Polygon Defense: Idle TD

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!