Defense Legend 4: Sci-Fi TD Icon

Defense Legend 4: Sci-Fi TD

JoyUp
★★★★★ 4.6 Games v5.0.5080 1,000,000+ Contains Ads In-app purchases
Verified Safe & Direct
Download APK Google Play
Defense Legend 4: Sci-Fi TD Android app official video trailer cover art

Defense Legend 4: Sci-Fi TD APK Screenshots

Defense Legend 4: Sci-Fi TD Android Game Screenshot 1Defense Legend 4: Sci-Fi TD Android Game Screenshot 2Defense Legend 4: Sci-Fi TD Android Game Screenshot 3Defense Legend 4: Sci-Fi TD Android Game Screenshot 4Defense Legend 4: Sci-Fi TD Android Game Screenshot 5Defense Legend 4: Sci-Fi TD Android Game Screenshot 6

Defense Legend 4: Sci-Fi TD Game Information

Version
5.0.5080
Downloads
1,000,000+
Updated
Jun 29, 2026
Developer
JoyUp
Category
Games
Content Rating
Everyone 10+
Package
com.Gcenter.DefenselegendX.TowerDefense.TD
Platform
Android

Download Sources

Device Configuration

Split APKs Installation Guide

Some apps are distributed as Split APKs (multiple .apk files packaged together) to optimize resources. Standard Android installers cannot open them.

1. Download Split APKs Installer (SAI) from Google Play Store.
2. Download the app archive (.apks) using the download sources listed above.
3. Open SAI, click "Install APKs", choose the downloaded archive, and click Install.

About Defense Legend 4: Sci-Fi TD

🛡️ 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

Ratings & Reviews Histogram
5
84%
4
6%
3
3%
2
1%
1
6%

User Reviews

Michael Merrell Aug 16, 2024
★★★☆☆

A good game at the core, but the you hit a wall pretty quickly without spending money. Even after paying for the no-ads feature, which automatically gives you the rewards for anything you would normal have to watch an ad, the upgrade costs and hero purchase costs so high that it takes too long to upgrade without more purchases. The hero units unbalance the early game, making turrets almost unnecessary. The string table is missing a few strings, e.g. the description of the s-rocket turret.

Chris M Jun 16, 2023
★★★☆☆

I paid $0.99 for 1000 gold and 1000 blue diamonds. After I paid, the rotating circle appeared and kept rotating for a half hour. I finally stopped the game through settings and restarted it. I never received the 1000 gold and 1000 blue diamonds. I sent in a bug report and never got a reply. ..... UPDATED ..... If you would like to make this right, you can refund my $0.99.

cecil suttle Nov 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.

Raymond Amador Dec 5, 2022
★★★★★

Best tower defense game I've ever played. You only get promted to look at ads, to get more rewards. The only two problems are, the lack controls(pause, play, exit) and the star system. You need a certain number of stars to go to next level. Which means playing hard mode on easier levels. In each level you can go to settings at any time to watch 2 ads for an extra 400 each, of points to make upgrades or add extra towers. Needs more playable levels, too.

How to Download Defense Legend 4: Sci-Fi TD APK

  1. Enter the package name com.Gcenter.DefenselegendX.TowerDefense.TD on the APK Downloader.
  2. Select your device architecture (ARM64 recommended for modern devices).
  3. Click Download to get the merged APK file.
  4. Transfer and install the APK on your Android device.
  5. Keep Updated: Visit APKDER.COM regularly to search for and download the latest secure versions of your favorite apps.

Frequently Asked Questions

Yes! Every APK download provided by APKDER undergoes rigorous security verification. We verify that the cryptographic signature of the APK file matches the official signature from the developer, ensuring the APK is original, untouched, and free from any modifications.

To install it, you first need to enable "Unknown Sources" in your Android device's security settings. After downloading the APK file from APKDER, tap it to begin the installation and follow the on-screen prompts.

Yes! As soon as the developer releases a new version of Defense Legend 4: Sci-Fi TD, we will update and provide the updated APK on APKDER. You can simply download and install the new APK over the existing installation without losing your app data.

Yes. APKDER allows you to bypass geographic restrictions and download official APK files directly, even if the app or game is not officially available in your country's store.

A standard APK is a single installation package. An XAPK or Split APK contains multiple resource files (like OBB expansions or device-specific layout parts) packaged together. To install them, you can download splits individually or use dynamic helper tools like Split APKs Installer (SAI).

Security & Signature Verification

This APK download is 100% safe. We verify that the cryptographic signature of the file matches the official developer credentials. No modifications or adware are injected.

Wi-Fi connection information Basic Access
  • view Wi-Fi connections
Other Basic Access
  • view network connections
  • full network access
  • control vibration
  • prevent device from sleeping
  • Google Play license check
  • read Google service configuration
  • receive data from Internet

More By This Developer

Related Applications

Enlarged screenshot