Defense Legend 4: Sci-Fi TD

Contains adsIn-app purchases
4.7
38.3K reviews
1M+
Downloads
Content rating
PEGI 7
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About this game

🛡️ Defense Legend 4: Tower Defense Strategy Game to Relax and Conquer!

Step into the next chapter of the Defense Legend series and enjoy thrilling tactical battles with a relaxing twist. Whether you're a fan of tower defense games or looking for a free strategy game to enjoy in your spare time, Defense Legend 4 offers both action and stress relief.

🌍 Storyline
The war between Humans and the Dark has escalated. With powerful magic and modern weapons, the Dark Force returns to conquer your bases from air, land, and underground. Your mission is to build your defense, upgrade your arsenal, and defend peace at all costs.

This is not just a simple combat game, but a challenge designed for both idle strategy lovers and hardcore players. Take command, relax, and enjoy the ride.

🎮 Core Features
💥 Strategic tower defense gameplay built for both casual play and tactical mastery

🧠 Control two powerful heroes supported by a high-tech defense system

🏗️ Upgrade turrets, unlock new skills, and experiment with merge strategy mechanics

❄️ Explore a variety of territories like icy lands, deserts, and forests – each with its own challenges

💤 Ideal for players seeking idle free strategic games to unwind and play at their own pace

📶 Fully offline-capable, making it perfect for travel or hands-free gameplay without internet

🎯 Designed as a tower defense game for beginners, yet rich in options for experienced players

⚔️ Experience a hybrid of tower defense mixed with RPG strategy in a fun, intuitive format

😌 A great game for stress-free battles, built for people who love to relax while defending

Whether you're searching for a relaxing game to play in your free time, or a full-blown tactical tower defense adventure, Defense Legend 4 has it all.

📲 Download now and build your legacy in this epic yet stress-free tower defense game!

Contact us for further support and information:
- Official Fanpage: https://www.facebook.com/Defense.Legend.X
- Official Group: https://www.facebook.com/groups/218680696589686
Updated on
Jul 15, 2025
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
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No data collected
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Data is encrypted in transit

Ratings and reviews

4.7
35.5K reviews
Ugur Erol
August 15, 2025
I played the same game before, the theme was WW2 but it's the same. I had put money into it and it was broken. Instead of fixing the game, they just turned it into a complete different game via update. It's now an airplane shooter. I would strongly advise against putting any money into games made by this company.
6 people found this review helpful
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Humarno Schoonwinkel
September 20, 2023
Game is pretty awesome, unfortunately you have to achieve a perfect score on easy, medium and hard before being able to move to the next level. In previous iterations, one could play 3 or 4 levels further on easy or medium before being forced to achieve a perfect score on hard. Now if you get stuck on a level, that's it. Your stuck and until you perfect it you can't play any further. Pretty frustrating if you can't make it past a specific level. Please change this.
245 people found this review helpful
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cecil suttle
November 29, 2021
Like it so far. Not the easiest but a good challenge. Have to figure some stuff out on your own because it doesn't really tell you much. Biggest complaint is that towers can be damaged/destroyed. You can't see all the field at once so you scroll down to place something, scroll back up and you've lost a tower! It would be nice to put towers wherever you want instead of premarked locations also. Other than that, great graphics and fun to play.
300 people found this review helpful
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