Top rated SP and Co-op maps.

scrawnet

The hardest Portal 2 maps I have played. Puzzles requiring ninja-skills and insane timing don't count as hard puzzles. They are just annoying. Portal is a puzzle game, and timing should not be a critical element of the game. Also, if I die in puzzles with

Just like the name.

A collection of maps by Mevious that I think all map makers should play.

Awesome puzzles collection. A must-play map series.

A collection of Maps I found fun, and had to unsubscribe to due to a limitation on how many maps you could have in the queue.

My favorite test chambers. Very interesting and required a lot of brain power...well if you disagree, you must be cleverer than me ;)

The Perpetual Testing Initiative (PeTI) is live! Even though most of you will be getting your first sweet taste of test chamber construction today, a lucky few of you have already been beta testing for the last couple of months. An unfair head start? You b