A series of five difficult levels. If you are looking for instant gratification, leave now. Compliments and criticism are appreciated. Use Quicksave/Quickload with care. Average expected playthrough time: 3 to 6 hours. Average test completion success rate:

High quality conversions of other games to Portal 2, with their original maps, graphics and sounds. My DooM and Wolfenstein levels, and Timoteeei's excellent Minecraft levels.

This map-series has been completely reworked on 29. June 2017 • 3 new maps have been added • 4 existing maps have been updated, reworked and improved • gameplay improvements and bugfixes (including engine related bugs) • I strongly recommend to replay the

The first Portal is still alive! This collection contains all twenty courses from the first Portal, remade for Portal 2. I started working on this project the very first day they released the PETI, my goal being to recreate the original courses to the best

Set shortly after the events of the Cooperative Testing Initiative, a test subject wakes to GLaDOS' newest testing track. Make your way through 22 brand new test chambers in this map pack.

Hi everyone! I already uploaded this mappack on MyAperturelabs, but now where Steam has his own Workshop I will bring it to you! My first Portal 2 Map - 3 .bsp files of hard work are waiting to be played by every single of you! In Curious Chamber you'll ha

Expirience a re-imagination of Tag: The Power of Paint in the world of Aperture Science! This Map-Pack is NOT part of the DLC storyline and does NOT include Cave's lines. NEWS! Please vote for this in greenlight! We have come a long way since this was firs

A collection of 6 Wheatley themed maps. These maps include test chambers, moving test chambers and BTS themes. Some include factory and underground. Bottomless pits and water for you to fall into. But try not too because that's what Wheatley would want. Me

THIS IS NOT MINE. Since the mod was deleted, I have reuploaded it so people can still play it. If the original creator wants me to take this down, contact me immediately. ALL CREDIT GOES TO BLAPPATURE EXECUTIVE NO. 1