Galaxy Defense: Fortress TD

Galaxy Defense: Fortress TD

Defend Planet, Beat Aliens!

9K ratings
1323 reviews
With Ads#51 in top-grossing 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
Galaxy Defense: Fortress TD screenshot #4 for iPhone
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 Grossing

📈 51+3

Strategy games

This game rose +3 positions in Strategy games chart.

Last updated on August 28, 2026.

Top Grossing

📈 68+6

Casual games

This game rose +6 positions in Casual games chart.

Last updated on August 28, 2026.

Top Free

📈 108+2

Strategy games

This game rose +2 positions in Strategy games chart.

Last updated on August 28, 2026.

Events

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User reviews

Ads

Your ads are almost 3min long. Totally ridiculous!!! If I could give you no stars, I definitely would.

2 min ads

Two minute freaking ads you guys can go pound sand that’s just plain stupid what the heck are you guys thinking I only gave 5 starts so you guys don’t just make it disappear to the bottom this is just a ad generator now shame on you guys taking a good game and turning into another ad based game 😡😡😡😡😡 of course if you just give them more money you might be able to play
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VERY Fun but VERY Infuriating

This game has an incredible gameplay loop and is absolutely a blast to play. BUT; there are multiple HUGE issues that impact my enjoyment heavily. First, it’s entirely luck-based. I paid $70 in in-app purchases just to speed up my progress, but the only thing that actually gets me through a hard level is when the game randomly gives me a boost. NOT when I watch an ad, NOT when I pay money, NOT when I do something special. Also, WHY ARE WE STILL USING ENERGY?!?!? Why can’t I just play the game? Why do you feel the need to limit how much of your game I can play at a time? It’s so predatory and evil, forcing me to spend money just to play a game I own. It’s despicable, greedy, and disgusting. All in all, the game itself is amazing. But the luck, the pay to win, and then not even winning when you pay, gets me so absolutely angry I have to walk away from the game for a day before I have an aneurism.
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The ads!!!

I’m getting ads that are 2 minutes and 50 seconds long and that’s just way too long for an ad

Good but tiring

I enjoy the game a lot but it’s so tiring with all the sub-menus and advertisements trying to making you spend money. Why not make a good game and pay once? Takes me ten minutes just to click through everything to collect what I need and be confronted with all of the “pay for more” buttons…

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.