Motanum's Standarlized Tests! All maps made in hammer and now take advantage of the workshop! Now with Cave Johnson's lines! Starts relatively easy and gets more complicated as it goes on! Don't forget to rate and enjoy! And leave comments

This is a collection of maps made by the Reddit community. If you want your map(s) added to the collection, just link to the map(s) you want added in the comment section and to your reddit profile. Please do not make requests of maps that are not made by r

Into the Opera is a work in progress map serie about 3 people getting stuck in the opera lead by the turrets. Started in the PTI editor and continued with enhancements made in Hammer. Current PTI maps are being converted and enhanced to and with Hammer. Th

Jump A Little Higher! A Little Higher is a small mappack containing 5 short, and simple puzzles using a new element, The Repulsion Cube. With this new element, players can control the Repulsion Gel at their will to solve puzzles.

Hello and welcome everyone, to what has probably been my biggest Portal 2 project so far. This is Reliquiae - a twelve-part series of simplistic easy to medium difficulty test chambers. Mostly aimed at those new to the workshop, but also fun for experience

A Portal 2 Single player modification. This is Aperture from Portal 1, completely rebuilt from memory and with a my own spin on design and puzzles. I will be using the workshop for public testing, so feel free to add me for feedback, or just leave comments

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:

Somewhere in the bowels of Aperture, lies houndreds of test subjects, waiting for their entire life to be awaken to do some science.

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.