Cosmic Siege is made and published by Crystal Cao. AppBrain is an independent app data site and isn't affiliated with Crystal Cao. The app name, icon, screenshots and description belong to Crystal Cao and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- September 4, 2025
- Size
- 288.4 MB
User feedback
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Store listing
By Crystal Cao, from the App Store
Description by Crystal Cao Written by the developer, not by AppBrain. Click to read.
In Cosmic Siege, you command a lone planet defending Earth from a relentless onslaught of meteors, alien ships, and cosmic monsters! Tap to aim, unleash powerful weapons, and strategize to survive as long as possible in this hyper-casual, endless space battleground!
Why you’ll love Cosmic Siege:
- Simple Gameplay: Easy to learn, addictive to master—perfect for quick sessions!
- Epic Upgrades: Unlock lasers, missiles, shields, and orbital nukes to crush enemies!
- Endless Survival Mode: Every run is unique, with procedurally generated waves!
- Boss Battles: Face gigantic alien motherships and meteor storms!
- Retro Pixel Art: Vibrant 2D visuals with explosive animations!
- How long can you protect humanity? Download Cosmic Siege now and find out!
Key Features:
- Defend Earth: Tap to shoot meteors, aliens, and bosses in chaotic space battles!
- Upgrade System: Unlock 10+ weapons (lasers, missiles)!
- Endless Survival: Compete for high scores in infinite waves!
- Boss Challenges: Defeat massive UFOs and meteor swarms!
- Retro 2D Art: Explosions, neon effects, and quirky alien designs!
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 288.4 MB
- Content rating
- High
Technologies used by Cosmic Siege
Releases
Updates seen on the App Store- Version
- 1.0.0
- Launched
- September 2025
No changelog data
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Rankings
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About the app and developer
About Cosmic Siege
Cosmic Siege is a games app developed by Crystal Cao.
User Ratings
The app has no ratings yet.
App Information
Cosmic Siege is freely available from the App Store. The app size is 288.39 MB. The latest version available is 1.0.0. The last update was on September 4, 2025.
Technical Requirements
The app has a content rating of High Maturity. The app has been available on the App Store since September 2025.
Developer information for Crystal Cao
Address:
Frequently asked questions about Cosmic Siege
Is Cosmic Siege free?
Yes. Cosmic Siege is free on the App Store.
Is Cosmic Siege still available?
Yes. Cosmic Siege is on the App Store, and the last update we saw was on September 4, 2025.
How large is Cosmic Siege?
Cosmic Siege is 288.39 MB.
Is Cosmic Siege suitable for children?
App Store gives Cosmic Siege a high maturity rating. It is meant for adults.
Who made Cosmic Siege?
Cosmic Siege was developed by Crystal Cao. It is listed in the games category on the App Store.
What are the best alternatives to Cosmic Siege?
People looking at Cosmic Siege also look at these games apps: Racket Battle, Electric Connect: Light On, Eat Em Up, Spinner Fighting Merge Battle, Speed Lane Go.