castle idler

70KS

Released Apr 24, 2026by Soy Boy GamesVery Positive(81% of 154 Steam reviews)Recent: 77% positive

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.

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Steam

SteamSteamOfficial

updated Jul 23, 2026

PLN 12.99

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Multipacks (4)

Castle Idler X Cult Nation

-10%PLN 21.51

castle idler x Space Rock Breaker

-10%PLN 22.93

Slay All Bosses: Idle X Castle Idler

-10%PLN 27.89

About castle idler

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.

Game details

Released

Developer

Publisher

Platforms

Steam Deck

Playable

Steam rating

Very Positive (81%)

Age ratings

IGRS 13DEJUS 6STEAM_GERMANY 6

castle idler price history

Lowest tracked price: PLN 9.09 (Jul 7, 2026) · current best: PLN 12.99.

castle idler player count & reviews

73% positive reviews in the last 30 days (81% all-time) · 25 peak players in the last 30 days.

castle idler — frequently asked questions

Where can I buy castle idler at the cheapest price?

Right now the cheapest offer for castle idler is PLN 12.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price castle idler has ever been?

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.

How many people play castle idler?

castle idler peaked at 25 concurrent players on Steam in the last 30 days (highest on Jul 9, 2026). The player chart on this page updates daily.

How can I get castle idler at a discount?

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.