UnderDark: Defense

Contains adsIn-app purchases
71.8K reviews
Content rating
PEGI 16
1M+
Downloads
Content rating
PEGI 16
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
Oct 31, 2026
Available on
Android, Windows*
*Powered by Intel® technology

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

70K reviews
Zed ely
July 12, 2026
on the fence - there are 2 big problems I'm having. First is that the lag freezes it up so you can't even move to defend. When you have too many towers with moving parts my phone just can't keep up, even if you turn all the settings down. .Another problem is you can't play over multiple devices even if you sync your account. I'm additional issue I'm adding now is the new PvP is as boring as hell. Everyone is playing an identical strategy because it's so obviously the only way to win.
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LiberalDust
July 23, 2026
Hello, this is the Underdark development team. We apologize for the lag, account synchronization, and PvP balance issues. We will review your feedback and work to improve performance, synchronization, and strategic variety. E-mail: libertydust@gmail.com
Rich Gardner
May 5, 2026
Really enjoy playing this, it's challenging at times, the graphics and gameplay are great. I paid for no ads but that's it, I'm on level 115 and have never hit a point where I felt not spending money has hurt the game. My only real gripe is that there's far too much going on (clicking around for the rewards every day feels unending at times), and you have to spend quite a lot of time on setup to get the best out of it, but maybe some people enjoy that.
1 person found this review helpful
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LiberalDust
October 19, 2026
Thanks for the thoughtful review and support! Daily reward collecting shouldn't feel like endless admin. We'll consider ways to streamline claiming rewards and make setup clearer, while keeping room for players who enjoy tweaking builds.
C1P2D
June 8, 2026
Great little game up to around campaign level 200 - sudden jump in monster HP to the point where 10 million attack (yes, million) isn't enough to take down basic monsters before they kill you. the only viable character is the pirate with the bombs. towers are now pointless, even when they are upgraded to 5m attack they basically do nothing. needs a bit of a re-balance I think - or, perhaps I've just hit the point where the game does unfortunately become p2w... other game modes are still fun.
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LiberalDust
June 16, 2026
Hello, this is the Underdark development team. Thank you for your feedback. Your comments regarding the campaign difficulty spike and hero/tower balance have been forwarded to the development team for review. E-mail: libertydust@gmail.com

What’s new

Improved app launch compatibility in some environments.