Galaxy Defense: Fortress TD

Contains adsIn-app purchases
4.4
88.9K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Mild Fantasy Violence
In-Game Purchases (Includes Random Items)
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About this game

🔥 2026’s unmissable tower defense experience
🎮 Enjoy the fun of Roguelike in this strategy game
🚀 Time-limited access for Project Ark Rebuild NOW!

This is the only and final choice for humanity. Fight to the end and protect Earth from alien invaders. Are you ready to take on the challenges of this thrilling tower defense game?

-Build Diverse Turrets
Each turret has unique skills and powers for you to explore. Unlock and upgrade them to resist enemy attacks and fight back effectively.

-Strategize Your Turret Assembly
Choose turrets based on enemy attributes and maximize their abilities. Continuously refine your strategy to achieve ultimate victory.

-Power Up Your Character
Equip your character with powerful chips and weapons, each offering different epic effects. Upgrading these items will significantly boost your combat power.

-Choose the Best Upgrades
Defeat enemies to recharge your energy and select from a variety of upgrades to enhance your combat power. Experience the thrill of a roguelike game!

-Collect Abundant Resources
Each battle rewards you with plentiful resources to strengthen your character and turrets. Win battles, collect rewards, and upgrade to progress further.

-Take on Expedition Challenges
Join forces with players worldwide to resist powerful alien enemies and defend the last line of our planet's defense. Remember, you are not fighting alone.

As the commander of this fortress, let’s protect our planet together!

Age Rating 13 Years Above in IGRS: Game content suitable for ages 13 and above (13+)

Customer Support: galaxydefense@cyberjoygame.com
Terms of service: http://www.cyberjoygame.com/agree.html
Discord Server: https://discord.gg/qc4QdGEtzf
Updated on
May 14, 2026
Available on
Android, Windows*
*Powered by Intel® technology
Events & offers

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.
This app may share these data types with third parties
App activity
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.4
85.1K reviews
William e
April 13, 2026
good game but you continuously grind on some levels for days and get nowhere. you level up equipment in hopes to get past the level only to be disappointed. all the long ads are ridiculous. if i don't click it in 5 seconds i am not going to use it. make them shorter or put the X sooner so we can enjoy the game more.
6 people found this review helpful
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Tyler Ross
June 1, 2025
Fun game and easy to learn, but the RNG of the cards is maddening. If you could customize cards you like and ones to not use, that'd be amazing. Otherwise you get stuck on levels like Normal 15 which seems impossible unless you get the perfect cards AND targeting RNG. Between that and the gear system being very hard to swap from mission to mission, it needs some fixes before it's worth a higher star rating in my opinion. Otherwise this is just a grind fest.
283 people found this review helpful
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Diana Strait
May 3, 2026
It's not a terrible game but I managed to clear levels 1-4 perfectly and then level 5 I'm hard stuck on beating at all. The pay wall is too expensive. The svip is 50 bucks. Sorry devs but this is not a $50 game. I get Xbox gamepass for $20 a month and have access to 500 games including new releases. Cloud play and phone play. Plus additional perks. I believe you are forced to pay in order to beat level 5. The swarm is too many and weapons are too wimpy. You're better off having a console or PC.
2 people found this review helpful
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What’s new

1. New Cards
The turret level cap has been increased to Lv.45, with new turret upgrade effects added. New Chain Cards have been added for turrets.
2. Ark: Rebuild Adjustments
An abnormal asteroid belt has appeared above the Ark, allowing enemies to launch surprise attacks under its cover.
To ensure fair combat across different devices, enemy spawn positions have been standardized.