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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.

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Developer
Publisher
Release
April 24, 2026
100 days ago
Steam Reviews
Very Positive158 reviews80.4%

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Game contextLatest: IGF Team
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Updated: Jul 13, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 13, 2026Publisher scaleThe operating scale of the game's publisher.
Updated: Jul 13, 2026Publisher statusHow the game's publishing relationship is classified.
Search Google: How is castle idler and Soy Boy Games funded?FundingThe known source of funding behind the game.
Updated: Jul 13, 2026Creative controlWho appears to retain creative control of the game.
Updated: Jul 13, 2026Release statusWhether and how the game has been released.

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About the Game

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.