Since our company is involved in the creation of certain games, we would like to create game assets that will allow us to sell and buy on the blockchain without any problems. Who will help in this matter?

Well, if you have such specialists working for you, then maybe you can put this task in front of them? But if for some reason they can't do it, it makes sense to try to turn to web3 smart contracts developers. I'm sure they can handle your task. Their website is https://pharosproduction.com/ I think you will get exactly what you want.