Players sell items by creating a listing, with a fixed price. Buyers are able to purchase the items by spending MSTR or other crypto currency types like BNB, USDT, BUSD, ... from his wallet. Other side, players can make an offer to deal with the owner by other price that they want. Upon confirmation of the transaction on the blockchain, the settlement is settled instantaneously. The Seller receives tokens in his wallet, and the items is transferred to the Buyer.