Boom Castle: Tower Defense TD

Idle Tower Defense TD Survival

Free · In‑App Purchases · Designed for iPad

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!

  • 4.7
    out of 5
    6.7K Ratings

Boom Castle – UPDATE 1.7.0: Winter Empire is LIVE! Defenders, this update brings new tools, new power, and fresh ways to dominate the battlefield. What’s New in 1.7.0: Winter Empire • 3 New Traps A brand-new gameplay style with three unique traps to outsmart enemies. • New Gem Types Adds deeper strategy and more customization to your builds. • Winter-Themed Live Events Schedule Seasonal challenges and rewards inspired by the winter season. • Lifetime VIP Available Unlock all VIP benefits forever with a single purchase. • New VIP Tier (One-Time Purchase) A permanent VIP upgrade with no subscriptions required. • New Rewards for VIP Owners Additional exclusive perks for players who own VIP tiers. • New Vampire Character A dark and powerful new hero joins the roster. • Additional Gem Slots More gem slots for a stronger, more impactful loadout. • Meta & Core Gameplay Balancing Adjustments across systems to improve overall game flow and fairness. Update 1.7.0 brings new strategy, new power spikes, and fresh ways to play. See you on the battlefield!

The developer, Terahype s.r.o., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Purchases
    • Identifiers
    • Usage Data
    • Diagnostics
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Seller
    • Terahype s.r.o.
  • Size
    • 390.7 MB
  • Category
    • Casual
  • Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    English and 34 more
    • English, Belarusian, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tagalog, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
  • Age Rating
    13+
    • 13+
    • Frequent
      Cartoon or Fantasy Violence
      Guns or Other Weapons

      Contains
      Loot Boxes
      Advertising
  • In-App Purchases
    Yes
    • VIP Royal Privilege Pass 2 $9.99
    • Daily Login Premium Pass $1.99
    • Battle Pass 1 $4.99
    • Battle Pass 2 $14.99
    • VIP Royal Treasure Pass 1 $4.99
    • Diamond Pack 2 $4.99
    • Diamond Pack 3 $9.99
    • Diamond Pack 4 $19.99
    • Starter Pack $0.99
    • Kingdom Treasures 1 $2.99
  • Copyright
    • © 2026 Terahype s.r.o.