Portal... and LASERS = Epic Win!

I just stumbled across this map-pack on youtube, if you have the pc version of portal you gotta try this! It's lots of lasers and optics, like a gigantic laser lab. It's very fun but I have to say the puzzles are tricky, but you just have to stop and THINK, then the solution becomes so obvious. There is a readme file in the rar that tells how to install and run it.

Enjoy!

Does it work with the free version? I got Portal Prelude and it doesn't work with the free version.

I got the free version too, I had no problems installing this.

I got around the prelude problem by doing this:
First: Install Portal Prelude in "C:\Program Files\Steam\steamapps\YOUR STEAM USERNAME\portal"

Second: Go to "C:\Program Files\Steam\steamapps\YOUR STEAM USERNAME\portal" and rename the folder "portal prelude" to "portalprelude"

Third: Open Steam and go to "Add Game", "Add an non steam game", and look for the "hl2.exe" in "C:\Program Files\Steam\steamapps\YOUR STEAM USERNAME\portal" and accept.

Fourth: Go to the properties of your new game called "hl2" and in the box name put "Portal: Prelude", and in the target box put "-game portalprelude".

It will be something like "C:\Program Files\Steam\steamapps\YOUR STEAM USERNAME\portal\hl2.exe" -game portalprelude

Close that window and play.