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.

'Testing is the future' is a map pack where you explore a decayed Aperture Science and start testing as you go deeper into the facility. The pack includes three maps. Since the map pack has some story, I recommend you to play the maps in order. To install

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

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

The Penrose Collection features an ever expanding series of maps with a focus on the Surface Division Field. That fancy invention is a new testing element the lab boys at Aperture Science South developed to conjure mid-air portals that allow two-way access

https://i.imgur.com/AjRuUad.png https://i.imgur.com/1dsDqk9.png This map was made in the https://i.imgur.com/XWAmiUd.png Hammer world editor. Here's how it works. If you want to learn hammer, start here. https://i.imgur.com/2CnFnns.png YES. maybe. who know

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