Portal was an ambitious attempt to tell a story with the depth of a novel and the interactivity of a game, sitting somewhere between interactive fiction and simulation of a computer system.
Dare to travel the absurd and dangerous Orion Trail, where only the luckiest, bravest, and most stubborn captains will make it all the way to the end. Become famously incredible or incredibly dead in this single player choose-your-own-space-adventure!
