Map

Entropy
Uploaded by Omnicoder · Aug 28, 2010
1 comments · (No ratings)

Beta of Entropy. This is a sequel to Catalyst and the second map in my Four Portals series. If you have not played Catalyst it is included as a tutorial for you.

Entropy
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Brain Donuts
Uploaded by SkyFerret · Jul 18, 2019
1 comments · (No ratings)

Donuts aren't good for your body, but this map is good for your brain. Actually, it's meant to mess with your head. Look around. Explore. Look behind you. Strange things happen. Unzip the file, put some sprinkles on it and stick it in your maps folder.

Brain Donuts
A Simple Test
Uploaded by Graytico · Jun 28, 2012
4 comments · (No ratings)

This is a really simple map which I made mostly to test out the clean style, clipping walls, and Brainstone's Elevators. If you want to see Brainstone's Elevators: community-releases/elevator-videos-fixed-brainstones-hardcoded-instances-t6705.html

A Simple Test
Catalyst
Uploaded by Omnicoder · Aug 28, 2010
4 comments · (No ratings)

A short map testing a new concept. Please post your thoughts so I can decide if I should use it in the future. [In future maps each portal will have an indicator in the bottom left showing you which Portal set it belongs to]

Catalyst
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Out of Order
Uploaded by Jaxe · Dec 09, 2007
0 comments · (No ratings)

Entry for november contest. Instructions: 1. Extract to: SteamApps//portal/portal/maps 2. Launch Portal, and select Bonus Maps. 3. Select "Maps by Jaxe", and select this map.

Out of Order