How AI Is Cracking Open Video Games

Summary

The video explains how AI agents are accelerating video-game decompilation: reconstructing readable source code from a finished game’s machine code.

Developers write source code and compile it into a form consoles can run. Decompilers attempt to recreate the original instructions by writing a candidate, compiling it, comparing the result with the game’s code, and correcting mismatches. The process is laborious, but well suited to AI agents that can repeat and check thousands of small changes.

How AI is changing the work

• Earlier projects show how long decompilation could take: Ocarina of Time took a team 21 months, while Super Smash Bros. Melee took more than six years. The Melee team used an AI model near the end of its project.
• Security researcher Maurice Human directed four Claude agents at Modern Warfare 2: three wrote code, and one reviewed commits. The project reportedly reached 7,000 commits and more than 200 billion tokens, with the game playable through its “nuke” sequence. The video estimates the work would cost $85,000 at list prices, while noting that it was run on a €200 subscription.
• The narrator’s central point is that AI has made the repetitive “last mile” cheaper—but this work still relies on years of human-built tools and documentation.

Games and emulation

The video describes a burst of decompilation projects, including Halo: Combat Evolved, Super Mario Galaxy, and Star Fox Adventures. The Mario Galaxy team emphasized that it used no AI; Star Fox Adventures reportedly went from an empty repository to a complete match in seven months.

Readable code can help fans adapt older games for new hardware, add widescreen support and other modifications, or preserve games that no longer run on their original platforms.

The video also discusses emulation, which is related to but distinct from decompilation. Marvel’s Wolverine reportedly booted in a PC emulator 12 days after release, although it ran at two frames per second on its main menu. Demon’s Souls reportedly improved from about one frame per second to 40–50 in roughly a month. The narrator cites more than 500 custom emulator builds, many patched to address individual games.

Beyond games—and what software companies still offer

The video says AI-assisted reverse engineering is also being used to recreate or unlock other software. Examples include a free Photoshop-like app, open-source replacements for seven Adobe apps, tools for turning finished Live2D models back into editable projects, and efforts to replace a fitness tracker’s subscription-dependent data setup.

The narrator challenges the claim that niche software is therefore “dead.” In many businesses, the real advantage is not simply difficult-to-copy code; it is support, updates, servers, trust, and accountability when something breaks. AI most threatens products whose defensibility depended mainly on copying being tedious.

Legal and preservation issues

The video describes software reverse engineering as legally complicated. It points to the clean-room recreation of IBM’s PC BIOS in the 1980s and says courts have recognized that taking software apart to understand it can qualify as fair use. But decompilation that closely reproduces copyrighted code is a different matter.

Projects often omit game files and require users to supply their own copies. The narrator characterizes the legal status as uncertain and dependent on whether a publisher challenges a project.

The video also argues that fan projects can preserve games publishers abandon. It cites the removal of P.T. from the store and the shutdown of Modern Warfare 2 PC multiplayer in 2023. It mentions a proposed EU law that critics fear could require ID for online play or make private game servers illegal, while noting that the proposal was still at an early stage and could change.

Risks, misleading claims, and limits

Tools that help preserve old games can also be used to copy unfinished or new work. The video recounts fears around AI-generated clones of a Tetris concept and alleged attempts to reproduce indie games. It cautions that two viral incidents described in the subtitles were disputed: commenters suspected one was an AI-generated video, and another poster was reportedly banned for posting fake stories. Even so, the narrator says creators may become less willing to share work in progress.

The video also corrects exaggerated claims. A viral post said Fortnite had been decompiled and rewritten in Rust in half a day; it was actually a small lookalike prototype, not a full rewrite. By contrast, Bun’s creator reportedly moved about half a million lines of code to Rust in 11 days with dozens of agents and roughly $165,000 in compute, while guiding the work.

The narrator notes that famous decompilations benefited from favorable conditions: Resident Evil 4 had a debug build with function names, Halo: Combat Evolved had debug symbols, and Halo 3 had neither and reportedly took years.

Conclusion

Code is only part of a game’s value. Human creative choices, player communities, and live-service servers cannot simply be recovered from a disk. Publishers retain control of their brands, servers, and future releases, while decompilation gives fans more ability to keep older games running.

Reviews, guides, or tutorials

None. This is a technology explainer and analysis.

Main speaker and sources

The video is narrated by an unnamed host. It refers to security researcher Maurice Human; Ross Scott of Stop Killing Games; developers and teams associated with Bun, Resident Evil 4, Halo, Super Mario Galaxy, and Super Smash Bros. Melee; and various fan and developer posts.