Planet Defense: UFO
Space tower defense idle war
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Defend your planet from the UFO swarm — Mars, Venus & Titan events, satellites and offline play. In English, Русский, Español, Português, 中文.
Your planet is under attack. Hold the line.
Planet Defense: UFO is a fast, tactile space tower-defense: your home world sits at the center, alien ships swarm in from every direction, and every decision happens in seconds. Tap to build satellite turrets, upgrade your firepower mid-battle, and collect the coins your planet generates — then push one level further.
BUILD YOUR ORBITAL DEFENSE
• Tap "+" slots to deploy satellite turrets around your planet
• Upgrade 8 combat lines mid-run: damage, fire rate, range, bullet speed, satellite speed, pierce, repair and shields
• Every level unlocks more build slots — and brings bigger waves
FIGHT A REAL INVASION
• 6 enemy types with their own tricks: swarmers, speeders, tanks, splitters, exploders and turret-hunting shooters
• Enemies get tougher with every city — your defense has to evolve
• Lose the planet and you restart the city: your permanent progress always survives
GROW STRONGER FOREVER
• Earn cores from kills and victories, even when you lose
• Spend them on permanent upgrades: starting damage, planet HP, coin boosts and more
• Deep upgrade curves reward long-term investment
ROTATING LIVE EVENTS
• A new planet needs you every 2 days: defend Mars, Venus and Titan
• 5 difficulty tiers from Normal to Nightmare — pick your challenge
• Complete event tasks for huge core rewards, then admire your winning defense
PLAY YOUR WAY
• Sessions as short as one level or as long as one more city… again
• Optional rewarded boosts — no forced ads, no energy system
• Fully playable offline; localized in English, Español, Русский, 中文 and Português
Can you hold every city?
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• MOTHERSHIP BOSSES — every level now ends with a giant elite escort. Bring it down for bonus cores.
• WHILE YOU WERE AWAY — your planet keeps mining coins even when the game is closed.
• DAILY MISSIONS — three fresh tasks every day, each paying permanent cores.
• GALACTIC RANKS — a global leaderboard. Pick a call sign and climb.
• Optional reminders when your vault fills up or a new event begins.
The developer, Temirlan Kushkinbayev, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Temirlan Kushkinbayev
- Size
- 152.4 MB
- Category
- Strategy
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Cartoon or Fantasy Violence
Guns or Other Weapons
Contains
Advertising
- In-App Purchases
Yes
- Ad-Free Boost $5.99
- Galaxy Bundle $5.99
- Boost Amplifier $1.99
- Auto-Collector $3.99
- 2x Cores Forever $3.99
- Commander Bundle $1.99
- Core Reactor $3.99
- Coin Chest $2.99
- Starter Bundle $0.99
- 2x Coins Forever $2.99
- Copyright
- © 2026 Temirlan Kushkinbayev