Recommended for you
Version
v3.5.2
Latest
Size
187.0 MB
Total
Category
strategy
Developer
LiberalDust
Views
449
Updated
2026-11-08
Screenshots
UnderDark Defense Mod is a strategy defense game that asks you to keep an eternal flame alive in a dark world. You control Bjan as enemies close in, using combat, upgrades, and defensive planning to protect the flame from being extinguished.
The flame is presented as the world's soul and treasure. Losing it brings destruction to the creatures of this world, so every battle is built around maintaining its protection as the central objective.
Defend the Eternal Flame
Your role is to fight for the eternal flame while waves of enemies threaten it. Bjan must defeat large numbers of hostile opponents to keep the flame safe, making direct combat part of the defense effort.
Difficulty increases as you advance. Your strength grows over time, but opponents also become stronger to match your progress, so later levels require more than repeating an early approach.
Build a Defense Strategy
Combat is only one part of the defense. You can improve your army and add combat skills to develop a stronger approach against enemies. These upgrades are meant to make fighting more efficient while helping Bjan stay protected.
Defensive towers add another layer to your strategy. Place and build them to act as shields around your position; they detect enemies from a distance and attack them automatically.
- Upgrade your army to strengthen your defensive approach as battles become harder.
- Add combat skills to give your strategy more options during enemy attacks.
- Build defensive towers that automatically spot and shoot enemies from afar.
- Use the leveling system by identifying a target, after which leveling is handled automatically in seconds.
Progress Through Stronger Battles
UnderDark Defense Mod connects progression to escalating enemy strength. As Bjan goes farther and becomes more powerful, the opposition rises with him, so protecting the flame remains the focus throughout the campaign.
MOD Features
- Menu
- God Mode
- Speed
- Menu
- God Mode
- Speed
What’s New
v3.5.2Fixed new-player login failures, ranking reward delivery, and reward popup errors. Improved stability.
Release notes published by the developer on Google Play.View on Google PlayRetrieved 2026-11-09
Verified package facts
These values are read from the installable file and cross-checked against the app's Google Play listing. JoJoy does not run antivirus scans and does not test each build on physical devices.
Data Safety
Published by UnderDark Defense’s developer on Google Play. It describes what the official app collects and shares, reproduced here so you can review it before installing.
- Data is encrypted in transitYour data is transferred over a secure connection
Data this app may collect
- Financial info
- Purchase historyAdvertising or marketing · Analytics
- Device or other IDs
- Device or other IDsAdvertising or marketing · Analytics
- Location
- Approximate locationAdvertising or marketing · Analytics
View on Google PlayRetrieved 2026-11-09
Mod Review
This build suits players who want to focus on holding the eternal flame through increasingly difficult battles, with God Mode and Speed listed as mod options. It may be less suitable for players concerned about data collection, since purchase history, device or other IDs, and approximate location are listed as collected. It also deserves a version check because version 3.5.0 improved launch compatibility in some environments. The 186.8 MB download and Android 7.0 minimum are practical requirements before installing.
What the mod changes
This modified build is labeled with Menu, God Mode, and Speed. The menu is the listed way the mod options are presented. God Mode and Speed are included as named mod functions for this build. The game itself remains centered on defending the eternal flame with Bjan, upgrades, skills, and defensive towers.
Pros
- You defend one clear objective, the eternal flame, which keeps each battle tied to a defined failure condition.
- Enemy strength rises with your progress, so advancing requires continued attention to army upgrades and combat skills.
- Defensive towers automatically detect and shoot distant enemies, adding protection alongside Bjan's direct fighting.
- The target-based leveling system handles leveling automatically in seconds after you identify a target.
Cons
- Google Play lists purchase history, device or other IDs, and approximate location among the data collected.
- The official 3.5.0 update improved launch compatibility, so this build may not include that compatibility change.
- The download is 186.8 MB and requires a device running Android 7.0 or later.
Verdict
Install it if the flame-defense objective, rising enemy strength, and listed Menu, God Mode, and Speed options match what you want. Before installing, compare this build's version with 3.5.0, which includes improved app launch compatibility in some environments.
FAQ
What is the goal in UnderDark Defense?
Your goal is to protect the eternal flame and prevent it from going out. The flame is the central objective of the game, and Bjan fights hostile enemies to keep it safe.
How do defensive towers work in UnderDark Defense?
You can build defensive towers as part of your strategy. They detect enemies from a distance and shoot them automatically, giving you support alongside direct combat.
How does progression work in UnderDark Defense?
Levels become harder as you advance. Bjan becomes stronger over time, while opponents also increase in strength to match your progress.
What does the modified build include?
This build is labeled Menu, God Mode, and Speed. These are the listed mod functions; the game still centers on defending the eternal flame with combat, upgrades, skills, and towers.
What Android version does UnderDark Defense require?
UnderDark Defense requires Android 7.0 or later as a minimum requirement. The download size is 186.8 MB, so available storage should also be checked before installation.
Version History
- v3.5.2Current187.0 MBAndroid 7.0 +Download Mod
- v3.5.0186.8 MBAndroid 7.0 +Download Mod