Portal: The Must Beat Black Mesa Testing Initiative, is a new Portal 2 mod showcasing the old 1996 Testing Initiative that was shut down in 1997, when aperture bought black mesa, but the test chambers are still there after 300 years, you will explore these old test chambers Portal 2 mod Made With the Source engine

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Laminax Laboratories

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Laminax Laboratories is a mod for Portal 2 based heavily on the game "Kaiju Paradise" made by LAMINAX CO.

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Portal: Revolution is a Portal 2 mod with an original story campaign, custom gameplay elements, new music and characters.

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Embark on a journey with the revolutionary POSM-a device in this large story-driven modification - Filter Factor. In the retro-futuristic labs of Aperture...

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Solve puzzles with paint! In this mod for Portal 2, you have 3 paints at your disposal to solve puzzles in new and unique ways using the Paint Gun!

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A paid mod for Portal 2. A very well finished, good looking mod. In Aperture Tag the test subject uses not portals but a paint gun to solve puzzles.

Portal Chell-Napped

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Portal: Chell-Napped is a Portal 2 mod created by Lexiosity (me) and is in Work-In-Progress. It is set after Portal 2 and is a concept of what happens...

Aperture: Salt Mines

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Aperture: Salt Mines is a large story-driven and puzzle-based modification for the award-winning game Portal 2. Descend into the heart of Aperture Science...

Portal Transfered

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Hi future test subjects, this mod will be fantastic! You're a test subject that woke up from the aperture science relaxation centre, you find yourself...

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In a room full of electronics that has been reconstructed after the Wheatley incident, some androids discover a strange "Atlas" model. One core recognizes...

Portal: Intrusion

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Portal: Intrusion is a mod for Portal 2, running off of Community Edition. Set after the events of Course 5 in co-op, You, Thomas, wake up from the human...

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(Subject to Change) You find Scott, a maintenance core. He leads you through test chambers while you slowly repair the facility, walking through many...