Epic Games has filed a lawsuit against Google and Samsung in federal court in San Francisco, marking its second legal action in four years related to app store practices.

The lawsuit alleges that Samsung's new 'Auto Blocker' feature is hindering users from downloading apps directly from Epic's website, which Epic claims is an obstruction of competition.

While CEO Tim Sweeney suggests potential collusion between Google and Samsung regarding this feature, he admits there is no direct evidence to support this claim.

As of now, Google and Samsung have not publicly responded to the allegations, and legal proceedings are expected to continue.

Epic's ongoing legal battles highlight the challenges of regulating powerful tech companies that resist competition and maintain significant control over app distribution.

The outcome of this lawsuit could significantly impact the mobile app economy, potentially costing Google billions in revenue and allowing for third-party app stores on Android devices.

A previous jury ruling found that Google's agreements with device manufacturers to limit competition are illegal, a decision Epic is determined to uphold.

The complaint emphasizes that Google's Play Store is pre-installed on most Android smartphones and accounts for 80% of app downloads, reinforcing its dominance in the market.

Epic contends that both Google and Samsung recognize Fortnite as a legitimate app, noting its past availability on Google Play and collaborations with Samsung.

Sweeney argues that the lawsuit is intended to benefit all developers, not just Epic Games, framing it as part of a broader fight for fair competition.

Despite lacking direct evidence of collaboration, Epic's claims are supported by previous communications suggesting Google's ongoing efforts to limit competition.

Epic's own mobile app store, launched recently, has achieved over 10 million installations but is falling short of its year-end target of 100 million, largely due to the obstacles posed by the Auto Blocker.