Portal Stories: Mel

Portal Stories: Mel serves as an unofficial prequel to Portal, it features new mechanics and a prototype Portal gun.

Story
In the early years of Aperture Science Innovators, Cave Johnson's scientists rushed to get everything working to catch up with the growth of the company. Unfortunately, not everything worked as it should. Mel took part in a faulty experiment, the Aperture Science Innovators Short-Term Relaxation Vault, falling asleep for years. Now, with a fake Cave Johnson telling her she needs to escape the facility, and a new device, the mysterious Aperture Science Innovators Handheld Portal Device Prototype, her mind races with questions.