The past month has exposed a sharp contradiction in the games industry. New AI systems, led in this discussion by Claude Opus 5.5, have made software decompilation dramatically faster. Projects that once required months or years can now appear daily as browser ports and supposed native PC recreations.
That has prompted plenty of discussion about karma. Some players see the current wave as an uncomfortable consequence of publishers openly promoting their own AI use. The argument is not that copyright infringement suddenly becomes acceptable, but that the same technology is now creating problems for companies that helped normalise it.
There is plenty of bias in the debate. Some connect PlayStation emulation with Sony’s retreat from physical media, while others view Nintendo’s legal history as the reason its comparatively ambivalent position on generative AI receives such a hostile reading.
The more useful issue, however, is consistency. Microsoft and Epic Games have promoted or adopted AI while also using copyright enforcement against AI-assisted recreations of their own games.
Indie developers are already being hit
Hundreds of DMCA notices have followed the recent surge in AI-generated recreations. Independent games have been prominent targets. GitHub’s DMCA records include notices involving open-source versions of Mega Crit’s Slay the Spire 2, Maddy Makes Games’ Celeste, and Ludeon Studios’ RimWorld during the four weeks covered.
These examples matter because the games themselves contain no generative-AI material. They are projects that were open-sourced without their developers’ permission, leaving creators to defend work they did not choose to release in that form.
Epic issued a DMCA notice against an AI-assisted browser recreation of Fortnite on October 10. Microsoft has also issued multiple notices involving browser projects based on Minecraft, Call of Duty and Halo. At least six Call of Duty web ports were reportedly removed during the same period.
Epic’s own relationship with AI has been difficult to overlook. Examples cited include an AI-first launcher that appeared on October 14 and the company’s use of generative tools. A social-media post said Epic removed a browser project that allowed a recreation of Fortnite to be played online and issued copyright complaints against posts featuring it.
Epic Games took down a recent project that allowed Fortnite (recreation) to be playable through a web browser.
They also DMCA (copyright) almost every post featuring it.
Epic’s position raises uncomfortable questions
In a June 2026 interview with PC Gamer, Epic chief Tim Sweeney criticised early AI companies for allegedly downloading terabytes of data from BitTorrent. He described that practice as unacceptable, but referred to those companies in the past tense.
That distinction matters because the underlying models may continue to benefit from disputed training material. No major AI company has yet been required to carry out model disgorgement, a remedy that would force deletion of models created using stolen data.
The same interview noted that Epic artists use Google’s Gemini Nano Banana and OpenAI’s GPT Image. Both Google Gemini and OpenAI face lawsuits alleging that material was scraped from piracy sources.
Epic could have changed its tools after that interview. A report dated October 12 said the company’s planned “AI first” Disney and Marvel game would use Anthropic’s Claude. Anthropic agreed in September 2025 to pay $1.5 billion over training models with illegally obtained BitTorrent data. Although the company had to delete the stolen data, it was not required to delete or rebuild the models trained on it.
Epic’s Terms of Service prohibit users from using code or content extracted from its licensed products as training input for generative AI systems, including prompt input where the system trains on that data. The apparent tension is straightforward: AI trained on disputed material may be used by the company, while users are prohibited from training on Epic’s material.
Microsoft’s changing message on AI
Microsoft has committed $80 billion per year to AI data centres. Activision has also used AI-generated artwork in Call of Duty: Black Ops 6 and Call of Duty: Black Ops 7.
At the same time, Microsoft has pursued browser projects connected with its major franchises. Xbox CEO Asha Sharma said in an Xbox Labs announcement on October 13 that the company remained committed to being a responsible steward of intellectual property.
Today we’re standing up Xbox Labs. The first video games emerged some 75 years ago. In the time since, there have been booms and busts, but every year there are more great games to play, more devices to play them on, and more ways to create.
That claim sits awkwardly beside a Microsoft senior product manager’s earlier suggestion that users could employ a “well-known dataset” consisting of all seven Harry Potter books to create fan fiction. Microsoft later removed the guidance.
Internal Microsoft communications revealed during litigation were similarly blunt. Brent Hecht, the company’s director of applied sciences, described internet scraping by large language models as the “largest theft of labor in human history”. He also warned that creators generally had not consented to their work being used or received payment for it; Hecht’s comments were obtained during discovery.
Another internal memo warned that Microsoft’s AI strategy could create a “doom loop”, damaging both model performance and the wider web. It described the unusual risk of an end product undermining the economic foundations of the people supplying its training material.
Microsoft president Brad Smith has recently argued that Brad thinks it is concerning that washing machines face more safety rules than AI. CEO Satya Nadella now believes an authorised person should be able to pause or shut down a model during a task.
The real cost falls hardest on smaller studios
There is no strong case for allowing people to recreate Fortnite or Call of Duty through AI-assisted coding. Better regulation is also reasonable. The problem is the double standard, not a belief that large companies should lose control of their intellectual property.
Major publishers can repeatedly involve lawyers and rights teams. A self-publishing indie developer cannot absorb those costs so easily. The recent decompilation boom therefore threatens smaller studios most, even when the headline disputes involve billion-dollar owners.
For arcade enthusiasts, the distinction between legitimate restoration and unauthorised reproduction is important. Learning about the wider arcade industry and gaming news, selecting an appropriate cabinet through an arcade machine buying guide, or repairing authentic hardware with genuine arcade parts does not require taking somebody else’s game and releasing it without permission.
Likewise, people planning a hands-on cabinet project can explore DIY arcade kits while respecting the software rights attached to the games they choose to play.
This is not a defence of Microsoft or Epic. It is a defence of Mega Crit, Maddy Makes Games, Ludeon Studios and every independent developer who may now think twice before releasing a demo or opening a project to the public. They did not build the systems now being used against them, and they should not be expected to carry the legal and financial burden alone.
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