Galaxy Defense: Fortress TD

Contains adsIn-app purchases
108K reviews
Content rating
PEGI 3
5M+
Downloads
Content rating
PEGI 3
In-Game Purchases
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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
Defend planet from aliens in epic galaxy tower defense battles!
Updated on
Sep 18, 2026
Available on
Android, Windows*
*Powered by Intel® technology
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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

103K reviews
Lee Kent
April 27, 2026
it's a not bad game but bosses play out the same, it's like the game doesn't want to go through next level. it wants you spend money , it does this annoying thing where when you are about to win, all your turrets will fire in the same area and then you lose, it will let the swarm through. the Tesla coil needs fixing too, many times it will go through enemies without hit detection.
30 people found this review helpful
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Craig Henderson
June 26, 2025
A really cool and fun game with decent graphics and enemy designs. The biggest issue is the difficulty curve. I'm up to normal stage 35 now and, without spending money, it takes around 3 days to grind enough coins/components to upgrade turrets to a decent level. The RNG element when selecting turrets can be annoying as well. Also, £50 for no ads? Absolutely insane!
255 people found this review helpful
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James Rutherford
September 10, 2026
I don't often feel compelled to leave reviews, but this has left a bad taste. The game itself is pretty enjoyable, if grindy, but the ads are obnoxious. If you choose to watch an ad, there is often no way back to the game, and those that you can leave at the end go on for minutes. Not great if you only jumped on for a 5 minute game.
2 people found this review helpful
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What’s new

1. Added the new mode Season: Expedition. Players can unlock this mode at Lv. 60. Guilds must have at least 10 members at Lv. 60 or above to register for the mode. The first round of Season: Expedition will be released as a beta version. The schedule is as follows:
Registration: Sep 18 – 20
Expedition: Sep 21 – Oct 15
2. Added a new event: Kronos Exploration, starting on September 24. New players can unlock the event after logging in for 8 days.