Decomp.dev Ends Public Rankings Amid AI Code Quality Dispute

The Short Version

Decomp.dev is ending its public index and leaderboard, according to Tom’s Hardware’s account of a site update. Its creator, known as encounter, says AI-assisted forks and hurried PC ports have undermined the community the rankings were meant to encourage. Existing projects will continue reporting, and their pages and histories will remain, but new projects cannot join.

Why It Matters

For someone following efforts to understand older games, a rising completion percentage can look like a clear measure of progress. The dispute shows why the meaning of that number matters. Matching decompilation aims to recreate source code that compiles into the same machine code as the original game. The report explains that AI-generated code can meet that matching goal without resembling how the original developers would have written it. A matching result and useful research code are therefore different things to assess.

The Bigger Picture

Encounter’s objection is about how the tools are being used. The creator acknowledges that AI can speed up decompilation, especially with human guidance, while criticizing forks that rush to finish other teams’ work or produce rough ports. These are the creator’s assessments, rather than an independent count of defective releases. The account also describes a moderation problem: a blanket AI ban would be impractical, while judging hundreds of projects would place too much responsibility on one hobbyist.

What to Watch

The reported change concerns the shared rankings, rather than an end to decompilation work. Tom’s Hardware names no successor or shutdown date and says existing project records will stay available. Any replacement would need to explain what its percentages measure and how it handles disputed contributions. For readers, the useful next question is whether a progress figure describes a machine-code match, the quality of the reconstructed code, or the readiness of a playable port.

What would make a game-decompilation progress score useful to you?