You can find the official on the Steam Store . Unlike most community mods, this is a paid product, typically priced around $4.99 . Essential Download Requirements

It is available for Windows , macOS , and Linux . Note: The macOS version may not work on Catalina (10.15) or later due to the removal of 32-bit support . Key Features of the Mod

You must have Portal 2 installed in your Steam library to play.

The mod must be installed on the same drive as Portal 2 to function correctly.

Aperture Tag offers a full campaign that takes approximately to complete.