Four Keys Puzzle

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Everyone
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Everyone
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About this app

Four Keys Puzzle is a logic vault game built around a dual-check cipher: four unique keys must sit in the correct slots and at the correct quarter-turn rotations before the bolt work releases.


Each vault is a self-contained locksmith challenge with limited attempts, clue-driven reasoning, and clear feedback lights that separate wrong identity from wrong torsion. Progression moves across twenty-four casino-floor cages, from training coffers to the Master Locksmith gate, with stars and score rewarding clean clears.


Around the core puzzle, Vault Codex explains lockcraft and key heraldry, achievements track milestone breaches, and locksmith stats keep your floor record. The experience is fully offline, tuned for small and large Android screens, and styled in deep forest green, crimson, and gold.
Four Keys Puzzle is a logic vault game built around a dual-check cipher
Updated on
Sep 16, 2026
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    App activity
  • Data is encrypted in transit
  • Data can’t be deleted

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V 1
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Everyone
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About the developer
INTEHRAL-BUD TOV
denys@integral-bud.solutions
5, of. 131, pr-t Peremohy Kyiv місто Київ Ukraine 01135
+380 99 475 4112

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