Defend the Castle

Small Giant Games

In-app purchases

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=android.

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

Ratings and reviews

the horde battle was updated to the new style, cool, but you cut the time of the round from the 3 minute match to 1 and a half.... barely able to get any real progress. Also, your Axe towers are now broken and don't match their description "Throw a series of Axes" Throws 1 single axe even after upgrading, not a series. it used to do that before the latest update. Big Lightning 3☆ says it has a chance to jump to 7, it's was a chain skill, shouldn't be a chance. please fix the broken towers.

used to play a ton last summer, but they COMPLETELY changed good cards. the "sticky bomb" was fantastic and slowed enemies, now it's just a "poison bomb." the axe and darts used to shoot multiple once upgraded, now they're slow and shoot a single hit. super lame. I loved this game and came back to it so disappointed. totally pay to win. greedy as heck.

Great in the beginning, but cards are too hard to get and the random merging makes it hard to have the cards you need. The down grading of weapons, you've worked hard to get, is disappointing. I play this game daily, but I have to drop my rating to 1 until game play and card mechanics are improved. A mechanic that needs to be added is a way to disassemble cards. That way when they NERF weapons, you can try for other ones.

What’s new

Massive PvP Rework:
- Adjustments to a variety of existing Towers and Monsters
- New PvP energy system
- New PvP battle layouts
- Improved deck power calculation
- Updated PvP matchmaking logic
- Revamped UI/UX
- New Common, Uncommon, Rare, and Epic Monsters

Complete Horde Overhaul:
- New special Zombies
- Three new five-path Horde battle layouts with 12 Tower slots
- New Danger Level mechanic
- Improved Horde scoring system
- Nicer visuals

Various other improvements and bug fixes.