Help about making a Gaming Shop app

Hello everyone,
I’m Mahi. I wanted to make an Gaming shopping app like SEAGM. I want to sell Free Fire Diamonds, In-Game things etc.
So, if anyone can help me making this Gaming Shop app, then i will be very grateful.

What is the advantage of user to buy these things from your app? What offer you give to them because they also buy them from official games store

I offer them buying diamonds at a really low price and 100% secured way. And also cart option. And in official game stores we can’t buy diamond by bkash, nagad or rocket(mobile payments). But in my app they can buy it with these transaction systems

What have you tried so far?

Nothing​:slightly_smiling_face: but trying to do something