Needs to be a law against the taking away of product functionality after the sale, even if it's contractual/EULA. A ban should never take the game away from the owner, and in cases where it does then they need to be refunded (treble damages on top of license, lawyer, and court fees if it takes a judgment to induce the refund). Getting banned on Steam, say, in the sense that all of one's purchases are invalidated should be impossible legally. In cases where an account is prevented from login, items and inventory must still be accessible for trade as those represent real time effort put in by a paying customer. Want to enforce your code of ethics in a multiplayer game? Can't charge for the game or users legally have rights against bans, and bans must follow a proportionality continuum and you must have a human-attended cost capped (at license cost, and only on loss) appeals tribunal system with record.