CastleMiner Z stats.sav Decompiler

Standalone local parser. Pick a stats.sav file and it will decode SaveDevice-wrapped files, the DNA PlayerStats header, CMZ stats payload, input bindings, and optional MoreAchievements trailer.

GitHub: CMZ Stats SAV Decompiler
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This only reads the file in your browser. It does not upload anything. For encrypted SaveDevice files, enter either the SteamID64 folder name, the old gamertag used by pre-migration saves, or a raw 16-byte hex key.