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Best Defender Castle Apps & Games

196+ iOS apps & games curated and reviewed

4.1 avg rating
19 free apps & games
Updated June 2026

Every iPhone needs a few good defender castle apps. We benchmark 196+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Defender Castle

Grim Defender: Castle Defense#1

Grim Defender: Castle Defense by BYTEGHOUL GAMES

Upgrade and defend your base
Editor's Choice
🎮 Games
4.7😊(1K ratings)
FreeAdsIn-App Purchases
Grim Defender: Castle Defense screenshot 1
Grim Defender: Castle Defense screenshot 2
Grim Defender: Castle Defense screenshot 3
Grim Defender: Castle Defense screenshot 4
Grim Defender: Castle Defense screenshot 5
Grim Defender: Castle Defense screenshot 6

Defend your castle against hordes of monsters using strategy and skill. Upgrade your defenses, combine weapons and spells, and compete in global leaderboards for the ultimate defense title! Play offline, join the action at https://www.grimdefender.com.

What We Love

  • 👍 Simple and fun gameplay
  • 🕹ī¸ Satisfying progression and upgrades
  • 💰 Generous free-to-play model
  • 🕰ī¸ Great time-waster game

Room to Improve

  • 🔍 Dark gold is too rare to obtain
  • 🐛 Occasional crashes and bugs
  • 🔒 Account progress loss issues
Defend the Castle: Card TD#2

Defend the Castle: Card TD by Small Giant Games Oy

Deck-builder Tower Defense!
Strong Contender
🎮 Games
3.5😐(54 ratings)
FreeAdsIn-App Purchases
Defend the Castle: Card TD screenshot 1
Defend the Castle: Card TD screenshot 2
Defend the Castle: Card TD screenshot 3
Defend the Castle: Card TD screenshot 4
Defend the Castle: Card TD screenshot 5
Defend the Castle: Card TD screenshot 6

Defend your castle against hordes of enemies by building a tower card deck and ranking up your towers. Collect and level up cards, combine them to create powerful towers, and play with friends to test your strategy in this free-to-download deck building tower defense game.

What We Love

  • 👍 Excellent new TD game
  • 👍 Lots of weapons and fun game
  • 👍 A surprisingly good game
  • 👍 Wonderful little TD game

Room to Improve

  • 🐛 Fix the bs
  • 🐛 Bug report
  • 🔋 Horrible
Defender III#3

Defender III by DROIDHEN LIMITED

Guard your castle!
Worth Considering
🎮 Games
4.5😊(5.2K ratings)
FreeAdsIn-App Purchases
Defender III screenshot 1
Defender III screenshot 2
Defender III screenshot 3
Defender III screenshot 4

Guard your castle and defend against the dark dragon army with Defender III! This tower defense game offers over 50 skills, 500 levels, and the ability to explore four elements while enhancing your army's weapons and magical powers. Are you ready to protect your kingdom from epic monsters and dark magic?

What We Love

  • 👍 Great game
  • 🚀 Addictive gameplay
  • 💎 Decent free-to-play model
  • 🎨 Good graphics and visuals

Room to Improve

  • 🐛 Crashes and bugs
  • 💰 Expensive in-app purchases
  • 🕰ī¸ Slow progression without spending

More Defender Castle apps to explore

4
Backpack Castle Heroes
Backpack Castle Heroes
Backpack Castle Heroes
Defend Your Castle!
Free
🎮 Games
(264)
5
Castle Doombad: Free To Slay
Castle Doombad: Free To Slay
Castle Doombad: Free To Slay
Defend Your Evil Lair!
Free

Defend your evil lair as the ultimate villain in a thrilling blend of strategy, tower defense, and trap-based puzzling. Unleash devious traps and minions to crush heroes, conquer stages, and customize your defenses in this epic tower defense showdown. Pre-register now and embrace your inner villain!

🎮 Games
(1.4K)
6
Castle Defender: Idle Defense
Castle Defender: Idle Defense
Castle Defender: Idle Defense
Choose your strategy
Free

Protect your royal castle from waves of enemies in this epic tower defense game. Summon strategic defenses and lead your heroes to victory with skills like archery and magic. Castle Defender: Idle Defense awaits your command!

🎮 Games
(122)
7
Defend Your Castle
Defend Your Castle
Defend Your Castle
by XGen Studios
$0.99

Defend Your Castle is a castle defense game that lets you battle crayon invaders by upgrading your kingdom's defenses and converting soldiers to archers, wizards, or craftsmen. With multiple enemy types, powerful spells, and unlimited levels, will you rise to the challenge or watch your castle fall? Strengthen your army, cast spells, and defend your realm in this epic game.

🎮 Games
(30)
8
Archery Bastions: Castle War
Archery Bastions: Castle War
Archery Bastions: Castle War
Defend the tower with arrows!
Free

Defeat enemies and conquer their castles using slingshot shooting in this action-packed game. Upgrade archers, hire mercenaries, and use various arrows to emerge victorious in Archery Bastions: Castle War! Join the battle of castles now!

🎮 Games
(17K)
9
Castle Defenders Clash
Castle Defenders Clash
Castle Defenders Clash
Roguelike defense game!
Free

Get ready for a thrilling Roguelike defense adventure in a medieval fantasy world where you'll command a mercenary squad to defend the remaining kingdoms from an all-out monster assault. Assemble a team of unique allies, collect powerful relics, and unlock new strategies to turn the tide of battle and become the ultimate commander.

🎮 Games
(15)
10
Chan Van Van: Castle 10 Defend
Chan Van Van: Castle 10 Defend
Chan Van Van: Castle 10 Defend
Defend, offline, tower
Free

This epic tower defense game lets you defend 10 castles across 100 maps with beautiful graphics and animations, all while playing offline. With over 200 collection items, you can enjoy rewarding challenges and help shape the future of this fantasy game.

🎮 Games
(101)
11
Slime Castle: Idle TD RTS Game
Slime Castle: Idle TD RTS Game
Slime Castle: Idle TD RTS Game
Verteidige das KÃļnigreich!
Free

Embark on an epic idle adventure to defend the forest against invading humans in this role-playing idle tower defense game. Enhance your slime abilities, collect equipment, and defeat enemies to safeguard peace. Enjoy auto-battle, unique maps, upgrades, and strategic battles. Email us at redtaildreamworks@gmail.com for support or suggestions.

🎮 Games
(8.4K)
12
Defender II
Defender II
Defender II
by DROIDHEN LIMITED
Free

Defender II is a castle defense game where waves of monsters attack, and players must strategically use magic spells, towers, and defenses to protect their castle. Download the app now to experience powerful gameplay and thrilling challenges!

🎮 Games
(1.1K)
13
Defenders 2: Tower Defense CCG
Defenders 2: Tower Defense CCG
Defenders 2: Tower Defense CCG
Defeat all in epic defence!
Free

Defend your castle and battle against monsters in a strategic tower defense game with unique towers, spells, and challenging bosses. Compete in PvP battles, customize your defenses, and prove your skills in epic TD fights. Play now and become the ultimate defender!

🎮 Games
(719)
14
Castle Defender :Machine Gun3D
Castle Defender :Machine Gun3D
Castle Defender :Machine Gun3D
Machine Gun War Conquest
Free

Defend your town from relentless skeleton armies by strategically upgrading your machine gun and defenses in this action-packed tower defense arcade game. Hold the line against the undead horde and fight to protect your city!

🎮 Games
(2)
15
Grow Castle!
Grow Castle!
Grow Castle!
by YONG OK PARK
Free

Protect the castle from enemy attacks in this defense game by strategically placing heroes and upgrades in the castle tower. With over 80 heroes each possessing unique skills, aim to clear higher levels and compete for top rankings globally.

🎮 Games
(2.2K)
16
Castle Creeps TD
Castle Creeps TD
Castle Creeps TD
"Best Strategy Game of 2017"
Free

"Lead troops to victory in a fantasy mobile Tower Defense game. Prepare your defenses to save the kingdom from fierce Warlords and colossal Ogres. Download now to experience award-winning strategy gameplay!"

🎮 Games
(8.4K)
17
Defend the Castle
Defend the Castle
Defend the Castle
by Brandon Jabr
Free
🎮 Games
(30)
18
Days Bygone: Castle Defense
Days Bygone: Castle Defense
Days Bygone: Castle Defense
Grow, Defend, Survive!
Free

Embark on an endless defense journey against escalating enemy attacks. Upgrade defenses, unlock weapons, and recruit heroes to fortify your castle in the battle for survival! Start defending now and see how long you can withstand the relentless waves of enemies!

🎮 Games
(2.4K)
19
Castle Defender: Fort Defense
Castle Defender: Fort Defense
Castle Defender: Fort Defense
Strategic Fort Defense Game
Free

Defend your castle from enemies by merging powerful medieval weapons and changing strategies on the fly in this fast-paced, challenging game. Join the epic battle, lead your troops to victory, and become a hero by downloading and playing now.

🎮 Games
(13)
20
Let it Go - Olaf Castle Defender
Let it Go - Olaf Castle Defender
Let it Go - Olaf Castle Defender
by Serge Spijkstra
Free

Save your area from falling snowballs and bombs by shooting them in mid-air with a fast-moving gun that fires multiple bullets at once. Tap the screen to control the gun and progress through exciting levels, challenging your hand-eye coordination and reaction time.

🎮 Games
(2)

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