PS3 Cheats - Portal 2 Wiki Guide - IGN
Portal 2 PS3: Redeeming the PC copy - YouTube
Does anyone know the name of the PS3 menu theme for Portal 2? : r/Portal
PS3 Steam Portal 2 - YouTube
Portal 2 on PS3: How to redeem the free Steam copy for your PC
Buy Portal 2 PS3, get PC/Mac version free & Steam support – Destructoid
Portal PS3 And Steam Code Can Be Used Separately | N4G
Valve's Erik Wolpaw on Portal 2's difficulty, PS3 Steam features | Engadget
Buy Portal 2 PS3 Game Code Compare Prices
Portal 2 PS3 Edition To Have Cross-Platform Play, Other Steam Features | TechCrunch
Valve: "Playstation 3 and PC cloud saves are separate and cannot be shared". I'm angered by how often cross platform save sharing in Portal 2 was reported (I'm looking at you, Game
Portal 2 on PS3 features cross-platform chat, multiplayer and a free Steam copy | Engadget
Steam for PS3 Portal 2 detailed - GameSpot
Portal 2 PS3 code anyone? Enjoy. : r/gaming
How Does Steam Work On the PS3? - GameRevolution
Portal 2 to have PC & PS3 Co-op - SteamUnpowered
Valve Details Steam Features for Portal 2 on PS3 - The Escapist
Valve Reveals Portal 2 for PlayStation 3: Steam Details – PlayStation.Blog
Steam's The Real Deal For PS3 Portal 2 | TechCrunch
Portal 2 - Wikipedia
Is Sony thinking about buying Valve and Steam for the PlayStation 5?
Portal 2 for PC or Mac Computer digital code only | eBay
Valve talks Portal 2 on PlayStation 3, Steam on 360 | Ars Technica
