A daily challenge game. Every day brings a new set of puzzles across three difficulty levels. Puzzles are generated server-side, derived from the current date, so every player sees the same challenge on the same day. An optional Claude integration enhances presentation and accessibility with AI-written text and labels.

Puzzle Types

  • IQ pattern puzzles — odd-one-out, sequence, grid-completion, analogy, rotation, and matrix
  • Constellation star-mapping — identify the missing star in real astronomical constellations
  • Piano melody echo — listen to a melody and play it back on a full-octave keyboard

Highlights

  • Passkey saves — WebAuthn passkeys (no accounts or passwords)
  • Time-travel archive — browse and play any past day’s puzzles
  • 4 languages — localized in English, Spanish, French, and Japanese
  • Achievements & Stats — unlockable badges with a dedicated gallery
  • Original sound design — Web Audio API soundtrack with spatial effects
  • Lightweight — no frameworks; the entire client is vanilla JS bundled by esbuild

Play at mini-mystery.com →