# Red Siren: Space Defense — Planet Defender War Game

> Space defense game with futuristic combat, upgrades, and missions. (iPhone/iPad app by Istom Games Kft..)

- Source: https://appshunter.io/ios/app/red-siren-space-defense/id1433435153 (this page in markdown: same URL + `.md`)
- Developer: [Istom Games Kft.](https://appshunter.io/developer/333561719)
- Category: Games, Entertainment, Action, Casual
- Price: Free with in-app purchases
- Rating: 4.50/5 from 501 App Store ratings · 117 written reviews indexed
- Age rating: 9+
- Requires: iOS 12.0 · 323 MB
- Languages: American English
- Released: 2018-11-07
- Data updated: 2026-08-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/red-siren-space-defense/id1433435153/reviews.md

## What is Red Siren?

We are in 2138, the raw material resources on the Earth have been depleted. With the support of civil society the private companies have colonized the surrounding planets and utilizing their natural sources. Since the mining technology is not achievable for everybody, lots of people are organized in groups and start looting the planets. In response, the Exacorp established Red Siren squad to struggle against raiders. As a young soldier of the Red Siren you have to defend the bases and fight against the raiders who want to win at all costs...

Red Siren: Space Defense is a space war game with futuristic robots, tanks, ships and battle machines! Enjoy the amazing visuals, realistic effects, exciting battles, challenging missions! Discover marvelous planets, defend the base building, destroy all of the enemy’s robots! Unlock new levels in four different worlds, try every ships, weapons and upgrade them to be a real robot-destroyer! Try to demolish all of your enemies as fast as you can, accomplish the missions to get prizes! In this outworld battle you can fight against tanks, walkers and flying robots, war-planes, a loads of enemies with different arms and missiles! Get all of the ships and various weapons and upgrade them to raze the enemies to the ground! 

Key features: 
- Awesome graphic and visual effects 
- Lots of mechanics and robots 
- Multifarious ships 
- Various categories of weapons 
- Magnificent audiovisuals

Tips: 
- Try various weapons and upgrade your fav to the max level 
- Complete missions to get prizes
- Dodge the enemy’s ships and attack them from back 
- Do not be an easy target: Always keep moving your ship!

## Key features

- Futuristic robots, tanks, and ships
- Upgrade weapons and ships
- Defend bases
- Challenging missions
- Multiple worlds to explore
- Awesome graphics and effects

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| No Ads | $2.99 | one-time |
| Small Pack | $1.99 | one-time |
| Medium Pack | $2.99 | one-time |
| Large Pack | $5.99 | one-time |
| Ultimate Special Offer | $19.99 | one-time |
| Marvelous Special Offer | $11.99 | one-time |
| Awesome Special Offer | $5.99 | one-time |
| Red Siren Ship | $9.99 | one-time |
| Extra Large Pack | $9.99 | one-time |
| Ultimate Pack | $39.99 | one-time |


## What do users think of Red Siren?

Overall sentiment: positive

**Pros**

- 👍 Great game
- 🚀 Smooth gameplay
- 💎 Awesome graphics
- ⚡️ Fun and addictive
- 🎨 Unique twist on side-scrolling

**Cons**

- 🐛 Crashes and freezes
- 🔋 Drains battery quickly
- 🎮 Controls need improvement
- 💰 Intrusive ads and in-app purchases
- 🕹️ Jittery and sensitive controls

**Commonly reported bugs**

- Game freezes after completing certain levels
- Compatibility issues with newer iPad Pro devices
- Crashes on launch for some users

**Most requested features**

- More levels and worlds
- Additional ships and weapons
- Co-op multiplayer mode
- Tutorial and better onboarding
- Improved sound effects

## Recent user reviews (10 of 117)

All indexed reviews: https://appshunter.io/ios/app/red-siren-space-defense/id1433435153/reviews.md

### 5/5 — great game

*2026-01-03*

vevry nice

### 5/5 — Очень приятная физика и прекрасная графика👍👍👍

*2025-10-27*

Классная игра💪

### 1/5 — Immer das gleiche

*2024-03-06, version 1.4.0*

Keine Abwechslung 👎🏻

### 5/5 — Nice one

*2024-01-30, version 1.4.0*

Simple but addictive

### 4/5 — Good game

*2023-01-17, version 1.4.0*

Fun game, amazing compared to most mobile games but the jet type enemy is a bit overpowered as they are usually invincible, rockets can technically kill them but those recharge too slowly for a swarm of jets, you simply have to hope they don’t go out of the combat area too much.

### 5/5 — Très bon shoot 👌👍

*2022-07-12*

Graphisme très bon 
Gameplay novateur 
A voir sur le moyen terme 

Ok les devs , thx 🙏👋👋

### 3/5 — Could be easier

*2022-06-28*

Great game, but lv 6 with two enemies at once is very frustrating and I couldn’t beat it. Cranking down the difficulty would be nice!

### 1/5 — Heyyyy after 2 years

*2021-04-30, version 1.3.0*

It’s time to OPTIMISE app for iOS 14.5!!!!

Or delete… 
I mean it for the Apple….. it’s a joke

### 4/5 — Atıyor

*2021-03-25, version 1.3.0*

Oyunun sadece başlığında bekliyorum ve ardından atıyor lütfen çağresine bakın

### 5/5 — Absolutely amazing!

*2020-12-19*

I love this game so much! I am not sure how it is not one of the most popular games in the App Store! I love the graphics and gameplay, although I would love more weapons and ships. Over all, amazing!

## Frequently asked questions about Red Siren

### What is Red Siren: Space Defense about?

Red Siren: Space Defense is a space war game where you play as a soldier defending planetary bases from raiders. You'll pilot futuristic robots, tanks, and ships, engaging in exciting battles with various enemy machines.

### What are the key features of this game?

The game features awesome graphics and visual effects, a variety of robots and mechanics, multiple ship types, diverse weapon categories, and magnificent audiovisuals. You can also upgrade your ships and weapons.

### Is Red Siren: Space Defense free to play?

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

### What kind of enemies will I face?

You will encounter a wide range of enemies including tanks, walkers, flying robots, and war-planes, all equipped with different arms and missiles. The goal is to demolish all of them as quickly as possible.

### How do I progress in the game?

You progress by completing challenging missions across four different worlds. Successfully finishing missions earns you prizes, and you can unlock new levels and upgrade your equipment to become a more effective defender.

## Version history (last 5 releases)

### 1.4.0 — 2021-08-16

- New dual joy control: complete freedom of control at the request of users
- Aiming control options (auto aim, full control aim) added
- Control scheme options added to settings
- Optimization
- Minor bug fixes

### 1.3.0 — 2018-12-26

- 10 new stages
- 2 new turrets
- new type of enemies

### 1.2.1 — 2018-12-01

- Stability improvements
- Some minor bugfix

### 1.1 — 2018-11-12

- Power consumption improvements
- Stability improvements
- Some minor bugfix

### 1.0 — 2018-11-07

No release notes.

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## More apps by Istom Games Kft.

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- [Flappy Nyan](https://appshunter.io/ios/app/flappy-nyan/id818349885)

All apps by Istom Games Kft.: https://appshunter.io/developer/333561719

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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 2026-08-23.*