Dig! Demon Castle

Dig, raise monsters, defend!

Only for iPhone

$1.99 · Designed for iPhone. Not verified for macOS.

iPhone

New in 1.1: Monster Traits. Pick a monster and unlock the two upgrades only it has — 18 in all. Plus original background music and a fresh app icon. The heroes are coming to kidnap your Demon King — so grab your pickaxe and DIG! Dig! Demon Castle is a reverse tower-defense roguelite where the dungeon itself is your weapon. Carve tunnels, grow a monster ecosystem, and crush the invading heroes. HOW IT WORKS - Dig tunnels to release nutrients from the soil - Nutrients spawn Puni (slimes). Puni eat and evolve into Lizards. Lizards hunt Puni and evolve into Dragons - A real food chain: feed it, balance it, and it will fight for you - When the heroes invade, your ecosystem defends the Demon King FEATURES - Two modes: endless score attack & a 15-stage Expedition to topple the Human Castle - 11 monsters to discover, including rare ones born only under special conditions - Golden Puni, ghostly Borei, and a runaway Princess worth a hefty ransom - Permanent upgrades: train each monster's HP, attack, and speed, plus 18 unique Traits that deepen what each monster does best - Retro pixel art, chiptune sounds, and classic RPG-style windows - Quick runs: one game takes just a few minutes - Premium game: pay once, no ads, no in-app purchases Every hero you defeat becomes nutrients for your dungeon. Nothing is wasted. Protect the Demon King. The shovel is mightier than the sword.

Ratings & Reviews

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■ Monster Traits A new tab in Power Up. Pick a monster and buy the two upgrades only that monster has. Speed up Puni splitting, keep Lizzy from starving, make Batty deadly against ranged heroes, make Webby's webs harder to tear — 18 traits in all, two for each of the 9 monsters. The monsters you invest in now change how your dungeon fights. ■ Background music Original music now plays on the title and codex screens, and during hero invasions. ■ New app icon Thanks for playing!

Version 1.1

The developer, kazu kaneko, 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 Not Collected

    The developer does not collect any data from this app.

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

    Accessibility

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

    Information

    Seller
    kazu kaneko
    Size
    20.1 MB
    Category
    Strategy
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 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 2 more
    • English, Japanese, Korean
    Age Rating
    13+
    • 13+
    • Learn More
    • Frequent
      Cartoon or Fantasy Violence

      Infrequent
      Guns or Other Weapons
    Copyright
    © 2026 kazu kaneko
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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