Considering the game is built in Unreal Engine, I doubt it. The game only looks like it could run on the PSX because of the artistic representation. This game is using technology far past what the actual PSX or a PSX Emulator would probably be able to handle. That's why it's a self contained application.
Viewing post in Inquiry for the better educated among us.
Uhh, well that is not exactly how it works. They would have needed to build the game using appropriate resources for use on a PSX or PSX emulator to start with. They didn't. They used modern resources and made it look old. That's it. Unfortunately what you are asking / suggesting is that the developer go back and remake the "demake" again in old, outdated standards. It's just not going to happen. Sorry!
I apologize for any lack of clarity on my part. I was not asking for them to change how they’re doing things. I think it’s great how it is!
I was replying specifically to the “That’s why it’s a self contained application.” part. Maybe a bit confusingly, and pedantically on my part. Was just trying to say this isn’t strictly a requirement, nor a smoking gun. It being stand-alone is a hint that it’s actually a PC game w/ masquerading graphics (and I am well aware that this game is that, and was before I even came to the page). Just that it’s technically possible to skin an emulator so it looks like you’re running a single game natively.
But as you said, that would have required them to have actually made a PSX game to begin with. Which they didn’t. They made a PC game that just looks like a PSX game. It is in no way compatible. Totally get that on my end.
Maybe my clarification didn’t help the convo :)