Mounts Source

Portal 2

Mounts from your own install, both DLC and the 2026 update included. Nothing converts or shows on screen yet.

Ticket: #007
Checked on: Steam, Linux
Last checked: November 1, 2026
Files: 34,342
Mount: portal2/pc/20260630.143259

Mounting

4 of 4 done

Done
Finds your copy

Picks up the install on its own, from Steam or wherever it lives.
Done
Reads every file

Every file reads straight from your copy, in the order the game itself looks them up.
Done
Matches players' copies

Your copy is fingerprinted from its own files, so a server can check everyone's match without sending any game content.
Done
Brings its mods

Extra DLC folders of your own, and Workshop maps once played. Checked on test installs, since none had been played on the checked copy.

Converting

0 of 4 done

To do
Models

Source's model converter works for Garry's Mod. It isn't hooked up to Portal 2 yet.
To do
Textures and materials

Waits on a table of Portal 2's own shader settings.
To do
Maps

Portal 2's maps are a newer version than Source's map converter reads so far.
To do
Sounds

Its sounds turn into Evil Engine sounds.

In game

0 of 3 done

To do
Shows on screen

Converted content actually draws in Evil Engine.
To do
In the spawn menu

Its props and models land in your spawn menu, no Plugin needed.
To do
Maps you can visit

Pick one of its maps from the menu and fly around inside it.

Where it stands

Evil Engine finds Portal 2 on its own and reads it the way its branch of Source does, archives before any loose files: the update folder first, then the two DLC folders, then Portal 2’s own, then the engine’s shared platform folder. That’s four archives over five folders and a little over 34,000 files, and it opens in about 36 ms. Which update you have is read from the game’s own engine.

Your copy is fingerprinted as one part covering everything the game ships, and every file in it matched Steam’s own checksums. Every file in the mount reads back in full, all 12.1 GB.

Known issues

The order comes from Valve’s public docs and hasn’t been checked against the game’s own path command yet.
Workshop maps don’t show their titles yet, since the install doesn’t keep them.
Only the Linux copy in English has been looked at. Language folders of a non-English copy aren’t mounted yet.

Next up

Checking the search order against Portal 2’s own path command.
Workshop maps as items with their titles.
A converter for Portal 2’s newer maps, and Source’s other converters hooked up with a table from Portal 2’s own shaders.

Finds your copy

Reads every file

Matches players' copies

Brings its mods

Models

Textures and materials

Maps

Sounds

Shows on screen

In the spawn menu

Maps you can visit

Where it stands

Known issues

Next up