Galaxy Defense: Fortress TD

Galaxy Defense: Fortress TD

Defend Planet, Beat Aliens!

9K ratings
1335 reviews
With Ads#93 in free Strategy
🎮 Games
🎈 Casual
🏰 Strategy
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • February 1, 2025
  • August 11, 2026

Features

Galaxy Defense: Fortress TD screenshot #1 for iPhone
Galaxy Defense: Fortress TD screenshot #2 for iPhone
Galaxy Defense: Fortress TD screenshot #3 for iPhone
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Galaxy Defense: Fortress TD screenshot #5 for iPhone
Galaxy Defense: Fortress TD screenshot #6 for iPhone
Galaxy Defense: Fortress TD screenshot #7 for iPhone
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About

Defend Earth from alien invaders in this idle tower defense game. Build diverse turrets, strategize your defense, and power up your character with unique skills and weapons. Collect resources and take on global challenges to protect the planet.

Build diverse turrets with unique skills
Strategize turret assembly based on enemy attributes
Power up character with chips and weapons
Choose roguelike upgrades
Collect abundant resources from battles
Join global expedition challenges
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What users say

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What's New in Galaxy Defense

0.20.0

August 11, 2026

New Event: Lunar Farside Survey 1. The event unlocks for new players after they have logged in for 8 days. 2. Following Operation Dawn, the Guild shuttle fleets have completed their final assembly. The UEG has now issued the Lunar Far Side Survey Order, commanding all Guild fleets to depart immediately for the far side of the Moon, conduct field reconnaissance, and mine Moonstone—a key material required to prepare the Interstellar Warp Device.

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In-App Purchases

$9.99

Deep Space Expedition BP

Deep Space Expedition BP

Charts

Top Free

📈 93+4

Strategy games

This game rose +4 positions in Strategy games chart.

Last updated on September 17, 2026.

Top Grossing

📉 100-1

Strategy games

This game dropped -1 position in Strategy games chart.

Last updated on September 17, 2026.

Top Grossing

📉 129-5

Casual games

This game dropped -5 positions in Casual games chart.

Last updated on September 17, 2026.

Events

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User reviews

P2W

I’d reinstall if the ad removal pack was like $10 instead of $60+. Crazy. Hard to progress without it. Deleted. Shame because it’s a fun game.

BS

It takes forever to advance in this game, & it’s basically pay to play.. smh. The rewards are very low & trash.. 2 out of 10.

Hit the Pay Wall

Well, I finally did it. I hit the point in the game where you stop getting meaningful progression without spending into $500 event packages. I event bought the VIP ad-skip pass and the occasional monthly pass but those don’t get you to the next tier from where I am. Fun while it lasted. The next tier is for the whales.
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Features I would like

I’ve been enjoying this game very much for the last few months. There are a few minor things that would be awesome if they are possible.

1) Slightly smarter targeting for the main gunner when targeting invulnerable enemies/ enemies through which bullets cannot penetrate. It would be nice if the gun would target enemies it could actually damage instead

2) If it were possible to have a toggle for the gunner to continue targeting the nearest enemy while you are actively moving them around on the bottom, that would come in handy as well

3) Having some way to play with/ interact with your friends (and having a friends list) would be sweet. Either playing a stage with them or being able to trade gear or something

Thank you so much for your time and energy!
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Grind fest

I’ve been playing this game for a while now and don’t get me wrong, it’s fun! But Jesus is it a grind. You get to the point where it takes so many days of grinding rewards and upgrades just to go up 1 stage. And the rng is absolutely terrible. You spend so much in game currency for chances to gain helpful bonuses, gear, and items and it almost never falls in the favor of the player. I’ve been playing this for well over a year and still only have one fortress frame….dont play unless you like this ridiculous grind…
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Developer apps

User experience

🐞

Reported Bugs

2 issues

App crashes on certain devices

Bug

Connectivity issues causing lost progress

Bug

Requested Features

3 requests

Improved graphics and animations

Feature

More varied enemy types

Feature

Rebalancing of difficulty levels

Feature

FAQ

What is Galaxy Defense: Fortress TD?

Galaxy Defense: Fortress TD is an idle tower defense game where players defend Earth from alien invaders. It features strategic turret building, character upgrades, and resource collection to progress through challenges.

What are the key features of this game?

Key features include building diverse turrets with unique skills, strategizing turret assembly against different enemy types, powering up your character with chips and weapons, choosing roguelike upgrades, collecting abundant resources, and participating in global expedition challenges.

How is the game monetized?

The game is free to download and play, but it offers in-app purchases for items and upgrades. It also includes advertisements.

What platforms is Galaxy Defense: Fortress TD available on?

Based on the provided information, this is a mobile application. The specific platforms (iOS, Android) are not explicitly stated but are implied by the context of a mobile app.

What are common use cases for this game?

This game is ideal for players looking for a strategic yet accessible tower defense experience that can be played in short bursts due to its idle mechanics. It's also suited for those who enjoy progression systems, character customization, and cooperative play in defending against a common enemy.