Idle Fortress Tower Defense v5.1.1
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About this app
Upgrade your Fortress fighting alien monsters.
You will play as a lieutenant who upgrades the Fort stronger to fend off waves of monsters attacking in a rush.
Upgrade your strength, defense, fire rate and dozens of features to make your fortress even stronger.
After each time you resist the attacks of Alien Monsters, you will receive more Coins to upgrade in Battle and Gold to upgrade outside of the Workshop. In addition, when you reach higher levels, you can unlock more new features that make you stronger.
Game Features: - Many maps and many monsters with special skills.
- Cards that add features to the fortress.
- Laboratory with many strong research works.
- Rich upgrade system.
- Many useful support packages.
- Idle gifts help you to earn more resources without doing anything.
- Simulate the battle between the fortress and the alien monster.
Tip: - Focus on the Research Room to speed up the game and speed up the resource search.
- Increased firing distance and rate of fire will help the Fortress last longer thanks to its extraordinary power.
If you have any suggestions or questions, do not hesitate to contact us via email.
Let's enjoy the journey of defense and upgrade!
Upgrade your strength, defense, fire rate and dozens of features to make your fortress even stronger.
After each time you resist the attacks of Alien Monsters, you will receive more Coins to upgrade in Battle and Gold to upgrade outside of the Workshop. In addition, when you reach higher levels, you can unlock more new features that make you stronger.
Game Features: - Many maps and many monsters with special skills.
- Cards that add features to the fortress.
- Laboratory with many strong research works.
- Rich upgrade system.
- Many useful support packages.
- Idle gifts help you to earn more resources without doing anything.
- Simulate the battle between the fortress and the alien monster.
Tip: - Focus on the Research Room to speed up the game and speed up the resource search.
- Increased firing distance and rate of fire will help the Fortress last longer thanks to its extraordinary power.
If you have any suggestions or questions, do not hesitate to contact us via email.
Let's enjoy the journey of defense and upgrade!
In-app purchases
$1.99 - $39.99 per item
Version Information
- Version
- 5.1.1
- Downloads
- 1M+
- Updated on
- Dec 2, 2025
- Released
- Mar 20, 2023
- Requires
- Android 7.0
What's New
Upgrade game engine
Ratings & Reviews
Developer Response
