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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.
7in-game now
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Voting closes Jun 23, 2026
Hot or Flop?
Minimum
Personalized for your PC hardware — there is no universal FPS number.
About this estimate
This range compares your graphics hardware with the game's requirements and expected performance profile. Estimates depend on your saved specs on WhatALaunch — they are not a single FPS figure that applies to everyone. Use them as a practical guide, not a guaranteed benchmark.
Actual performance can vary with graphics settings, drivers, CPU, memory, cooling, game updates, and background activity.
