Join Andrew and Marn as they dig into the Valve ARG’s for Portal 2 and the Steam Winter Sale! Marn breaks out some old tech. Andrew gives a GDC talk. Both band together to sell some video games.
The Orange Groves Network
Portal ARG Wiki
Gabe Newell at GDC
Gamasutra’s The Portal 2 ARG: The Whole Story
Game Detectives Wiki for the Winter Sale ARG