Apple subpoenaed Valve in November as part of its ongoing litigation with Fortnite developer Epic Games, and it’s demanding that Valve provide extensive sales data for more than 400 games, according to a new filing (via PC Gamer).
The move comes amid Apple’s ongoing fight over Epic’s efforts to avoid paying iOS App Store fees. Apple argues that Valve’s data is necessary to calculate the size of the market of Epic’s “available distribution channels,” as Epic could theoretically offer its games through Steam in addition to other digital marketplaces. But the data is also immensely valuable in assessing the marketplace for games and apps — a space in which Apple’s iOS App Store continues to compete with Valve’s Steam marketplace.
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