Portal Pro is a set of test chambers focusing on solving puzzles locally rather than using complex fling techniques. The goal here is that the solutions are hard to come up with but easy to actually do.

Report abuse Portal Pro v1.1
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Sep 7th, 2010
217.68mb (228,255,724 bytes)
20,941 (1 today)
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ATTENTION: This version of Portal Pro is out of date. Please download the latest version. This is the second release of this mod including several fixes. It is complete but still may contain some bugs or issues. Read details for installation and additional information.


  • Over 30 levels
  • Behind the scenes areas
  • Secret test chambers
  • Fewest portals challenges
  • Custom dialog
  • Custom music


  1. Extract the zip.
  2. Move the Portal Pro folder into your steam SourceMods folder (e.g., C:\Program Files\Steam\steamapps\SourceMods).
  3. Restart steam and Portal Pro should be in your games list.


  1. Delete the Portal Pro folder from SourceMods.

Some notes:

  • Saves from version 1.0 will most likely NOT work in version 1.1. This includes any unlocked or completed secret maps.
  • It is highly recommended that you delete the previous version of Portal Pro before installing this one.
  • It is recommended that you have subtitles turned on.
  • It is recommended that you have portal funnel enabled for all levels.
  • No levels or challenges require any glitch portal techniques (including “portal tunneling”) or angled flings.
  • As of this release, the game is only available in English.
  • I haven't tested the game on a Mac, so it might not work.

This update includes a few major fixes as well as some minor ones, including:

  • Made the AI voice louder
  • Fixed "grid" being unbeatable because the player starts with the blue-only portal gun
  • Fixed a few unintended solutions
Preview Image
Portal Pro v1.1
Post comment Comments
Trainzack Oct 16 2010, 10:06pm says:

that picture looks nice! I like what you did with the indicator strips.

+2 votes     reply to comment
denzildk Jan 9 2011, 8:02am says:

I've got a problem starting the game: every time i try, i get this messege: a source engine game is required to run mods.

i have portal installed so i cant understant what the problem is.
What shal i do to play the game?
regards denzildk

+2 votes     reply to comment
Mevious Author
Mevious Jan 9 2011, 8:20pm replied:

I'm guessing you got the free version of Portal, and this error has to do with that. Try googling the error message to find a workaround. Or you can buy another Source Engine game to get access to the SDK which should let you install mods.

+1 vote   reply to comment
Chell_Johnson Apr 19 2012, 11:53am says:

Cool mode.Dark a bit,but cool.I mean dark by it's scenario.

+1 vote     reply to comment
TriMania Jul 17 2013, 9:27am says:

The best mod!

+2 votes     reply to comment
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Released Jul 2010
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