Underdark:Defense in IOS

Tactical Tower Defense

Walkthrough, Guilds, Tips on this special game

The Game

IT IS FREE!!!
In-App Purchase
  1. blade_pakcage - $2.99
  2. pack_remove_ads2 - $10.99
  3. season_hyperpass_1 - $18.99
  4. season_superpass_1 - $7.99
  5. add_speed - $7.49
  6. daily_package_02 - $2.99
  7. pack_remove_ads - $7.99
  8. daily_package_01 - $0.99
  9. Event Package 2 - $3.99
  10. exp_2x - $3.49

Version 2.9.82025-09-30

[Update – October 1]

New Hero

- Anubis joins the Underdark!

- Sweep through dungeons with the ancient hero Anubis!

New Pass

- 6 new Hero Passes will be added.

New Stage

- New stages will be added.

Event

- The Board Game mini-event will end on September 30 (KST).

- The Bingo Event will begin on October 1 (KST).

Bug Fixes and Improvements

- The Apocalypse Battlefield ranking will be reset.

- The Apocalypse Battlefield ranking calculation will change from cumulative damage to a point-based system.

- Fixed an issue where the Relic of Immunity in Guild Dungeon 1 would not deactivate.

- Fixed the shark appearance of the Cheerful Pirate skin.

- Fixed an issue where some pets were not being pushed back by heroes.


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 out of 5 with 3205 Counts
Age Rating 4+

Screenshots (Scroll Left & Right)

screenshot 0screenshot 1screenshot 2screenshot 3screenshot 4screenshot 5

Promotion Videos

[EMERGENCY DECLARATION] Official Int'l Main Trailer - YouTube

Related Videos

UnderDark: Defense - Review 3/5, Game Play Walkthrough No Commentary 3 - YouTube

UnderDark: Defense - Review 1/5, Game Play Walkthrough No Commentary 1 - YouTube

UnderDark: Defense - Review 2/5, Game Play Walkthrough No Commentary 2 - YouTube

Selunite Outpost [E18] - Baldur's Gate 3 - YouTube

Ep. 20 - Escaping the Underdark - YouTube

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