@Edent ps4? but it came up in the store carousel on my son's ps5 last night so assume fully backwards compatible. we play on pc/mobile - it's a "one character" game but on pc at least a second controller means 2p co-op for all the action scenes (scavenging, combat) so i also assume that's the same here https://store.playstation.com/en-us/product/UP0667-CUSA02791_00-ORGANTRAILCOMPED