Hi

I'm making a horror RPG in godot in the style of the old classics like Ao Oni or Mad Father

I was wondering what a good resolution would be

Any suggestions?

Mad Father has a 640x480 resolution, though most modern games run on 1920x1080. I think most players prefer a higher resolution, but I think the best thing to do is to try out different resolutions on your own and decide what works best for your game.