I was thinking to create a platform for gamers to buy and sell in-game items for XMR, while ensuring the transaction via escrow. What do you think? do you have a better suggestion?
Not a bad idea, but i already see some of them and even tho they are not using xmr but still they're using crypto and altcoin such as bitcoin and litecoin. It will hard for you to grow that platform if you want to build it except you have something different in your platform.
You can stick with your idea to create platform buy and sell, or you can create something like this site
https://tradeit.gg and you can add betting features in it or you can just combine all of them.
what would you like to see?
TBH, i want something like streamlabs donation but with cryptocurrency instead of paypal, since i never found something like that. But i know it will hard to create such platform.