Portal and Portal 2 coming to the Nintendo Switch : r/Steam
Interview: Valve's DJ Powers on Portal 2, PS3 development - Gematsu
Steam details revealed for Portal 2 on PS3 - Gematsu
Sony Showcases Cross Play Gaming Between PS Vita And PS3; Cross-Controller DLCs For Deep Mobile-Console Integration | Redmond Pie
PS3 PSVITA Dead Or Alive 5 Cross Play Pack Koei Tecmo Used | eBay
Dragons Crown Update Lets PS3, Vita, & PS4 Play Together
Portal 2 first game to have cross platform multiplayer
Found My Old PS3 Portal 2 Disk : r/valve
Portal 2 - Wikipedia
Steam Details for Portal 2 on PS3 RevealedPS3Blog.net
:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/22058127/ps4_wm.0.jpg "Sony: PS3 and PS4 cross-play is 'technically possible' (update) - Polygon")
Sony: PS3 and PS4 cross-play is 'technically possible' (update) - Polygon
Portal 2: Pretty Much Every PS3 Question Answered (and that Cake thing, too) – PlayStation.Blog
PS3 & Vita Cross-Play Games - Giant Bomb
Portal 2: Pretty Much Every PS3 Question Answered (and that Cake thing, too) – PlayStation.Blog
Portal Companion Collection review --- This was a triumph — GAMINGTREND
Steam details revealed for Portal 2 on PS3 - Gematsu
PlayStation boss says Sony wants more cross-play titles but recent actions may suggest otherwise
Portal 2 Co op Pt 5 Cross Play (PS3 & PC) " Insert Disc " - YouTube
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 +
Portal 2 PS3 Edition To Have Cross-Platform Play, Other Steam Features | TechCrunch
Portal 2 In Motion: Free Co-op Campaign Out Today – PlayStation.Blog
Portal Companion Collection review --- This was a triumph — GAMINGTREND
Portal 2 gets cross-platform play across PC, Mac and PlayStation 3 | WIRED UK
Half-Life: Alyx Mod Brings Portal 2 Test Chambers To Life
