UnderDark: Defense

Contains adsIn-app purchases
71.5K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Mild Fantasy Violence
In-Game Purchases (Includes Random Items)
Learn more
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About this game

Protect the last campfire in UnderDark: Defense. Place towers, shape the enemy's path, and hold back waves of monsters. Your choices change the battle.

• Build your own defense with different towers.
• Choose one of three buffs and develop your strategy.
• Combine tower abilities to face powerful bosses.
• Play with one hand and keep the flame alive.

3 million downloads worldwide.
Build your defense, choose your buffs, and protect the last campfire.
Updated on
Sep 29, 2026
Available on
Android, Windows*
*Powered by Intel® technology
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location, Financial info, and Device or other IDs
  • Data is encrypted in transit

Ratings and reviews

69.7K reviews
Jason Skumanich
April 12, 2026
Edit from 5 stars to 1. Once the light processing plant is unlocked, you have to watch an ad to play the map. No. no no no no. You are not going to get away with forced ads and expect a good review. I've watched countless ads on my own volition because I enjoy the game, and the reward boosts are a qol feature. When you force advertisements, you essentially admit your intention. Ads are not a core gameplay mechanic of any good game. Final review? 1/5.
36 people found this review helpful
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LiberalDust
May 11, 2026
Hello, this is the Underdark development team. We apologize for the frustration caused by the advertisement system. Your feedback regarding forced ads and gameplay experience will be carefully reviewed as we continue improving the game environment. E-mail: libertydust@gmail.com
Lysias Leviathan
April 27, 2026
3/12: 2* Way too many overpriced micro transactions. There's 2 battle passes for 1 season. Lots of text is incorrect. For example, pet combination says 2 pets but actually takes 4. Prop combination says it takes 2 pets... and there's an energy mechanic. So much wasted potential for the actually enjoyable tower defense part of the game. 4/27: 1* Still no fixes. Also the silkmoth mode is almost unplayable. The load icon for unlocking towers gets bigger each time until it blocks the entire screen.
17 people found this review helpful
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LiberalDust
March 13, 2026
Hello, this is the Underdark Development Team. We’re sorry the microtransactions and incorrect descriptions caused frustration. Issues like incorrect pet/prop combination text will be reviewed and corrected. Thank you for the feedback. E-mail: libertydust@gmail.com
M A
May 12, 2025
This is a great game, but multiplayer doesn't work no matter what my friend and I try, and playing with friends is the only reason he dled it. Had to knock off a star for that. Other than that disappointment, the game is fun and I love how many different towers, heros, and weapons there are to choose from to make the gameplay not just dumb luck. I wish I didn't have to go through so many menus after every level to collect all the perks. That's pretty annoying.
56 people found this review helpful
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LiberalDust
May 21, 2025
Thanks for your thoughtful feedback! We're glad you're enjoying the strategic variety. Sorry about the multiplayer issues—we're working on improving its stability. We'll also look into simplifying the post-level menus for a smoother experience.

What’s new

• Chat overhaul
• October season: Treasure Hunter Ā· Plague Doctor Ā· Agni
• Convenience and combat
• Treasure Hunter buff
• Stages 981–1000 and the Calcite ranking tier are added.
• SSS support heroes
• Relic buff
Content rating
Everyone
Mild Fantasy Violence
In-Game Purchases (Includes Random Items)
Learn more

App support

Phone number
+821031036858
About the developer
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Libertydust@gmail.com
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