Crack the code.
Storm the castle.
Word puzzles meet castle warfare. Solve to raid fortresses, level up to 100, and outlast 99 rivals in live Battle Royale.
Jump straight into the Arcade. Create an account any time to save progress.
Three steps to your first raid
Solve
Crack word puzzles in four different styles, from classic code-breaking to dungeon fights.
Raid
Beat a castle’s gauntlet of puzzles to pillage its gold and earn Infamy.
Rise
Level up to 100, unlock modes and castle themes, and take the Battle Royale crown.
Six ways to play
Pick a mode and go. Every page has 30-second rules, with deeper strategy one tap away.
Cipher Core
Guess the hidden word. Every guess tells you which letters are right, misplaced, or missing.
LexiClash Dungeon
Fight through a grid dungeon by spelling words from your letter cards. Rare letters hit harder.
Grid Control
Trace straight-line words to paint tiles your color, steal your rival’s, and lock categories for explosive swings.
Cryptogram Vault
Search a letter grid for hidden words. Each one you find unlocks letters of a secret cipher.
Battle Royale
Race 99 rivals through five shrinking rounds of word puzzles. Solve fast or get cut.
Castle Sieges
Pick a target castle, beat its gauntlet of puzzles, and pillage its treasury. Then fortify your own.
Build a castle worth defending
Unlock themes as you level up or find them in the daily store. Every castle is a gauntlet of puzzles you design.
100 enter. 1 wears the crown.
Five rounds, one shared puzzle, a ticking clock. Only the fastest solvers advance. Win to claim the Crown, then defend it for double payouts.
Quick answers
Is Cipher Siege free?
Yes. The game is free to play in any modern browser. Optional cosmetics can be bought with in-game gold, and rewarded ads can top up your gold.
Do I need an account?
No. You can jump straight into the Arcade, Battle Royale (guest lobbies) and bot castle sieges. Create a free account any time to keep your progress, play on any device, claim your own castle, and unlock the store, friends, Vanguards and the leaderboard.
Does it work on my phone?
Yes. Cipher Siege is built mobile-first and also plays great on desktop. No download needed.
What dictionary do you use?
All word puzzles accept words from the standard Scrabble dictionary (SOWPODS). Puzzles use words of 4 to 8 letters.
Your first siege is one tap away
No download, no credit card. Play in your browser right now.