Portal: Stay Inside
PuzzlePortal: 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...
Embark on a journey with the revolutionary POSM-a device in this large story-driven modification - Filter Factor. In the retro-futuristic labs of Aperture Science, circa 1976, Jennifer Winslow, a regular office worker, gets thrust into an unexpected adventure.
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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...
When Benjamin Carter is thrown into an Aperture prison for a murder he didn't commit, he is mysteriously released from his cell three days later. Who...
Portal Reloaded is a free, community made modification for Portal 2. The mod builds on the concepts of the main game by allowing you to place a third...
Hi future test subjects, this mod will be fantastic! You're a test subject that woke up from the aperture science relaxation centre, you find yourself...