Portal 2 on PS3 features cross-platform chat, multiplayer and a free Steam copy | Engadget
Portal 2 to have PC & PS3 Co-op - SteamUnpowered
Valve hopes Steam for PS3 will support more than Portal 2 – Destructoid
Portal 2 PS3: Redeeming the PC copy - YouTube
Valve bringing Steam-supported Portal 2 to PS3 in April - CNET
Portal 2 PS3 code anyone? Enjoy. : r/gaming
Steam Community :: Guide :: How to play Local Co-op with Controller + Keyboard
Valve's Erik Wolpaw on Portal 2's difficulty, PS3 Steam features | Engadget
Steam On PS3: It's A Doddle | TheSixthAxis
Buy Portal 2 for PS3 and get the Mac version for free
Valve talks Portal 2 on PlayStation 3, Steam on 360 | Ars Technica
PS3 Cheats - Portal 2 Wiki Guide - IGN
Is Sony thinking about buying Valve and Steam for the PlayStation 5?
Just posting again from mildly interesting because someone said it would fit here anyway I just realised my ps3 copy of portal 2 lets you play on steam for free. : r/Portal
Portal 2 on PS3 was the only Valve game on console to be cross play and cross progressions with PC via logging into steam on your PS3 and you'd get steam achievements +
PS3 Steam Portal 2 - YouTube
Steam's The Real Deal For PS3 Portal 2 | TechCrunch
Buy Portal 2 PS3 Game Code Compare Prices
Portal 2 - Wikipedia
Portal 2 PS3 Edition To Have Cross-Platform Play, Other Steam Features | TechCrunch
How Does Steam Work On the PS3? - GameRevolution
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: Pretty Much Every PS3 Question Answered (and that Cake thing, too) – PlayStation.Blog
Portal 2 • PS3 – Mikes Game Shop
PC, PS3 Owners Can Play Portal 2 Together | WIRED
Portal 2 on PS3: How to redeem the free Steam copy for your PC
Valve Reveals Portal 2 for PlayStation 3: Steam Details – PlayStation.Blog
Portal 2: Pretty Much Every PS3 Question Answered (and that Cake thing, too) – PlayStation.Blog
