Underdark:Defense in IOS

Tactical Tower Defense

Walkthrough, Guilds, Tips on this special game

The Game

USD 0

Version 3.0.4Wed Dec 31 2025

[Update Details – January 1]

New Hero

- The Nine-Tailed Fox joins Underdark!

- Defeat enemies together with the charming Nine-Tailed Fox!

New Stages and Special Notes

- Normal stages have been expanded up to Stage 890.

- 10 new stages have been added.

Events

- The 2026 New Year Event begins on January 1 (KST).

- The Board Mini-Game begins on January 1 (KST).

- The Bingo Event ends on December 31 (KST).

Bug Fixes and Improvements

- Lava Golem optimization has been applied.

- Lava Golem’s Fireball damage and movement speed have been increased.

- A Curse Tower tutorial has been added to Stage 21.


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!


Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.

Ratings & Reviews

4.8 out of 5 with 3585 Counts
Age Rating 9+

Screenshots (Scroll Left & Right)

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Underdark Defense is a thoughtfully designed mobile game that blends accessible mechanics with steadily increasing challenge. Players place and manipulate objects to influence in-game elements, solve levels, and progress through curated stages. The experience favors experimentation and polish, with simple controls and satisfying feedback.

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