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Screenshots

  • Underdark:Defense screenshot 1
  • Underdark:Defense screenshot 2
  • Underdark:Defense screenshot 3
  • Underdark:Defense screenshot 4

About Underdark:Defense

Defend the Flame from the dark! Level up, strategically place towers, and choose buffs to grow stronger. Keep the light alive! Defend the Eternal Flame: Experience the thrill of defending the flame from hordes of dark forces that besiege it! Feel the exhilaration as you clear stages, with each victory more satisfying than the last. One-Handed Gameplay: Enjoy easy-to-master controls, designed for one-handed play. Perfect for strategic fun anytime, anywhere. Customize Your Defense Strategy: Select buffs and strategically place towers to forge your path of resistance. As you level up and choose your growth buffs, your defense becomes an impenetrable fortress. Heroic Stand: Choose your guardians to stand against the night. Each hero brings unique abilities to the battlefield. Earn trophies, level up, and enhance your heroes to ensure the flame flickers on through the darkest nights!

Ratings & reviews

4.8

4K ratings

5 ★ 86% 4 ★ 9% 3 ★ 2% 2 ★ 1% 1 ★ 2%

What’s new

Version 3.4.0 · Updated September 26, 2026

Updated the App Store screenshots. Game content remains unchanged from the previous version.

App privacy

The developer, SeungHo Chung, reported these privacy practices to Apple.

Data Used to Track You

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

  • Location: Coarse Location
  • Identifiers: User ID
  • Usage Data: Advertising Data

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Location: Coarse Location
  • Identifiers: User ID, Device ID
  • Usage Data: Advertising Data, Product Interaction

Used for: Third-Party Advertising, Analytics, Product Personalization

Alternatives to Underdark:Defense

Looking for apps like Underdark:Defense? Here are 6 similar apps on the App Store. The highest rated is Slime Castle: Idle TD RTS Game (4.9/5), and all 6 are free to download.

Underdark:Defense vs. alternatives
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