Portal 3

{{Template:Ownership|Squirrel71 Portal 3 was released in 2025 for the Playbox and it actually happened in 2081 on one of the Random Isles.

Chapter 1 - The Return
Chell, after several years after GLaDOS kicked her out of Aperture, rejoined Aperture Laboratories. Which was now called Aperture Test Chambers.

She decided to sign up for the 8 Test tutorial levels as she forgot about