An Idea for a game

Greetings everyone,
Brand new to the Unreal forums and was led here by sheer curiosity.
I want to make a game, but have no idea where to start. In fact I have
no idea where to start my forum as I thought this would be a great place, please correct me if I’m wrong.

As for the game it’s of the Gundam franchise I wish to buy or obtain legal permission to make the game.
The game itself is one thing but the custom controller are of my design. I would just like feed back as if this is a good idea or project to do or maybe I should give up or maybe have information on gaining legal permission to make this game and thanks again everyone hot having me on the forums.