Epic Games continues a legal battle with Apple over Fortnite's removal from the App Store, and CEO Tim Sweeney is having a little fun while the process plays out. The developer did the unthinkable: promoting a rival game, and all to demonstrate the value of Unreal Engine for Apple users. It looks like this battle is going to get a lot weirder before it's over. That is, if it ever does end.

On August 28, Apple seemed to take a shot at Epic Games by promoting a massive new update for PUBG Mobile on iOS. Typically, Epic Games would see PUBG Mobile as its competition, but because the game does make use of Unreal Engine--which Apple is looking to cut off from iOS and Mac developers--Sweeney promoted the game, as well.

The passive-aggressive nature of the tweet certainly isn't lost on us, because if Apple does eventually cease Unreal Engine support on its devices, that would likely mean no more PUBG Mobile. Unreal is one of the most popular engines in the world, with support on nearly every device including mobile, PC, and consoles.