Tier 3 is an upcoming mod for Portal and Portal 2, it will take place in the year or so before Portal. Kat, the main character, is an elite test subject raised for the sole purpose of being the perfect test subject. Over her many years of testing, she has exhibited the kind of behavior GLaDOS hoped for. However, the Aperture Science Handheld Portal Device is nearly finished and Kat yearns to see the outside. After all, GLaDOS won't need her after she can finish the ASHPD, right?

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Languages

Languages

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Tier 3 will be out in at least three languages! German, English, and, surprise, surprise- Japanese!

Our Theatrical Trailer

Our Theatrical Trailer

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The Innovators in Science would like to present our Theatrical Trailer for Tier 3.

GLaDOS and Wheatley

GLaDOS and Wheatley

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Yep, Wheatley will be making in appearance as well! We thought you might want to hear the voice talents behind the two!

Reconstructing Science REmix

Reconstructing Science REmix

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Tier 3 will be using this fabulous remix of Reconstructing Science in our mod! Made by our own Harry101, this remix is meant to be more atmospheric and...

So are they really all that bad?

So are they really all that bad?

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Well, clearly some of our new textures weren't well received... So here. I'll show you what they look like in action.

Concept Art

Concept Art

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Behind all the mapping and technical issues to do a mod one crucial pivot is the story behind of it...

New Textures

New Textures

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Tier 3 will have lots of new textures to enhance the testing experience!

A Quick Overview

A Quick Overview

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Tier 3 is a designated prequel to Portal. You step into the shoes of Kat, a young woman who is part of an elite group of test subjects that GLaDOS chose...

Welcome to Tier 3

Welcome to Tier 3

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First thing you should know about Tier 3- We value the quality of the game more then the speed in which we release it. A lot more. A LOT lot more. REALLY...