An open-source toolkit that connects AI coding agents to reverse-engineering software has rapidly become one of GitHub’s most watched projects, as developers use similar techniques to create game ports, mashups and free alternatives to commercial software.
REA, short for Reverse Engineer Anything, rose from fewer than 10,000 GitHub stars on October 6 to more than 100,000 by October 12, according to Decrypt. The project gained more than 30,000 stars on October 11 alone, after attracting relatively little attention since it was created in April.
The surge highlights how newer AI coding systems are changing the practical limits of software analysis. Projects that once required extensive manual work can now be examined by an AI agent connected to specialist tools, although the results still require human intervention and do not automatically reproduce original source code.
How REA connects AI to software analysis
Software applications and games are generally distributed as machine code: processor instructions that are difficult for people to read directly. Decompilation attempts to convert that material into a more understandable form. Reverse engineering is a broader process that can also involve observing an application’s behavior, examining the information it sends and determining how its different components work together.
REA serves as a bridge between AI coding assistants and established reverse-engineering programs. It can connect systems such as Claude Code and OpenAI’s Codex to tools including Ghidra, the reverse-engineering suite released publicly by the U.S. National Security Agency in 2019. The connection uses the Model Context Protocol, or MCP, a standard created by Anthropic that allows AI models to work with external tools.
A user can direct an AI agent to investigate a particular feature in a desktop application, Android app or website. The agent can then move from the visible behavior of the program toward its underlying binary instructions and supporting tools.
REA’s own documentation sets out important limitations. The toolkit does not claim to recover an application’s original source code or automatically create an identical clone, and it does not include its own decompiler. Instead, it coordinates other tools and gives an AI assistant a way to use them.
That distinction is central to the projects emerging around the technology. Developers may create software that behaves similarly to an existing product without copying its original code. Whether a particular project is lawful can depend on its implementation, content and the rights involved; the toolkit itself does not remove those legal questions.
From game mashups to unofficial ports
AI-assisted reverse engineering has already been used for a range of experimental game projects. Players have seen Spider-Man placed in Batman: Arkham City, while another project added roughly 1,600 Minecraft items to FromSoftware’s Elden Ring, allowing Minecraft creatures known as creepers to fight the boss Malenia. A separate Skyrim modification incorporated weapons and menus from Escape from Tarkov.
The approach has also been used to move games beyond their original platforms. In September, a developer used an open-source AI model and a recompilation toolkit to bring Fable 2 to Windows. The game was the only mainline entry in the Fable series that had not been released on PC. The AI produced a booting version in about an hour, but the project then required a lengthy period of manual fixes.
Another developer, identified as C22, showed Grand Theft Auto V running natively on an iPhone. The result was notable because Rockstar Games had not released an iOS version of the game. These projects illustrate both the potential and the limits of AI-assisted development: automation can accelerate the first stage, while working software may still require substantial human repair and testing.
Free software alternatives bring fresh legal and quality questions
The same broader idea has moved beyond games. Developer Brandon Thomas created ArtCraft, a collection of free, open-source applications written in Rust that are intended to mirror Adobe products including Photoshop, Illustrator, Premiere and Lightroom. The software is designed for Mac, Windows and Linux and was built using Claude Opus 5.5, rather than REA.
Thomas describes ArtCraft as a clean-room rebuild. In that approach, developers write new code from scratch using public documentation and observations of how an existing product behaves, without accessing the original source code. He said the project followed frustration with Adobe’s cancellation fee. Adobe agreed in March to a $150 million settlement with the Justice Department over allegations that it concealed early termination fees and made subscriptions difficult to cancel. Adobe denied wrongdoing.
ArtCraft’s applications remain marked as early alpha or in development. One pixel artist described the Photoshop alternative as “completely unusable,” while Thomas moved away from an earlier promise to match Adobe’s feature set within one month and said the work would take months.
The wider implications are mixed. Easier analysis could support lower-cost software alternatives and help preserve games that are no longer officially available. It could also make piracy easier and reduce the obscurity that has historically made software vulnerabilities harder to identify.
Rights holders have already responded to some projects. Activision removed footage of an AI-decompiled version of Call of Duty: Modern Warfare 2, while Bethesda sent a cease-and-desist letter concerning an AI-created browser game called Fallout: New York.
REA’s development has continued quickly, with eight releases between October 3 and October 11. Its rapid growth suggests that AI-assisted reverse engineering is attracting sustained interest, even as developers, publishers and software companies confront unresolved questions about copyright, cloning and enforcement.
Current market picture
Moneyiar market data at 09:58-09:59 on October 13, 2026, showed losses across the four tracked digital assets:
- Solana (SOL): $106.7981420825, down 4.30% in 24 hours and 10.68% over seven days.
- Cronos (CRO): $0.0592698032, down 3.88% in 24 hours and 12.81% over seven days.
- Compound (COMP): $23.3827762095, down 6.55% in 24 hours and 4.17% over seven days.
- Holo (HOT): $0.0003992921, down 4.38% in 24 hours and 13.23% over seven days.
