(credit: Aurich x Getty)

Back in March, Microsoft announced that it would allow generic cross-platform play on its Xbox Live network. The move was essentially a public challenge for Sony to similarly open up the PlayStation Network, allowing for multiplayer matches involving more than one type of console for what would essentially be the first time.

Now, some major game developers are stressing that any technical hurdles to this cross-platform play have been overcome. Sony’s walled-garden policy is the final obstacle to allowing play between Xbox and PlayStation systems, they say. “Right now, we’re literally at the point where all we need is the go-ahead on the Sony side and we can, in less than a business day, turn [cross-platform play] on and have it up and working, no problem,” Jeremy Dunham, vice president of Rocket League developer Psyonix told IGN in a recent interview. “It’d literally take a few hours to propagate throughout the whole world, so really we’re just waiting on the permission to do so… It could be tomorrow, it could be longer than that. We just don’t know—we’re anxiously awaiting that, just like the rest of our fans.”

Rocket League was one of the first games that announced cross-platform play between the Xbox One and Windows 10 (well before Microsoft’s recent Play Anywhere initiative), so it’s not that surprising the title is ready to link in with the PS4 as well. But The Witcher maker CD Projekt says it’s also simply awaiting Sony’s go-ahead for a cross-platform version of the upcoming Gwent card game.