mod
The Unknown Part 1
by KLJF22
You awake in a pile of broken glass, with a pounding headache and no memory of how you got there. Your only goal is to find your portal gun and escape from the building. Note that this is my first map ever created using Hammer World Editor and it was originally created using the Alien Swarm SDK,...
- Latest version
- no release indexed
- Downloads
- 3.8k
- Rating
- 25
- Filed under
- Custom Story, Custom Visuals
- Updated
- 14 y ago
- Available on
- Steam Workshop
Download
Delivered through the Steam client, not a file this page can link to.
Frequently asked
How do I install The Unknown Part 1?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Portal 2 all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download The Unknown Part 1 safely?
From the author's own page on Steam Workshop, which is where the data here is synced from. IndexGG never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.
Which Portal 2 versions does The Unknown Part 1 work on?
The author has not declared a supported version in the metadata we sync, so there is nothing here we can state as fact. Check the project's own page before installing it, and treat an old mod with no declared version as untested on modern Portal 2.