT - Removed observation rooms that could be used to stand on, thanks for cal...