Hideo Kojima doesn't know if Physint will release on PlayStation after Xbox picked up publishing duties, and hasn't "decided" if he'll use the Sony-owned Decima engine, either

Hideo Kojima says that Physint hasn't decided on its game engine yet, and he doesn't know if it'll still release on PlayStation following its move to Xbox. Xbox Game Studios is now working with Hideo Kojima and Kojima Productions on its Metal Gear spiritual successor, Physint, following Sony's decision to cancel the project. Reports had stated that the cancellation happened due to budget and timeline concerns, but Kojima Productions has since refuted these claims. However, both of Kojima Product