For iPhone and iPad
Castle of Numbers
Topple castles with number cards: play the round's operation, bring the castle's number down and conquer 432 castles. Collect bricks for your own orc or human keep and face a fresh puzzle every day.
No account needed. The game is free; optional in-app purchases and optional rewarded ads are available.
How to play
- The round's operation is known. Every round brings addition, subtraction, multiplication or division.
- Play a card or merge two. Apply one card to the castle, or merge two cards into a bigger Union card (5 × 5 = 25).
- Bring the castle down to 1–10. When the castle's number drops to 1–10 and your hand can make it, the battle ends.
What's in the game
432 castles, 6 ranks
A short warm-up starts you off; every rank has its own region, colors and commanders.
Orc and human cards
Odd cards are orc, even cards are human. Unlock abilities for your cards and use them at the right moment.
Your own castle
Earn bricks in battle, repair and upgrade your keep, and fit defenses such as the Shield Tower, Mist Tower and Iron Wall.
Castle-to-castle duels
Race ghost opponents against your castle and climb leagues and 28-day seasons. No waiting in queues.
A new puzzle every day
The Castle of the Day, the Puzzle Castle and Today's Trio refresh daily; share your result with friends.
Clean and crafted
Original illustrations, medieval-flavored music, Reduce Motion and left-hand layout support.
Try it without installing
Solve the same daily puzzle as the app right here: there is exactly one way, and every move's operation and incoming card is known from the start. No cookies, no account.