
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.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.29/day in the week to Aug 21 → 0.71/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
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.
Genres
Engagement
Reviews
Themes across 70 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
不好玩 非常无聊
Very meh. After a certain point you have to prestige after every level. A vast amount of my time was the game running in the background. Not unusual for an idle game, but there isn't much here. It's probably possible to respec frequently and get through it quicker. There are better short incrementals.
It starts nice but in the later game it feels like a bad balance between a Tower Defense and an Incremental. It is too slow and limiting to be a good TD game, as things like the prestige mechanic and the money-farming prevent a satisfying use of strategy. Some of the levels are also too difficult to be a relaxing Idle game. The progression is very inconsistent. Sometimes, progression is fast and sometimes I found myself waiting several minutes without being able to do anything, and due to the Incremental nature of the game, you never know whether it's because you need to switch strategies or whether it's intended to just farm more before progressing. And you cannot switch builds without prestiging, which partially resets your progress again.
Media

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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, French, German, Spanish - Spain, Japanese, Portuguese - Brazil, Simplified Chinese, Russian, Polish, Korean, Italian, Indonesian +1 more
Hours played at review time, across 70 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
It's a rogueLike TD game, actually better than I thought at first
Bem gostosinho de jogar. perfeito pra relaxar e passar o tempo sem precisar de muito esforço. o 100% vem naturalmente enquanto você curte a progressão. espero que venha mais conteúdo ou uma sequência!
Very quick but very fun to play and master, definately recomend as a fun game to let in the background and play while you do other stuff.
decent idler
[h1]Castle Idler - Un soupçon d'idle, une pincée de tower defense, et beaucoup de satisfaction[/h1] Castle Idler c'est un tower defense incrémental développé par Soy Boy Games, sorti en avril 2026. Pas de vagues, pas de pression, juste des slimes qui avancent tranquillement vers votre château pendant que vous optimisez vos défenses. Pour moins de 4€, c'est une proposition difficile à ignorer. [h3]Mon avis perso[/h3] Le concept de ne pas utiliser de vagues d'ennemis donne au jeu un petit côté puzzle vraiment frais - il faut trouver la bonne combinaison de tours pour réussir l'objectif, ou bien tout brute forcer en mode idle. Et franchement, les deux approches fonctionnent. La recette marche bien, c'est un petit tower defense sans trop d'ambition qui tient exactement ses promesses du début à la fin. [h3]Les points faibles[/h3] Aucun à signaler. Pour ce qu'il propose et à ce prix, c'est difficile de trouver quelque chose à redire. [h3]Les points forts[/h3] Un concept frais dans le genre, un skill tree de prestige satisfaisant, une progression fluide et une montée en puissance qui se ressent vraiment. Et surtout, cette liberté de choisir entre jouer activement ou laisser tourner - c'est là que Castle Idler se distingue intelligemment. [hr][/hr] [b]Un coup de cœur à moins de 4€. Foncez.[/b]
Very good synthesis of tower defence & idler mechanics. Absolute bargain.
https://youtu.be/fYo1ysbYbFg Not exactly a pure idler (positive) the structure requires players to solve levels to make progress instead of waiting just waiting for income.
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Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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