Your social media feed is packed with strange video game mashups: familiar characters in unfamiliar worlds, classic games running on unexpected hardware, and playable experiments that look impossible at first glance. The force behind much of this sudden flood is not AI-generated video. It is AI-assisted coding, and it is changing who can take apart, rebuild, and remix a game.
Anthropic’s Claude has become extremely good at decompiling video game code. That shift has pushed game modding from a slow technical craft toward something people can attempt in an evening, raising urgent questions about piracy, copyright, preservation, and the future of the industry.
From Binary Code to Playable Mashups
Games begin as readable code written by humans. That code is then compiled into binary 1s and 0s that a PC or console can understand. Decompiling reverses the process, revealing source code that people can edit, study, and rebuild.
Until now, decompiling demanded long hours and strong computing knowledge. Claude can now produce a game’s source code from its compiled version overnight, and it can help combine two games when given the right instructions. Human involvement has not disappeared, but the amount of work required has changed.
The best mashups still need significant human tweaking. Yet AI has removed a huge barrier for people who want to test ideas without spending months learning every part of a game’s codebase. One experiment began with a simple request to build a game in a browser. Four minutes later, Claude had produced a rubbish but playable result.
The experimenter still had no idea what they were doing, but the machine had created something that worked. People who understand modding, emulation, and source code have taken the same tools much further, producing unexpected ports and combinations that now spread across Reddit, X, and GitHub.
Recent games such as The Legend of Zelda: Tears of the Kingdom have appeared running in web browsers. Open-source code for Steam-like game launchers draws from emulated codebases, creating vast libraries of retro games for free. PlayStation 5 emulation has also made an enormous jump, with almost any PS5 game now able to run on a PC for free.
That last development brings the legal risk into full view. Much of this activity involves piracy and copyright violations, even as angry videos frame PlayStation 5 emulation as a response to Sony’s abandonment of physical games. The argument is blunt: if a game cannot be bought, how can someone steal it?
AI Has Supercharged the Decomp Scene
Retro gaming communities have spent years taking games apart and rebuilding them for hardware they were never designed to support. These projects are called decomps and recomps, shorthand for decompile and recompile. They break a game into its building blocks, then assemble it again for another platform.
Manual work can take years. A group spent years decompiling the original Animal Crossing on the GameCube, but AI coding tools have cut the timeline for new projects. This summer, AI consultant Chris Sotraidis saw a port of Command & Conquer: Generals Zero Hour for the iPhone and iPad. EA made the game open source last year, and the technical challenge inspired Sotraidis to begin making similar ports.
Within a few weeks, he was working on a dozen projects. Sotraidis says that pace and volume would not have been possible without AI, even though some ports could have been completed with minimal AI assistance given enough time. The tools move much faster when the creator knows what they want.
That speed has created a deluge of new projects, but it has also shaken the communities that built the decomp scene. One reason these projects exist is to help people understand how games work. When AI performs the work, that knowledge can disappear, making it harder to restore a game faithfully.
You can put Spider-Man in a Batman game, but that experiment may not reveal why the original programmers made certain decisions. The result can be entertaining while offering little insight into the structure and history of the game underneath.
A community-focused website that tracked decomp projects and offered resources shut down after AI changed the scene. Its owner, writing under the pseudonym Encounter, said AI can speed decompilation when creators provide guidance, human input, and code reviews. Encounter also said the community itself had been broken.
Open-source projects were created to encourage contributions and help the community, but people began taking existing decomps, “finishing” them with AI, and rushing ports without contributing to the original work. Encounter described those hostile forks as projects that tear apart the community fabric.
A Double-Edged Future for Game Creation
The stakes extend beyond online arguments. More than 90 percent of classic games are considered critically endangered, so tools that make old games easier to access could help preserve gaming history. AI has also turned niche terms such as decomp and recomp into headline material, giving non-programmers a way to experiment and test ideas.
At the same time, speed and careless detail can work against preservation. The result is a divide between people who feel disillusioned by low-quality AI projects and creators who see a new path toward ambitious experiments.
Sotraidis argues that today’s dismissed projects can improve as tools get better and people learn to use them well. He also says better tools will not automatically make people give proper credit or treat one another well, though thoughtful creators may be able to build more impressive things faster.
That vision is already moving beyond hobbyist projects. Epic Games launched a vibe-coded version of its PC games store and shifted to AI-accelerated development for an upcoming collaboration with Disney. Epic CEO Tim Sweeney believes AI tools will lead to “a new golden age of gaming.”
Xbox CEO Asha Sharma created Xbox Labs to explore emerging ideas and turn them into experiences for players and developers. The division has teased an experimental dashboard, while Sharma points to easier access, new life for old games, and more players becoming creators and co-creators.
One project shows why the excitement is so powerful: Mario64, with the character pulled out of the screen to play with in the real world. Creator Lucas Martinic says it is based on the full open-source Mario64 decomp, with help from Claude Opus 5.5, and plans to release a repository so people can try it.
The next phase will not be decided by code alone. Developers, preservationists, platforms, and players will have to decide how credit, copyright, community work, and access fit into an AI-powered modding scene. The tools have already opened the door; what happens on the other side will depend on how carefully people build together.
Based on
- Social media is full of weird video game mashups. Where are they all coming from? — theguardian.com
- Retro gaming is being overrun with AI | The Verge — theverge.com
- Mario 64, but you can *pull him out of the screen* and play with him in your real world. | The Verge — theverge.com
- Games Archive for October 2026 – Page 1 | The Verge — theverge.com
