Best third-party Portal maps?

I've beaten Portal multiple times, but I know everything to do now and it isn't much fun. What are the best user-made maps for Portal?

The best ones by far are The Portal Flash Pack (at least I think that's what it's called) and Portal Prelude. The former gives you 50 very creative levels. The latter gives you what is essentially an entirely new game and is one of the best mods for any game period (it is, however, very challenging, especially the first few levels).

Thanks. I'm downloading Prelude now and trying to find a version of the Flash Pack that isn't a .RAR file.

I basically got all my portal maps from here:

http://forums.thinkingwithportals.com/dload.php?action=category&cat_id=2

It hasn't updated in a long time, unfortunately. Some of those may not be hosted anymore. Look at the ratings. If it's 8/10 or over then it's good enough to download. If you don't want to go through all those, then hunt down the Ren tests and Remmiz chambers. I think there's three of each.

The previously mentioned Portal: Prelude and Flash Map pack are must haves as well.

Wow, i didn't even realise people made some third-party portal maps ( prepares to re-install Portal again ) woohoo!

Thanks. I'm downloading Prelude now and trying to find a version of the Flash Pack that isn't a .RAR file.

Phoenix534

Prelude has extremely challenging maps, that's for sure.

Wow, i didn't even realise people made some third-party portal maps ( prepares to re-install Portal again ) woohoo!

mhofever

Yup. I've been looking and there are actually a lot. To me, I feel that this was a game made to be modded, considering the game it is and how short it is.