# UnderAttack: Idle TD — Space Tower Defense Shooter

> Space Tower Defense Shooter (iPhone/iPad app by OGULCAN SACLI.)

- Source: https://appshunter.io/ios/app/underattack-idle-td/id6756351933 (this page in markdown: same URL + `.md`)
- Developer: [OGULCAN SACLI](https://appshunter.io/developer/1855149869)
- Category: Games, Action, Simulation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 56 MB
- Languages: American English
- Released: 2025-12-29
- Data updated: 2026-05-18
- User reviews in markdown: https://appshunter.io/ios/app/underattack-idle-td/id6756351933/reviews.md

## What is UnderAttack?

Defend Earth from alien invasion! Command powerful starships, upgrade devastating weapons, and face epic boss battles across 10 chapters. Easy to learn, impossible to master. Join the fight and become the hero Earth needs!

INTENSE SPACE COMBAT
• Fast-paced tower defense shooter with smooth touch controls
• Dynamic enemy spawn patterns keep you on your toes
• Strategic buff system for tactical decisions during missions
• Adaptive difficulty that adjusts to your skill level

DEEP UPGRADE SYSTEM
• Unlock 7 legendary captains with unique combat abilities
• 5 weapon types: Cannon, Laser, Missile, Freeze Ray, Chain Lightning
• Strategic temporary buffs: shields, damage boost, critical hits
• Collect and upgrade 6 different starship classes
• Each ship has unique stats and weapon slots

EPIC BOSS BATTLES
• 50 boss battles across 10 unique planets
• Each boss has distinct attack patterns and strategies
• Massive capital ships and alien motherships
• Challenging boss stages with fewer but stronger enemies

PROGRESSION & COLLECTION
• 250 stages across 10 planets (25 levels per planet)
• 7 legendary captains with unique abilities:
  - Nova: Damage specialist
  - Vex: Critical hit master
  - Iron: Defensive tank
  - Blaze: Speed demon
  - Phantom: Stealth striker
  - Zeus: Lightning lord
  - Omega: Ultimate commander
• Strategic buff system with 15+ temporary upgrades
• Data currency for tactical decisions during missions
• Adaptive difficulty adjusts based on your performance

WHAT PLAYERS SAY
"Best mobile space shooter I've played this year!" - 5 stars
"Perfect balance of challenge and casual fun" - 5 stars
"Finally a shooter that doesn't force ads!" - 5 stars

100% FREE TO PLAY
• Download and play completely free forever
• Optional in-app purchases for faster progression
• No forced ads - watch for bonus rewards only
• Full offline play support - no internet required
• Fair difficulty with adaptive assistance for struggling players

PREMIUM FEATURES
• Stunning particle effects and explosions
• Original sci-fi soundtrack and sound design
• Regular content updates with new chapters and captains
• Cloud save - seamlessly play across devices
• Optimized for all iOS devices and tablets
• Portrait and landscape mode support
• One-handed gameplay option

PERFECT FOR
• Fans of classic arcade space shooters and tower defense games
• Players who love boss battles and strategy
• Anyone seeking quick 5-10 minute gaming sessions
• Collectors who enjoy unlocking characters and ships
• Casual and hardcore gamers alike

REGULAR UPDATES
• New chapters released quarterly
• Weekly balance updates based on player feedback
• Monthly events with exclusive rewards
• Active development team listening to community

Join the battle today! Download Under Attack: Idle TD and become the hero Earth needs. Command your fleet, upgrade your arsenal, and prove you're the galaxy's greatest defender!

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 50 Gem | $0.99 | one-time |
| Adventurer Bundle | $4.99 | one-time |
| 650 Gem | $7.99 | one-time |
| 350 Gem | $4.99 | one-time |
| Veteran Pack | $9.99 | one-time |
| Dreadnought | $9.99 | one-time |
| 130 Gem | $1.99 | one-time |
| 1500 Gem | $14.99 | one-time |
| Starter Pack | $2.99 | one-time |



## Version history (last 2 releases)

### 1.1.2 — 2026-01-20

What's New in This Version (1.1.2)

  • Push notifications: Never miss your daily rewards and stay updated on your fleet's status
  • Performance improvements and bug fixes
  • Improved game stability

### 1.1.1 — 2025-12-29

No release notes.

## More apps by OGULCAN SACLI

- [Neon Hash](https://appshunter.io/ios/app/neon-hash/id6755640687)
- [Image Wizard Pro](https://appshunter.io/ios/app/image-wizard-pro/id6756968079)

All apps by OGULCAN SACLI: https://appshunter.io/developer/1855149869

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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 2026-05-18.*