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castle idler PC Steam CD Key>
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Steam
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castle idler PC Steam CD Key

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Release date: 24/04/2026

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.