Panda Vault: Code Breaker

Master Bao has a problem: 500 vaults, 500 secret codes, and no memory of any of them. Luckily he kept the case files, and each one is solvable by pure logic.

Panda Vault: Code Breaker is a deduction game. Every vault hides a secret code of 3, 4 or 5 digits, and no digit ever repeats. You get graded clues from Bao's file:

• JADE PEG: that many digits are correct AND in the right position

• GOLD PEG: that many digits belong to the code, but sit in the wrong slot

• NOTHING: every digit in that row is out of the code. Cross them off.

Combine the clues, eliminate what cannot be, and the code is what's left. Then punch it in and watch the bolts retract.

WHY IT'S DIFFERENT

• Every one of the 500 levels is machine-verified to have EXACTLY ONE solution, you will never guess, and never get stuck on an unfair puzzle.

• Every clue is necessary. Remove any single row and the puzzle stops being solvable, so nothing on screen is filler.

• A smooth difficulty ramp: 3-digit Bronze Vaults teach the rules, 5-digit Diamond Vaults with minimal clues will take a pen and paper. Every 10th level is a breather.

BUILT-IN DEDUCTION TOOLS

• A notebook to mark each digit 0–9 as OUT, MAYBE or IN.

• Thunder Scan, spends one charge to fill in every deduction the clues already prove, so you can spend your attention on the interesting part.

• Your own attempts get graded too, so a wrong answer is still information.

AGENT BAO

A fully animated panda who breathes, blinks, tilts his head while you think, hops when you land digits, shakes his head when you don't, chomps bamboo when you spend a hint, and backflips when the vault swings open.

PROGRESS

• Daily streak: crack one vault a day to keep it alive. Miss a day and it restarts, helpers never break it.

• Climb the ranks: Novice Cub → Lookout → Safe Cracker → Vault Specialist → Master Bao → Grandmaster.

• Put the phone down mid-vault: the board, your attempts and your notes are exactly where you left them.

HELPERS (optional, never required)

• Golden Bamboo — reveals and locks one correct digit.

• Thunder Scan — marks every digit the clues already prove in or out.

• Master Key — opens the vault instantly.

Earn them from rewarded video (a Master Key takes two), or buy a pack. Every puzzle is solvable without any of them.

NO NONSENSE

• Plays fully offline. No account, no login, no data collection.

• No timers, no lives, no energy meters. Think as long as you like.

• One optional reminder at 22:00, only on a day you haven't played. Turn it off in Settings and the app never notifies you again.

• One-time Remove Ads purchase if you'd rather not see ads.