Is not one, without the other....

Construction workers we're told to make a long thin test chamber. While working, they found a door, and decided to put the area beyond the door into the test. GLaDOS approved, then killed them....

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 ...

Like the first Gelocity, this coop map is a race track again: Use your portal gun cleverly to trick your opponent and be the first to reach the finish line! But this time it's a little more dynamic: You can use your ping tool to trigger traps which can sto...

Well, you might have played Gelocity 1 or 2. So you will know what this is about: This is NOT a puzzle, it's a race track covered with orange speed goo. You have to run, jump and portal your way through the course and - like in Gelocity Stage 2 - you can s...

Mini Tests Mini Test chambers are chambers I make to be hard. To hurt you, not for fun, but for pain. You get real credit for beating these....

So a friend of mine recently asked me to make a super hard level for someone that was virtually impossible to beat... But only virtually. Winning this level requires skill, brainpower, and also a ton of luck. Anyway, have fun... ;) Found a pretty significa...