Why can't I play Demon's Souls on Ps4 when it's a ps3 greatest hits? Aren't all the greatest hits playable on ps plus? And why is there a remake for the PS5
DC Universe Online Now Features Cross-Play on PS4, PS3 | Push Square
Battlefield PlayStation PS4 PS3 Games - Choose Your Game | eBay
Can You Play PS3 Games on a PS4?
Can you play PS3 games on PS4? PlayStation 4 backwards compatibility explained