# Polygon Defense: Idle TD — Endless idle tower defense

> Endless idle tower defense (iPhone/iPad app by Robert Sittig.)

- Source: https://appshunter.io/ios/app/polygon-defense-idle-td/id6788293124 (this page in markdown: same URL + `.md`)
- Developer: [Robert Sittig](https://appshunter.io/developer/1711088968)
- Category: Games, Action, Strategy
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 248 MB
- Languages: American English
- Released: 2026-07-11
- Data updated: 2026-07-24
- User reviews in markdown: https://appshunter.io/ios/app/polygon-defense-idle-td/id6788293124/reviews.md

## What is Polygon Defense?

How far can you get? Polygon Defense is a tower defense game with a clean geometric look: endless waves, ever-stronger enemies — and a defense that grows mightier every run. Play tactically for five minutes or let it run for hours: you set the pace.

BUILD YOUR DEFENSE
• 10 unique towers — from the rapid Tri Cannon to poison, frost, chain lightning and the Star Laser
• 3 upgrade paths per tower, then prestige for permanently stronger tiers
• A new procedurally generated map every run
• Every 5 waves: pick 1 of 3 random boosts and shape your run

ENDLESS WAVES, REAL VARIETY
• Bosses every 10 waves, elite mutations, armor, healers, splitters and phasing enemies
• From wave 100: challenge waves with special rules and bonus rewards
• Milestone chests every 25 waves — automatic, no interruptions

IDLE WHEN YOU WANT IT
• Auto-waves with SAFE mode: keeps running, only stops when enemies break through
• Auto-upgrades, auto-build and card auto-pick for fully hands-free runs
• Endless Protocol: automatically restarts after game over
• Rush button: skip waves up to just below your best record
• Offline progress: your towers keep fighting while the app is closed

PERMANENT PROGRESSION
• Earn prisms and unlock 30+ permanent meta upgrades
• Card collection with passive bonuses and active abilities (from wave 100)
• Research lab with real-time research (from wave 200)
• Daily tasks, achievements and login rewards

FAIR & PLAYABLE OFFLINE
• Completely free to play, no account, no internet required
• No forced ads — ads are strictly optional for bonus rewards
• Available in English and German

One tap, one wave — and suddenly it's 2 a.m. Have fun!


## Version history (last 5 releases)

### 1.6.1 — 2026-07-22

Bug fixes and UI Updates

### 1.6 — 2026-07-22

New: guided 4-step tutorial — build, start, upgrade and choose the first draft
New: visible goal path to wave 100 with rewards and chapter badges
Base towers remain permanently available after their first wave unlock
Cards now unlock after the first boss on wave 10, research after wave 20
Game Over explains the defeat, shows the next goal and recommends a suitable upgrade
New: five mastery levels per tower with visible rings and prism rewards
Fair daily tasks matched to your best wave, including one free reroll"
After two close defeats, a visible +10% damage bonus helps in the next run"
Fairer endgame: enemy health and armor scale much more gently after wave 60
Regeneration elites only heal after 1.5 seconds without taking a hit; Regen and Phase are clearly labeled
Octagon balance: after three stuns, enemies become immune to stun for 5 seconds

### 1.5 — 2026-07-20

Big balancing and UI update. Changed unlock wave for cards and science

### 1.3 — 2026-07-18

Update balancing and fixed a bug when rushed

### 1.2 — 2026-07-15

Balancing adjustments and bug fixes

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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 2026-07-24.*