Portal 1 (Released Map)
Completed custom maps and campaigns for the original Portal.
Entropy
Uploaded by Omnicoder · Aug 28, 2010
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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.
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Out of Order
Uploaded by Jaxe · Dec 09, 2007
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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.
