Old Science Initiative
PuzzleWelcome to the "Old Science Initiative", astronauts, war heroes, Olympians... Who else is worthy of the best honors?
After waking up on Iris island, the only thing Chell remembers about why she's there is that she signed up to help with scientific research for the IRIS initiative, a classified research project by the Aperture Foundation For Science. She quickly realizes that she is on her own... mostly.
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Welcome to the "Old Science Initiative", astronauts, war heroes, Olympians... Who else is worthy of the best honors?
This Portal 2 single-player mod will be a reimagining of the original Portal, with updated chambers and visuals.
Project Aperture is a remake of Portal 1 in Portal 2's engine. this will include the main game with an expanded and re-imagined escape sequence as well...
Portal: Colors is a modification for Portal 2 you play as a prototype robot that is to be tested for its abilities and performance such as symbol and...
Portal 2: Alive Again is a mod that tries to actually faithfully bridge the gap between portal 1 and portal 2 while still vastly improving on the original...
Portal: Stay Inside is a third-party addition to VALVe's game Portal 2. Taking place in the familiar Aperture Science facility at an unspecified point...
Aperture: Salt Mines is a large story-driven and puzzle-based modification for the award-winning game Portal 2. Descend into the heart of Aperture Science...
(Subject to Change) You find Scott, a maintenance core. He leads you through test chambers while you slowly repair the facility, walking through many...
Do you have what it takes to stop the AI from killing you before you can fix it? In this exciting DLC package for Portal 2 you will navigate detailed...
Explore a new wing of Aperture Science focused on the creation of Portal Guns. Play as a scientist, traversing it's dilapidated remains after an unforeseen...
Solve puzzles with paint! In this mod for Portal 2, you have 3 paints at your disposal to solve puzzles in new and unique ways using the Paint Gun!
Portal: Revolution is a Portal 2 mod with an original story campaign, custom gameplay elements, new music and characters.