A federal judge in California has spoken out against Epic Games during a virtual hearing on Monday, according to reports from
She also recommends that the case between Epic and Apple be judged by a jury.
Judge Yvonne Gonzalez Rogers again ruled on Monday that Fortnite did not have to return to the App Store.
Apple pulled the game from its app store in mid-August, after Epic Games built in its own payment system to bypass Apple's commission.
That's against the rules of Apple's platform.
Epic then sued Apple.
According to Rogers, Epic knew it would breach contract when the company built the payment system into its app.
"It's very simple: you knew direct payments were not allowed and you did it anyway," the judge told Epic's lawyer.
"There are people who see you as heroes for what you did, but it remains unfair."
Epic said it had deliberately broken the rules, but said it could not agree to Apple's anti-competitive contract.
According to Epic, Apple's 30 percent commission is too high, but the company has a monopoly position that prevents developers from getting out of it.
Apple also says millions of iOS players have been affected by Apple's decision to remove Fortnite from the store.
The judge said people have plenty of other options to play the game.
"Shielded platforms like this have been around for decades. Nintendo, Sony and Microsoft have it too. You're asking me to ignore how the industry works."
'Epic wants to unleash a developer revolution'
Apple said at the hearing that Epic CEO Tim Sweeney is trying to unleash a developer revolution to harm Apple's revenue model.
"Epic wants others to break their contracts and sneak in software to get around the rules."
Rogers does not expect the lawsuit between Epic and Apple to take place until July 2021 at the earliest.
At the hearing she said it would be good if a jury would consider the case.
The judge previously ruled in a preliminary ruling that Apple could ban Fortnite from the App Store.
Apple was not allowed to revoke Epic's developer license.
Epic would then not be able to maintain its platform Unreal Engine, which also runs many other games.
According to the judge, this would lead to "havoc" among bystanders.