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castle idler is a short, relaxing incremental tower defense game with no waves. upgrade towers, collect coins, and unlock powerful prestige upgrades to defend your castle.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
castle idler is a short, relaxing incremental tower defense game with no waves. upgrade towers, collect coins, and unlock powerful prestige upgrades to defend your castle.
deploy a variety of towers along winding paths and continuously upgrade them.
progress through increasingly difficult levels with trickier paths and tougher enemies.
unlock powerful prestige upgrades that make your defenses exponentially stronger.
Right now the cheapest offer for castle idler is PLN 9.74 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for castle idler is PLN 9.09 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when castle idler drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
