Steam charges 20% to games that sell over $50 million, and 25% over $10 million. Even though those games tend to be bigger and use more bandwidth, they were ru

Steam charges 20% to games that sell over $50 million, and 25% over $10 million. Even though those games tend to be bigger and use more bandwidth, they were running into the problem that some of those companies were managing to get bargaining power (Valve announced the change around two days before the launch of the Epic Games store with a 12% cut). Bandwidth isn't actually much of a significant cost.