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Microsoft/TracerAI withdraws copyright takedown against Luanti

read original get Programming in Lua" by Roberto Ierusalimschy → more articles
Why This Matters

Microsoft, via its brand-protection vendor Tracer AI, has withdrawn a DMCA takedown that briefly pulled the open-source voxel game engine Luanti from Google Play, restoring the app faster than a counter-notice would have. The episode shows how automated or outsourced IP enforcement can knock legitimate open-source projects offline, with volunteer maintainers bearing the cost of fighting back. The irony is sharp: Microsoft Research itself uses Luanti as a testbed for AI and world-model experiments.

Key Takeaways
Worth a Look

Programming in Lua" by Roberto Ierusalimschy — Luanti's expressive Lua API is exactly what makes it a favorite for modders and even Microsoft researchers, and this book is written by Lua's own lead designer. It's the go-to reference for getting comfortable with the language before you start scripting your own voxel worlds and mods.

See Programming in Lua" by Roberto Ierusalimschy on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.

Previously, we announced that Microsoft via Tracer AI had filed a DMCA notice against Luanti’s Google Play listing, alleging that Luanti infringed upon Minecraft’s copyright. The notice has been rescinded and the app has been reinstated on the Play Store.

The notice being rescinded means that the app has been reinstated on the Play Store sooner than if we had to wait for the counter-notice period. It also indicates that they have dropped this case and do not plan to file a lawsuit.

In a remarkable twist, after the previous post, we discovered that Microsoft actually uses Luanti for research:

Project VEGA - Microsoft Research & XBOX: For the prototypes and demonstrations in this article, our testbed is Luanti, an open-source voxel game platform.

Beyond Pixel Histories: World Models with Persistent 3D State - Microsoft Research & University of Edinburgh: We prefer Luanti over Minecraft due to its open-source design and expressive Lua API, which facilitates data collection and experimentation.

These projects highlight Luanti’s potential as an open, flexible, and easy-to-use platform that satisfies a wide diversity of use cases and audiences.

While we are glad that this situation has been resolved fairly promptly, it still consumed a fair amount of our time to fight it. We would like to thank our users, readers, and others for their support. We hope that this situation does not happen for a third time, and that future updates about the project are about new features rather than legal matters.