Systems and methods for facilitating transactions of virtual items between users of an online game are disclosed. Exemplary implementations may: receive a sales request that indicates a selling user will be offering for sale a particular virtual item from a seller's inventory through an online sales platform; assign the ownership of the particular virtual item temporarily to a holding account; publish a sales listing of the particular virtual item on the online sales platform; receive sales information from the online sales platform indicating whether the particular virtual item has been purchased; assign the ownership of the particular virtual item to the buyer's account; and transfer at least a portion of a sales amount received from the buying user to the seller's account.