Epic Games is now suing Samsung and Google in a US District Court as part of its legal crusade to right perceived wrongs in the App ecosystem that's previously seen it sue Apple and Google over store commissions. At issue is an Auto Blocker that creates hurdles a user must overcome to install apps from third-party marketplaces, which Epic says is to prevent competition more than it is to protect users. Here are some details from Epic's post on the topic:

We are filing a court case against Google and Samsung over coordinated efforts to block competition in app distribution on Samsung devices with Samsung’s default-on Auto Blocker feature. Auto Blocker is the latest in a long series of dealings in which Google and Samsung have agreed not to compete to protect Google’s monopoly power. Auto Blocker cements the Google Play Store as the only viable way to get apps on Samsung devices, blocking every other store from competing on a level playing field.

Our litigation alleges that Samsung’s recent implementation of the Auto Blocker feature was intentionally crafted in coordination with Google to preemptively undermine the U.S. District Court’s remedy following the jury’s verdict in Epic’s case against Google. The jury found that Google’s app store practices are illegal, including the unlawful agreements Google enters into with phone manufacturers such as Samsung.

Allowing this coordinated illegal anticompetitive dealing to proceed hurts developers and consumers and undermines both the jury’s verdict and regulatory and legislative progress around the world.