Mojang Summoned to Swedish Court Over Forced Microsoft Account Migration: The Class Action Explained

What happened: On October 7, 2026, Nacka District Court in Sweden summoned Mojang AB to respond, without delay, to class action T 5478-26. The case is brought by creator Kian Bröse on behalf of 2,845 players. It claims the forced migration from Mojang accounts to Microsoft accounts broke EU consumer and data protection law. It’s the first time the migration has been challenged in court. Mojang has not commented publicly.

• 2,845Players in the class
• 15,000 SEKDamages claimed per player
• $150K+Crowdfunded for the case
• T 5478-26Case number, Nacka District Court

The evidence and the claims

The case makes three core claims:

1. New terms without consent. Mojang added contract terms after purchase that restricted a game players already owned, without valid consumer consent.
2. Duress. Players had to move to Microsoft accounts or lose access to the game they paid for.
3. Unlawful data transfer. Personal data was moved to Microsoft and processed outside the EU without a proper legal basis.

The class asks for the migration to be reversed, for data to be processed only inside the EU, for terms added after purchase to be declared invalid, and for 15,000 SEK per participant under GDPR Article 82.

Who is affected

The class is narrow on purpose. To qualify, you must have bought Minecraft before December 10, 2013, lived in the EU or EEA at the time and been under 18. That describes the generation that grew up with Java Edition, many of whom were later pushed through the migration that Microsoft completed in 2023.

Players outside those criteria aren’t in this round. Organisers say about 180 late applications won’t count. The court corrected the participation list from 2,867 to 2,845 names.

How we got here

• December 3, 2024: Kian Bröse publishes a video accusing Mojang of breaching consumer law and its own EULA. He says the EULA changed 47 times without proper notice and that unpublished rules were enforced against creators. He opens a GoFundMe with Samuel “Perny” Somerkivi.
• 2025: the fund passes $150,000. The case narrows to the account migration under Sweden’s updated group-action rules.
• June 19, 2026: the participation list is locked.
• June 24, 2026: the filings are submitted to Nacka District Court. The case number is assigned the next day.
• July 23–30, 2026: the court gives its provisional approval and asks for clarifications.
• August 18, 2026: the court confirms it will email participants directly.
• September 4–25, 2026: participants are notified and have until September 25 to confirm.
• October 7, 2026: Mojang is summoned to respond.

Mojang’s reply

None in public so far. Mojang and Microsoft haven’t commented on the case. The organisers expect Mojang’s first formal response to include a motion to dismiss. Defenders of the migration argue that Microsoft gave players a multi-year window to move and that continuing to play amounts to accepting the new terms. The court will now weigh that argument.

What you should do now

• If you joined and confirmed by September 25: you don’t need to do anything. The court communicates with participants by email, so watch your inbox and check the timeline on lawsuit.gg.
• If you missed the deadline: you’re not in this round. Any later participation would depend on how the court handles certification.
• Want to check the paperwork yourself? Court documents in Swedish cases are public records, and you can request them directly from Nacka District Court using the case number.
• Expect a long wait. Certification alone could take months, and organisers estimated the full process at about a year.