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Classic console games are collapsing into the web at a pace nobody asked for: in the past two weeks, hundreds of AI-decompiled ports of PS2- and PS3-era titles have appeared online, and several of them play like the real thing.
Hundreds of AI-decompiled games — Halo: CE, GTA: Vice City, Call of Duty: Black Ops, Skate 3, The Simpsons: Hit and Run — now run in a browser tab, and the ones we've seen reports of don't look like bootleg garbage. Kotaku's Lewis Parker spent time with the ports and reported that The Simpsons: Hit and Run targets 240 frames per second, and that one of four separate Halo: CE builds he tried had working online servers with a low ping. The wave is attributed to Claude Opus 5.5, which Parker describes as unusually good at decompilation: reconstructing a game's source code in the time a human reverse-engineer would spend on a fraction of the work, then compiling it to WebAssembly overnight. A viral thread from the account Radiant Optimizer on October 8 showed Black Ops zombies, Skate 3, Halo and Modern Warfare 2 all playable from a page with nothing installed.
Why this matters more than the usual AI-slop cycle: browser ports haven't been bottlenecked by hardware for years — a PS3 shipped with about 512 megabytes of RAM, and a 2026 browser tab already uses more than that. The scarce resource was always skilled labor: decompiling and repairing a game by hand took months. If an agent can do it overnight, repeatedly, the enforcement math changes. Publishers can still win takedowns — Activision and Bethesda have already moved against AI-assisted Fallout and Modern Warfare projects, and a GTA 5 browser site reportedly vanished within hours — but each notice now races against a process that rebuilds the same thing faster than the last one came down. The likely equilibrium isn't fewer infringing ports; it's legal teams working overtime while the ports keep reappearing under new domains.
There's a real capability story underneath the IP story: decompilation-quality code reconstruction is a benchmark nobody publishes, and it just became a consumer-visible demo running in front of millions of players. If models can reliably rebuild working software from compiled binaries, that cuts both ways — game preservation and interoperability get easier, and so does wholesale copying of commercial codebases. That ambiguity is why this is worth watching beyond the takedown notices.
What to watch: whether platform holders go after the hosts and model providers rather than individual ports, and whether Anthropic says anything about how Opus 5.5 is being used for decompilation.
Have AI coding tools crossed a line with game decompilation, or is this just reverse engineering at machine speed? Tell us in the comments.
