Released Aug 6, 2026 $5.98 · −35% Positive Not counted on Steam profiles yet

CastleOn

By Lord Castleon

City Builder Military Colony Sim War Resource Management Medieval Base Building Strategy BuildingIsometricSingleplayerDiplomacy

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Reviews 24 Positive

Players now 2 Peak today 2

Followers, 30 days — Not enough history yet

CastleOn is a game tagged City Builder, Military and Colony Sim by Lord Castleon, released Aug 6, 2026. It has 24 Steam reviews (Positive). The Steam games most like it include Stronghold: Warlords, Stronghold Legends: Steam Edition and Stronghold 2: Steam Edition.

Build a castle! Grow economy, recruit troops from Europe and the Holy Land, man the walls and towers! Place traps and defeat attackers with arrows, wood and stone, fire, disease and cold steel! Survive the Third Crusade and conquer enemy lands in Castleon!

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<a href="https://launchrivals.com/games/3638920-castleon"><img src="https://launchrivals.com/games/3638920/badge.png" alt="CastleOn launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/3638920-castleon"><img src="https://launchrivals.com/games/3638920/badge.png?theme=light" alt="CastleOn launch date" width="320" height="84"></a>

Stronghold: Warlords 80% match · City Builder, Military, Colony Sim
Stronghold Legends: Steam Edition 77% match · City Builder, Military, Colony Sim
Stronghold 2: Steam Edition 77% match · City Builder, Military, Colony Sim
Stronghold Crusader HD (2012) 76% match · City Builder, Military, Colony Sim
Stronghold Crusader: Definitive Edition 76% match · City Builder, Colony Sim, War
Kingdoms and Castles 75% match · City Builder, Colony Sim, Resource Management
Settlements Rising 74% match · City Builder, Colony Sim, Resource Management
Banished 74% match · City Builder, Colony Sim, Resource Management
Primitive Society Simulator 73% match · City Builder, Colony Sim, War
Orrstead 72% match · City Builder, Colony Sim, Resource Management

Steam data

Everything Steam lists for CastleOn · record updated 1 hour ago

Steam store

Overview

App ID3638920

Release dateAug 6, 2026

Last change number40199203

Last record update1 hour ago

App type: Game
Developer: Lord Castleon
Publisher: Lord Castleon
Steam profile: Not counted yet: Steam is still getting to know this game, so it doesn't add to game counts or achievement totals · checked 1 day ago
Franchise: CastleOn

Windows Linux

Single-playerIncludes level editorSteam CloudSteam WorkshopSteam AchievementsFamily Sharing

Prices

Price · US$5.98

On sale40 of 41regions right now

Lowest seen · US$5.98Oct 23, 2026

Checked16 hours agoin 41 regions

IndonesiaRpIDR

Every price change is kept from Oct 23, 2026 on. Pick a region below to compare.

Patches

Build	Branch	Updated
26180236	public	Oct 24, 2026

Depots

ID	Name	Systems	Size	Download	Manifest
3638921	—	Windows	549.1 MB	432.4 MB	152500732632845949
3638922	—	Linux	562.9 MB	435.2 MB	7705568443244613326

Branch	Build	Updated	Access
public	26180236	Oct 24, 2026	Open

Configuration

Install foldersteamapps/common/CastleOn

Executable	Arguments	Systems	Description
Castleon.exe		Windows
run.sh		Linux

Space per player381.5 MB

Filesup to 1,000

Save locations3

Root	Path	Pattern	Systems
gameinstall	saves	*	All
gameinstall	editor	*	All
gameinstall		*.castleon	All

Achievements

Achievements190 hidden

Most unlocked41.9%There is always a way

Rarest0.6%Killing Fields

There is always a way Have 1000 wood while having 0 woodcutters. 41.9%
Merriment Have 100 happiness. 37.2%
Besties Reach 80 influence with any greater lord that isn't your puppet. 26.7%
Sniper Kill a ranged unit with a ballista. 25.4%
Conqueror Conquer all greater lords on a skirmish map. 25%
Hoarder Have 5000 food at once. 23.2%
Vassalage Turn any lord into your vassal. 23.1%
Zealot Have 100 faith at population of 100 or more peasants. 16.1%
The Architect of War Place a trebuchet on top of the round tower. 13.3%
Flurry Have a unit attack at least 4 enemies at once. 13.1%
Inferno Have 80 fields on fire at once. 12.1%
Admiral Have 20 galleys on a map at once. 10.5%
Stop hitting yourself! Let an enemy defeat themselves on a spiked barricade. 8.8%
Criminal Reach 85 corruption. 5.8%
Greek Fire Light a sea tile on fire. 5.6%
The Negotiator Send a delegation to everyone at once with Dedication technology. 3.2%
Plague Have 50 diseased fields at once. 1.8%
Kingdom of Heaven Use Coronation ability on The Leper King Baldwin. 0.7%