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 & Vita Cross-Play Games - Giant Bomb
What PS3 games are cross platform with a PC? - Quora
52 Best Cross-Platform Games for PS3
52 Best Cross-Platform Games for PS3
Helldivers coming to PS4, PS3 and Vita with Cross-Play | Engadget
Sony Showcases Cross Play Gaming Between PS Vita And PS3; Cross-Controller DLCs For Deep Mobile-Console Integration | Redmond Pie
PS3 leading cross-platform software development? Haze and Devil May Cry say yes – Destructoid
Games with crossplay on PS3 - cross play games · Crossplayable Games
: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
Bungie explains why Destiny doesn't have PS4-to-PS3, Xbox One-to-360 cross-platform multiplayer | VentureBeat
8 Best 2 Player PS3 Games - TechShout
Xbox 360 vs. PS3: Round 9 (Multi-Platform Games) - YouTube
Amazon.com: Dragon's Crown - Playstation 3 : Atlus U S A Inc: Video Games
Best crossplay games: play with friends across platforms | TechRadar
PlayStation 3 - Wikipedia
Warhawk (2007 video game) - Wikipedia
52 Best Cross-Platform Games for PS3
/cdn.vox-cdn.com/uploads/chorus_image/image/35396670/14454459905_2c30ec09c5_o.0.jpg "Rogue Legacy reborn with cross-platform features on PS3, PS4 and Vita July 29 - Polygon")
Rogue Legacy reborn with cross-platform features on PS3, PS4 and Vita July 29 - Polygon
SONY COMPUTER ENTERTAINMENT TO DELIVER “CROSS PLATFORM FEATURE” TO ENHANCE CROSS PLATFORM PLAY BETWEEN PLAYSTATION®3 AND PLAYSTATION®VITA; SUPPORTING TITLES TO BE RELEASED STARTING LATER THIS SUMMER
Every Cross Platform & Crossplay Game (October 2022) - PS5, Xbox Series X, PC, PS4, Xbox One, Nintendo Switch) - VideoGamer.com
Dungeon Defenders to feature PS3/NGP cross-platform play - Gematsu
All cross-platform games (PS5, Xbox Series X, Switch, PC, and more) | Digital Trends
