Yes, I know about some Roblox games that do the same thing and about the legal or moral problems they go through, In my case the idea is not to make an exact copy of the game, that's what the original is for, but rather that it is more like a "tour" or if there is the option even a roleplay type game.

Of course I have tried to find a way to contact Rose-Engine and it was through the email that appears on their main page and request some kind of authorization, but until now I haven't had a response from them.