This didn't exactly take us with surprise. Recently the trophy list for Inside on PlayStation 4 was listed on Exophase and we took the liberty of treating that as a strong indication of the title getting a release on Sony's platform very soon.
Now it's been confirmed by Sony themselves on Twitter. The game will launch on PlayStation 4 on August 23.
Anyone who's read our review will know that it comes highly recommended. So there's good news all around as 40+ million PS4 owners will soon be able to play one of the most interesting releases of the summer.