Released

The Room
Uploaded by SpcAgentOrange · Jun 06, 2011
4 comments · (No ratings)

This is the first map I've ever done. It's not as full as I would like, but I think there's a good story in there. Thanks for playing!

The Room
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Reversal
Uploaded by NeoDement · Jun 06, 2011
21 comments · (No ratings)

A map centered around a conveyorbelt, which has been critically aclaimed as "nicely detailed" and "an interesting idea" by testers. Here's two full size screenshots: http://dl.dropbox.com/u/900111/sp_reversal0006.jpg http://dl.dropbox.com/u/900111/sp_reversal0003.jpg Enjoy, and please leave some comments - this is my first release here. (special thanks to msleeper for his modified transition instance)

Reversal
Panelized
Uploaded by dhavalmistry · May 28, 2011
26 comments · (No ratings)

This is my first ever attempt at mapping. I used this map to learn hammer. I hope you enjoy this not too hard puzzle and I would love to hear comments and suggestions. Enjoy!! Map Update#3 (Some gameplay changes)

Panelized
Lasers
Uploaded by Mog · May 24, 2011
12 comments · (No ratings)

A short, simple map. My first one. You'll have to use some clever thinking in order to light up the required laser relays.

Lasers
Gel Chamber
Uploaded by Althar · May 14, 2011
21 comments · (No ratings)

My first map for that game, it's not that hard. It's the kind of puzzle you can find in the game. ==V1.1.1== Fixed some shortcut

Gel Chamber
Quark
Uploaded by Omnicoder · Aug 28, 2010
11 comments · (No ratings)

Entry for myaperturelabs contest #3.

Quark
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
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
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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