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The Aperture Tag mod, which was previously a free download, has been made from the ground up and boasts new puzzles, 27 new stages, a new character, new story, new voice acting and a nifty level ...

It's no secret that when Valve initially conceived of Portal 2 it didn't have portals. Or at least it didn't have a portal gun. Now, Valve superfans have created their own modded campaign that follows ...

A new Portal 2 campaign, licensed but not made by Valve, hit Steam today. Aperture Tag removes the iconic portal gun, replacing it with a new puzzle-solving weapon that fires out globs of gel. It's ...

I was poking around for interesting Portal 2 maps to play, and instead found an entire mod that replaces the portal gun with a gun that shoots the blue and orange gel from Portal 2. Even better, it ...