UnderAttack: Idle TD
OGULCAN SACLI Games iPhoneiPadiPod touch
UnderAttack: Idle TD is a free Games app for iPhone and iPad by OGULCAN SACLI. Requires iOS 16.4. Updated September 3, 2026.
- Price
- Free
- on the App Store
- Size
- 88 MB
- Age 4+
- Updated
- Sep 3
- 2026 · v1.2.0
Screenshots
About UnderAttack: Idle TD
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!
What’s new
Version 1.2.0 · Updated September 3, 2026
This is our biggest update yet. The game runs on a completely rebuilt engine. NEW - Redesigned victory and defeat screens with animated stats and rewards - New loading screen and an animated starfield battle background - New combat effects: chain lightning arcs, freeze shards, missile trails and a multi-stage boss destruction sequence IMPROVED - Smoother gameplay with a new high-performance renderer targeting 60 FPS on all supported devices - Damage numbers now show exact values, matching your weapon stats everywhere - Sharper hit feedback with screen shake and impact flashes FIXED - The First Victory achievement can now be unlocked correctly - Hull integrity on the results screen no longer shows long decimals - Many smaller fixes for stability, audio and rewarded ads
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App privacy
The developer, OGULCAN SACLI, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Purchases: Purchase History
- User Content: Gameplay Content
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction, Advertising Data, Other Usage Data
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- User Content: Gameplay Content
- Purchases: Purchase History
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction, Advertising Data, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Third-Party Advertising, Analytics, App Functionality
Alternatives to UnderAttack: Idle TD
Looking for apps like UnderAttack: Idle TD? Here are 6 similar apps on the App Store. The highest rated is Azure Dragon's Treasure (4.9/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| UnderAttack: Idle TD | – | Free | September 3, 2026 | |
| Weapon Master Idle: Action RPG | 4.5 / 5 (75) | Free | Oct 21, 2026 | Compare |
| FANTASY x HUNTERS | 4.4 / 5 (87) | Free | Oct 14, 2026 | Compare |
| Astro Defenders : Capt.Couch | 4.7 / 5 (79) | Free | Oct 20, 2026 | Compare |
| Greatest Estate Dev: Squad TD | 4.8 / 5 (328) | Free | Oct 28, 2026 | Compare |
| Azure Dragon's Treasure | 4.9 / 5 (191) | Free | Sep 21, 2026 | Compare |
| Pop Epoch: Civilization Tycoon | 4.8 / 5 (1,635) | Free | Oct 29, 2026 | Compare |