Apple removes Fortnite, Epic Games’ popular battle royale game, from its App Store, and blocks “rival” game streaming platforms from iOS. Fortnite pretty much immediately filed suit, but there’s much more to unpack in this quest for a piece of the mobile game revenue pie. Note that last year 2.5 billion people played mobile games, propelling mobile game revenues to amount to nearly 75% of all in-app spending. 30% of that revenue is what Apple (and Google) are fighting to capture, at the expense, some would argue, of game developers.