Steam link: https://store.steampowered.com/app/400/
Short Description: Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
Platforms: Windows Mac Linux
Release: Oct 10, 2007 (13 years, 11 months ago)
Tags: 3D Platformer Action Adventure Atmospheric Classic Comedy Dark Humor Female Protagonist First-Person FPS Funny Physics Platformer Puzzle Puzzle Platformer Science Sci-fi Short Singleplayer Story Rich
Revenue Estimate: ~$15 million