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...

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 ...

The entire map-series has been reworked and updated on 29. June 2017 This map uses a funnel and a light bridge to create some awesome teamwork. estimated difficulty: easy/medium Don't worry if you lose your portals or die by accident: You only have to solv...

Roses are red. Violets are blue. Glados wants you dead. What could you do? Dear test subjects, today is your big day! Robot love is not wrong! Can you and your partner prove this to GLaDOS? Today you should grab your favorite co-op partner and explore the ...

A coop map made for the 2011 summer mapping initiative. https://www.thinking.withportals.com/ Have fun people!...

The entire map-series has been reworked and updated on 29. June 2017 This map uses a funnel and the edgeless safety cube to create some awesome teamwork. estimated difficulty: easy/medium Don't worry if you lose your portals or die by accident: You only ha...

Beyond Imagination - think outside of the box! What might look like a paradox at first, can be solved in another more complex way. - estimated difficulty: hard (logic based puzzle) - estimated blindrun playtime: 35 minutes (or more) - no ninja skills and n...

The sequel to the Tiny Challenge. This one is bigger better and much more refined. It has portal puzzles, logic puzzles jumping puzzles and cool reward for the winner. Some places have a split path so everyone has a fighting chance. Please leave a comment ...

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The entire map-series has been reworked and updated on 29. June 2017 This map uses a funnel and blue gel to create some awesome teamwork. estimated difficulty: easy/medium Don't worry if you lose your portals or die by accident: You only have to solve each...