Boom Castle: Tower Defense TD

4.4
93.1K reviews
1M+
Downloads
Content rating
PEGI 7
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About this game

BOOM CASTLE: Tower Defense TD is an electrifying roguelike idle tower defense TD survivor where your mission is to withstand endless waves and protect your castle from relentless hordes of evil invaders. Confront the ferocity of brutal orcs, undead skeletons, and demonic entities emerging from dark voids, each presenting unique challenges that test your strategic prowess. Don’t let these evil forces breach your defenses—crush them with tactical mastery!

Join Defence Forces with Mighty Heroes

Assemble a team of powerful heroes and embark on an epic journey through enchanted lands. Partner with allies like the resilient Dwarfs and noble Elves to repel evil forces and safeguard the realms. Upgrade mighty heroes and survive waves of enemies in this idle tower defense, ensuring your castle remains unbreachable against the darkest of threats.

Game Features

EXPLOSIVE TOWER DEFENSE ACTION
Prepare for heart-pounding excitement and deep strategic gameplay in Boom Castle! Each wave of enemies presents new tactical challenges, requiring you to adapt and optimize your defenses to maintain your stronghold’s integrity.

IDLE TD SURVIVAL
Experience the perfect blend of idle mechanics and tower defense strategy. Defend your castle against endless waves of enemies by strategically placing and upgrading towers, selecting and combining skills to unleash devastating magical attacks.

DIVERSE MAGIC HEROES
Recruit and command a diverse roster of mighty heroes. Choose from mages, paladins, druids, elemental wizards, and archers, each with unique magical abilities to bolster your defenses and provide strategic advantages on the battlefield.

EPIC ROGUELIKE SURVIVAL
Enhance your heroes with magical infusions and powerful new items. Upgrade them to endure longer in an endless roguelike td adventure, filled with epic battles and limitless strategic possibilities. Each playthrough offers new challenges and opportunities to refine your defense strategy.

ARMORY OF DEFENSIVE WEAPONS
Equip yourself with a vast arsenal of defensive weapons. Control your main weapon, unleash a variety of abilities, and deploy cannons to decimate your enemies in thrilling, action-packed battles. Each bang bang weapon type offers unique tactical benefits, allowing you to customize your defense to suit your playstyle.

STRATEGIC WIZARD’S TRAPS
Transform the battlefield to your advantage with unique traps. Place strategic traps to hinder and eliminate enemy hordes, increasing your survival odds against endless waves of invaders. Master the art of trap placement to create impenetrable defenses.

RPG UPGRADE SYSTEM
Progress and upgrade each hero’s skills. Enhance your towers, weapons, inventory, and castle defenses to withstand even the toughest enemy assaults. Invest in powerful upgrades to maximize your defensive capabilities and adapt to increasingly challenging waves.

ENGAGING CARD COLLECTIONS
Unlock and collect a wide array of unique heroes with powerful doodle magic skills. Improve their defensive abilities and expand your hero collection to build the ultimate defense team.

• Offline Game: Enjoy thrilling tower defense action anytime, anywhere, even without an internet connection.
• Wizard's Survival Defender: Experience endless survivor tower defense replayability with procedurally generated levels and evolving challenges.
• Strategic Variety: Utilize a combination of wizard's , heroes, and traps to create diverse and effective defense strategies.
• Visually Stunning: Immerse yourself in a vibrant fantasy world with detailed graphics and dynamic battle animations.

Are you ready for an offline, casual yet strategically deep tower-defense roguelike survival adventure? Upgrade mighty heroes and survive waves of enemies in this idle tower defense TD. Unleash the boom and become the legendary wild castle defender your kingdom guard needs!

Play BOOM CASTLE: Tower Defense TD now and embark on your epic survivor defense journey!
Updated on
18 Nov 2025
Events and offers

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 2 others
This app may collect these data types
Location, Financial info and 3 others
Data isn’t encrypted
You can request that data be deleted

Ratings and reviews

4.5
88.9K reviews
Ben King
30 August 2025
The difficulty curve needs adjusting, massively. The main game itself, ( which is the reason people play it ) is way too much of a grind! Gaining the cards and diamonds to upgrade characters and the castle takes way too long, and it doesn't actually seem to make much of a difference. I've been stuck on level 55 for weeks now and still nowhere near to completing it 🙄
18 people found this review helpful
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TERAHYPE - AR, GPS & Fantasy RPG + Casual Games
1 September 2025
Thank you for your feedback! We know the game can be challenging and that it requiers patience sometimes. We recommend focusing on making smart choices during battle, as well as using rewards from earlier stages. Balance improvements are coming in the next update. Thanks for playing Boom Castle—we hope you’ll try again! 🏰✨
Bradley Grant
18 August 2025
decent game but pay to win Agreed but only up to a certain point. I've utilised all I possibly can and I'm stuck on stage 16 with no food to fight and units no longer powerful enough. it comes to a point where you're almost forced to pay to proceed or else it's extremely slow grind over days and days of gameplay but eventually come stuck. progression is far too slow and difficult unless you spend £. Needs mote balance. hopefully rectified soon.
2 people found this review helpful
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TERAHYPE - AR, GPS & Fantasy RPG + Casual Games
18 August 2025
Thank you for your feedback. The game is designed to be playable without spending — over 90% of players progress without purchases by upgrading heroes, walls, gear, and using gem strategies. We’re reviewing balance and rewards to keep the game fair and enjoyable for everyone. We hope you'll try the next update! 💎💎😊
Chris Chara
16 August 2025
Would be a 5-star review. So my big problem with this game is that one of the units, Vortexia. When deployed, rather than attack the enemy units damaging my castle, it attacks enemies that are at the top of the screen. And when it does that, the whirlwind attack goes on the attack pattern of all the dead spaces where there isn't an enemy. Kinda stupid and lazy programming, really.
3 people found this review helpful
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TERAHYPE - AR, GPS & Fantasy RPG + Casual Games
18 August 2025
Thank you for your detailed feedback. We’re sorry for the frustration with Vortexia’s targeting. Her skill is designed with a wider range, but we understand it can feel ineffective at times. We’ll forward your report to the team so they can review and improve this behavior in future updates. Thank you for playing Boom Castle! 💎💎

What's new

🔥 Boom Castle – Huge Update 1.6.5: Defense of the Empire 🔥
The Empire needs YOU!

⚔️ 300+ New Story Stages – the saga continues!
🛡️ Weekly Empire Defense Events – unite & protect the realm!
🎮 Weekly Mini Games – fun breaks, bonus loot!
👾 New Enemy Race: Dark Elves – strike from the shadows!
⚡ Improvements – better performance, polish & fixes.
Answer the call. Defend the Empire. Play the biggest Boom Castle update ever!