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 +
Sony: PS4 and PS3 cross-platform gameplay 'technically possible' | TechRadar
Dragons Crown Update Lets PS3, Vita, & PS4 Play Together
![Sony ALLOWS PS4 Cross Play. PS4 Pro's Selling Out? PS3 Games Getting Server Shutdown. - [LTPS #328] - YouTube](https://i.ytimg.com/vi/1Xt0zlNAXpc/hqdefault.jpg "Sony ALLOWS PS4 Cross Play. PS4 Pro's Selling Out? PS3 Games Getting Server Shutdown. - [LTPS #328] - YouTube")
Sony ALLOWS PS4 Cross Play. PS4 Pro's Selling Out? PS3 Games Getting Server Shutdown. - [LTPS #328] - YouTube
DCUO on PS4 will allow cross-play with PS3 - GameSpot
All PS5, PS4 Crossplay Games | Push Square
Games with crossplay on PS3 - cross play games · Crossplayable Games
PS Vita and PS3 Cross Platform Features Explained | XTREME PSVita
Games with crossplay on PS3 - cross play games · Crossplayable Games
PS3 & Vita Cross-Play Games - Giant Bomb
Can you play PS4 games on a PS3 console? - Quora
8 ways to fix the PlayStation 3
Easy Cross Buy Platinums (Vita and PS4) - Nerdburglars Gaming
Games with crossplay on PS3 - cross play games · Crossplayable Games
Bungie Explains Destiny Cross Platform Play on PS3/PS4 Isn't Happening : r/DestinyTheGame
/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
Cross-platform play - Wikipedia
Amazon.com: PlayStation All-Stars Battle Royale : Sony Computer Entertainment America: Video Games
Can You Play PS3 Games on a PS4?
Inside PS Vita: Cross Play - YouTube
Sony To Issue Refunds Over Misleading PS Vita Ads – Consumerist
DC Universe Online Now Features Cross-Play on PS4, PS3 | Push Square
PS4/XB1 Adoption Rate Is Well Ahead of PS3/360 in the UK; Significant Further Hardware Sales Expected
Report: Guilty Gear Xrd Sign boasts PS3, PS4 cross-play | Engadget
