The release of the Anthropic Claude Opus 5.5 AI model has enabled enthusiasts to decompile and port computer games to web browsers in a matter of hours. Previously, this process required months of development work.

Recent examples of browser-based ports include titles such as Call of Duty: Black Ops, Halo: CE, Grand Theft Auto: Vice City, Skate 3, and The Simpsons: Hit and Run. Some of these versions demonstrate performance levels exceeding the original releases.

For instance, the browser version of The Simpsons: Hit & Run reached a frame rate of 240 frames per second. This performance is attributed to the high memory capacity of modern browsers compared to the original console hardware.

The use of AI models allows for the automated extraction of source code from games without the consent of copyright holders. This trend has raised concerns regarding intellectual property rights, drawing comparisons to the era of pirated game DVDs.