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Find the keys, decode the vault
Cryptogram Vault
Search a letter grid for hidden words. Each one you find unlocks letters of a secret cipher.
👥 Solo⏱ 3–5 min⚡ No sign-up needed
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🔑 Keys found: VAULT · CODE
Rules in 30 seconds
- 1Find words hidden in the grid to reveal cipher keys.
- 2Each key decodes letters of the scrambled passcode.
- 3Type the passcode once you can read it to open the vault.
Go deeper
How the cipher works
The passcode is encrypted with a substitution cipher: every letter stands for another.
Found words reveal mappings, and you can fill in the rest by reasoning from the partial word.
Strategy tips
- You rarely need every key. Guess the passcode once it’s readable.
- Common endings (‑ING, ‑ED, ‑ER) give away cipher letters fast.
Keep exploring
More modes
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The classic code-break
Cipher Core
Guess the hidden word. Every guess tells you which letters are right, misplaced, or missing.
Solo1–3 minNo sign-up
How it works →👾
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Words are your weapons
LexiClash Dungeon
Fight through a grid dungeon by spelling words from your letter cards. Rare letters hit harder.
Solo3–6 minNo sign-up
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Territory war on a 6×6 board
Grid Control
Trace straight-line words to paint tiles your color, steal your rival’s, and lock categories for explosive swings.
1 vs 14–8 minNo sign-up
How it works →