Scroll to load trailers
Be the first to review 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.
Game modes: Single player
Right now the lowest price for Castle Idler we're tracking is $3.99 at Steam. We compare 1 store and prices refresh every few minutes.
The lowest price we've recorded for Castle Idler is $2.79 at Steam on August 20, 2026. The current best price is about 43% above that low.
80% of 159 Steam user reviews for Castle Idler are positive ("Very Positive").
Castle Idler released on April 24, 2026, developed by Soy Boy Games and published by Soy Boy Games.
Castle Idler is available on PC (Microsoft Windows), Mac. It supports single player.
Castle Idler last hit a new low of $2.79 on August 20, 2026 at Steam. Current best price is $3.99. Prices on this page refresh every few minutes, so check back around seasonal sales for new lows.
The cheapest Castle Idler price right now is $3.99 at Steam.
| Store | Discount | Price | Buy link |
|---|---|---|---|
 SteamBest price | — | $3.99 | Buy Castle Idler at Steam |
All-time low: $2.79 at Steam on Aug 20, 2026 — the current best price is 43% above it.
Prices in USD, refreshed every few minutes. Switch currency on this page for EUR/GBP/BRL and more.
