User:Louis/Microsoft's AI DMCA takedowns against Minecraft-like games

A DMCA takedown pulled the solo-developed voxel game Allumeria off Steam in February 2026, and the notice named Microsoft as the copyright owner of a rival's independent code. According to PC Gamer, the notice stated that Judith Woodward, on behalf of Microsoft Corporation, alleges that Microsoft is the copyright owner of the game's content, and days later Microsoft has withdrawn the copyright claim with no action needed on my part. The Allumeria developer attributed the takedown to an automated claiming service, Tracer, and the Luanti open-source project later attributed a takedown of its own to the same vendor. Tracer, whose legal name is Focus IP, Inc. dba Tracer, is an AI brand-protection vendor that advertises cutting takedown time to 9 days, an 85% reduction, and 44% More Takedowns Month-Over-Month. The copyright theory behind a takedown that targets a voxel building game does not hold up, because 17 U.S.C. § 102(b) denies copyright to any idea, procedure, process, system, method of operation, and a voxel building game is exactly that: an idea and a set of mechanics that copyright leaves open to everyone.

Allumeria's removal from Steam

Allumeria is a Minecraft-like game by a solo developer who posts as "unomelon." In February 2026, a DMCA notice forced it off Steam, and the developer wrote, I genuinely do not know what to do. As reported by PC Gamer, the notice claimed Microsoft owned the copyright in Allumeria's content, and the developer of another Minecraft-like, Vintage Story, described the claim as ridiculous. Notebookcheck independently reported the same notice language, again quoting Judith Woodward, on behalf of Microsoft Corporation. Microsoft then withdrew the claim with no action needed on my part, and Allumeria's developer prepared a counter-notice under which, if Microsoft did not respond with legal proceedings within 10 days, the game would be reinstated on Steam. A copyright owner who withdraws a claim it filed against a game with no shared code has not lost a fight; it has abandoned a claim it should not have made.

Tracer's automated takedown model

Tracer markets what it calls Human-in-the-Loop AI, and its selling point is volume and speed. Its own marketing blog states:

we've slashed the takedown time from an industry average of 60 days to just 9 days. This remarkable 85% reduction in time ensures that your brand's reputation is safeguarded swiftly, minimizing the impact of brand abuse and IP infringement.

The same page advertises review times six times faster than traditional methods and 44% More Takedowns Month-Over-Month. A system tuned to fire more notices faster is tuned for the wrong metric. The number that matters in copyright enforcement is not how fast a notice goes out; it is whether the underlying claim is true.

Tracer's marketing page advertises cutting takedown time to 9 days, an 85% reduction, and 44% More Takedowns Month-Over-Month.

Registration TX 8-192-097

The registration these takedowns lean on is documented in Mojang's own verified filing. On February 22, 2023, Mojang filed a DMCA notice in GitHub's official transparency repository citing Minecraft Reg Number: 4252394 (trademark) and Reg Number: TX 8-192-097 (copyright). That single copyright registration, TX 8-192-097, covers Minecraft Gameplay & Imagery. It is the registration a takedown must match. A notice that points TX 8-192-097 at a game sharing only a voxel aesthetic asserts that Microsoft's registration reaches the look of blocky, cube-based worlds in general. It does not.

Mojang's February 22, 2023 DMCA notice in GitHub's transparency repository cites copyright registration TX 8-192-097 and trademark registration 4252394 for Minecraft.

Copyright's limits on game genres

What copyright does and does not protect in a game

Game element	Copyright status	Basis
Specific art, textures, mobs, and interface	Protectable expression	Tetris Holding, LLC v. Xio Interactive, Inc.
Genre, rules, and building mechanics	Not protectable	17 U.S.C. § 102(b); Tetris
The idea of mining and placing cubes	Not protectable	17 U.S.C. § 102(b); Atari, Inc. v. Amusement World, Inc.

No copyright in ideas, systems, or methods of operation

Federal copyright draws a hard line between an idea and the specific expression of it. 17 U.S.C. § 102(b) states:

In no case does copyright protection for an original work of authorship extend to any idea, procedure, process, system, method of operation, concept, principle, or discovery.

17 U.S.C. § 102(b) withholds copyright protection from any idea, procedure, process, system, method of operation.

A game genre, a building mechanic, and the concept of mining and placing cubes are ideas, procedures, and methods of operation. In Atari, Inc. v. Amusement World, Inc., 547 F. Supp. 222 (D. Md. 1981), the court held that a copyright did not prevent others from using the idea of a game with asteroids and protected only the arbitrary design features that makes plaintiff's expression of this idea unique. Copying the idea of a voxel survival game is the Allumeria situation, and under Atari that is not infringement.

Rules and mechanics versus visual expression

Minecraft's specific art, textures, mobs, and interface are protectable expression. Its genre is not. Tetris Holding, LLC v. Xio Interactive, Inc., 863 F. Supp. 2d 394 (D.N.J. 2012), drew exactly this line: the court held that the style, design, shape, and movement of the pieces are expression, while the rules and functions of the game are not protectable. Tetris won because the defendant copied the specific audiovisual look almost pixel for pixel, not because it used falling-block rules. A takedown premised on a shared genre inverts Tetris: it claims the unprotectable half (mechanics, method of building) while ignoring that the protected half (Minecraft's actual art and assets) is what a valid claim would have to identify.

Duty to consider fair use

A copyright holder cannot fire a takedown and sort out validity later. In Lenz v. Universal Music Corp., 815 F.3d 1145 (9th Cir. 2016), the Ninth Circuit held:

a copyright holder must consider the existence of fair use before sending a takedown notification under § 512(c).

A pipeline advertised to maximize takedown volume and speed is structurally in tension with a duty to weigh each use, case by case, before filing. Lenz says nothing about automation itself; it says the holder must form a good-faith belief first, and an assembly line built for throughput is not built to do that.

Liability for misrepresentation

The DMCA is not a free swing. 17 U.S.C. § 512(f) makes any person who knowingly materially misrepresents that material is infringing liable for any damages, including costs and attorneys' fees, incurred by the alleged infringer. A claim that Microsoft owns the copyright in a rival's independent game, filed and then withdrawn once challenged, is the kind of representation § 512(f) exists to deter.

Voxel building predates Minecraft

The genre is not Microsoft's invention, and Minecraft's own creator said so. On his dev blog, Markus "Notch" Persson credited an earlier game, Infiniminer, as the one he wanted to make:

But then I found Infiniminer. My god, I realized that that was the game I wanted to do.

Persson built Minecraft reusing some art and code, and a company whose flagship game began as a stated homage to an earlier block-mining game cannot own the block-mining idea it borrowed.

Luanti's Google Play removal

The pattern extends beyond Steam. According to the Luanti project blog, the open-source Luanti (formerly Minetest) Android app was removed from Google Play in August 2026 after a DMCA notice, attributed by the project to Tracer, that quoted US Reg. #TX 8-192-097; the project reported the app used no Minecraft assets. The complaint was logged in Google's Lumen transparency database as notice #93778051 and later marked Notice Rescinded. The § 512(g) put-back window runs not less than 10, nor more than 14, business days after a counter notice, so even a wrongful notice a developer beats can keep a free and open-source project offline for weeks, and a repeated notice can stretch that far longer.

The Luanti project's blog states its Android app is not available on the Google Play Store over a DMCA notice the project attributes to Tracer.

Google's Lumen transparency record for the Luanti complaint logs the notice status as Notice Rescinded.

Costs to open-source and indie developers

A solo developer or a volunteer FOSS project cannot litigate against Microsoft over a genre. The counter-notice exists, but it takes 10 to 14 business days and risks a lawsuit the developer cannot afford to lose. An automated system that files more notices faster shifts that cost onto the smallest targets, who lose store placement, revenue, and users while a claim that § 102(b), Atari, and Tetris all say is unprotectable works its way to a quiet withdrawal.

See also

• Minecraft
• Microsoft
• Mojang
• Digital Millennium Copyright Act