Defend the Castle: Card TD
by Small Giant Games
Defend the Castle combines deck building with tower defense, requiring you to construct and upgrade elemental card decks to repel enemy waves. Fuse tower cards together to strengthen your defenses, climb progression ladders, and compete against other players in PvP battles or cooperative alliance raids. It's suited for players who enjoy strategic card selection and incremental tower upgrades with competitive social elements.
About this game
DECK BUILDING TOWER DEFENSE
Defend your castle against hordes of enemies! Build your tower card deck and rank up your towers to defeat increasingly powerful monsters!
COLLECT AND LEVEL UP
Collect elemental cards and build versatile decks to crush any foes that attack your castle. Craft your strategy and advance through increasingly difficult levels and enemies!
TOWER CARD FUSION
Combine tower cards to create unique and more powerful towers. Level up your cards! Fortify your tower defenses to beat powerful elite and boss enemies for great rewards as you progress your way up!
PLAY WITH FRIENDS
Play against other players (PvP). Attack opponents by releasing minions and defend against your opponents minions with your towers. Join or create an alliance to repel hordes of zombie enemies with your team!
QUESTS
Challenge yourself with timed quests and test your deck in themed challenges to earn limited-time rewards!
Defend the Castle is free to download and play, however, some game items can also be purchased for real money. Information about drop rates for random item purchases can be found in-game. If you don't want to use this feature, please disable in-app purchases in your device's settings. The game also includes random rewards.
You must be at least 13 years of age, or such higher age as required in your country, to play or download Defend the Castle. A network connection is required for this game (network fees may apply).
Use of this application is governed by our Terms of Service, found at https://www.take2games.com/legal. For questions about the game, please review our game support page here https://smallgiant.aihelp.net/hc/account/4-Defend_The_Castle/en?p=ios.
For information about how Zynga uses personal data, please read our privacy policy at www.take2games.com/privacy.
© 2026 Zynga, Inc. All rights reserved.
Small Giant Games Oy. Aleksanterinkatu 13, 00100 Helsinki
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