# Galaxy Defense: Fortress TD — Defend Planet, Beat Aliens!

> Idle tower defense game defending Earth from alien invaders with strategic turret assembly and character upgrades. (iPhone/iPad app by CYBERJOY LIMITED.)

- Source: https://appshunter.io/ios/app/galaxy-defense-fortress-td/id6740189002 (this page in markdown: same URL + `.md`)
- Developer: [CYBERJOY LIMITED](https://appshunter.io/developer/1602455961)
- Category: Games, Casual, Strategy
- Price: Free with in-app purchases
- Rating: 4.70/5 from 8,995 App Store ratings · 1,323 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 467 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2025-02-01
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/galaxy-defense-fortress-td/id6740189002/reviews.md

## What is Galaxy Defense?

This is the only and final choice for humanity. Fight to the end and protect Earth from alien invaders in space. Are you ready to take on the challenges of this idle 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+) 

Discord Server: https://discord.gg/qc4QdGEtzf
Email: galaxydefense@cyberjoygame.com

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Deep Space Expedition BP | $9.99 | one-time |
| Radar Energy Supply Pack 2 | $4.99 | one-time |
| Radar Energy Supply Pack 1 | $2.99 | one-time |
| Ember Pass | $9.99 | one-time |
| Ark-Rebuild Ticket 1 | $4.99 | one-time |
| Ark-Rebuild Pass | $9.99 | one-time |
| Ark-Rebuild Ticket 2 | $9.99 | one-time |
| BP-TurretProtocol | $19.99 | one-time |
| 320 Gems | $4.99 | one-time |
| BP-Medal-1 | $9.99 | one-time |
| BP-Honor-1 | $4.99 | one-time |
| 1400 Gems | $19.99 | one-time |
| Starter Pack 1b | $2.99 | one-time |
| Starter Pack 2c | $9.99 | one-time |
| 180 Gems | $2.99 | one-time |
| Starter Pack 2 | $9.99 | one-time |
| 680 Gems | $9.99 | one-time |
| Starter Pack 3 | $29.99 | one-time |
| SVIP-Lifetime | $49.99 | one-time |
| SVIP-Monthly 1 | $9.99 | one-time |


## Chart rankings

- #108 in Top Free · Strategy (US App Store)
- #67 in Top Grossing · Casual (US App Store)
- #51 in Top Grossing · Strategy (US App Store)

## What do users think of Galaxy Defense?

Overall sentiment: negative

**Pros**

- 🎮 Addictive gameplay
- 🎨 Vibrant visuals
- 🕹️ Engaging tower defense mechanics

**Cons**

- 💰 Monetization issues
- 🤯 Difficulty spikes
- 🕰️ Slow progression without spending

**Commonly reported bugs**

- App crashes on certain devices
- Connectivity issues causing lost progress

**Most requested features**

- Improved graphics and animations
- More varied enemy types
- Rebalancing of difficulty levels

## Recent user reviews (10 of 1,323)

All indexed reviews: https://appshunter.io/ios/app/galaxy-defense-fortress-td/id6740189002/reviews.md

### 1/5 — Ads

*2026-08-26, version 0.20.0*

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

### 5/5 — 2 min ads

*2026-08-23, version 0.20.0*

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

### 3/5 — VERY Fun but VERY Infuriating

*2026-08-20, version 0.20.0*

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.

### 3/5 — The ads!!!

*2026-08-20, version 0.20.0*

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

### 4/5 — Good but tiring

*2026-08-19, version 0.20.0*

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…

### 2/5 — AI Cheating

*2026-08-19, version 0.20.0*

The game used to be fair. Now the AI just straight up cheats during the events. Been playing for quite some time and investing. If cheating happens, I’m glad to spend my money elsewhere.

### 1/5 — bunz

*2026-08-17, version 0.20.0*

two min of ads is so bad like its gonna make ppl delete it

### 1/5 — ADS!

*2026-08-17, version 0.20.0*

First ad triggered in under a minute and the ad was longer than the gameplay.

### 5/5 — Fun & Offline

*2026-08-17, version 0.20.0*

This game is awesome because you can play offline without any lag. What makes it different is that some levels actually challenge you — you can get stuck and really have to work to beat them. Plus, there are no annoying pop-up ads, which is amazing. It’s super exciting to unlock new weapons and finally clear a tough level.

### 2/5 — Great and meh at same time

*2026-08-15, version 0.20.0*

I actually like the game...but it's basically impossible to do things without spending money. You cannot get the full/cool rewards from the first 7 days without spending money. It's literally impossible. 

I've gotten to level 15 normal and level 10 elite. Not close to beating either, so all I can do is watch video rewards to try and get more lacking resources to upgrade the towers. 

You can't do anything without spending money or watching videos. Which is sad. Ruins the playability of what could have been an awesome game.

## Frequently asked questions about Galaxy Defense

### 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.

## Version history (last 5 releases)

### 0.20.0 — 2026-08-11

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.

### 0.19.0 — 2026-07-29

1. Added Attribute Overview
Added a new Attribute Overview feature. 
Players can now view the total bonuses provided by major attributes across different systems. 
This feature can be opened by tapping the question mark icon next to Attack Power in the Character interface. 
2. Added Inventory System
Added a new Inventory feature. 
Players can now view most of the items obtained during gameplay. 
The inventory can be accessed by tapping the Items tab in the Character interface. 
3. Added Items to Exchange Shop
The following content has been added to the Exchange Shop:
Guardians-Roxy and Frank have been added to Project Ark: Rebuild. 
Turret Liveries-Aeroblast and Laser liveries have been added to Project Ark: Rebuild.

### 0.18.0 — 2026-06-29

1. New Event: Operation Dawn
- Unlocks after 8 days of login for new players.
- After successfully locking onto the insectoid homeworld coordinates through the Kronos Tracking, the United Earth Government has officially launched an interstellar expedition.
- The Defense Department calls on guilds worldwide to construct the TK001 Quantum Shuttle and initiates the pre-expedition campaign: Operation Dawn.
2. New Rewards available in Operation Dawn
3. Added Community Rewards: Follow our official community channels to claim additional rewards.

### 0.15.5 — 2026-06-03

Game experience optimization

### 0.15.4 — 2026-05-14

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.

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## More apps by CYBERJOY LIMITED

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All apps by CYBERJOY LIMITED: https://appshunter.io/developer/1602455961

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*