They can offer lower prices on other platforms. If I dual publish my game on the Epic Games Store and Steam, the pricing can be totally different. The rule is t

They can offer lower prices on other platforms. If I dual publish my game on the Epic Games Store and Steam, the pricing can be totally different. The rule is that I can't sell Steam Keys (basically a coupon redeemable for the game on Steam) for cheaper than I sell the game on Steam's marketplace. IMO, that's an important distinction. If they were demanding price parity with competing storefronts with their own launchers and DRM and whatnot, there would be a compelling argument for an antitrust case. The reality is not nearly that bad.