Update 1.20.1
Publisher on Steam
Steam edition · RPG / Simulation / Strategy
Crusader Kings III
Windows · macOS · Linux
“Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is…”
Publisher overview on Steam
From the publisher
Updates & announcements
Checked 2026-10-14 · Publisher posts for the Steam edition.
Your content route
Steam Workshop
Crusader Kings III manages mods in launcher playsets. Check game version, dependency order and save compatibility before using a new playset with an existing campaign.
- Read the selected package’s required game version and dependencies.
- Let the game or platform manage the supported installation route.
- Enable the intended content using the game’s own selection or mod menu, then test it before loading an important save.
Heimdall uses the route defined for this edition. A catalog listing does not verify an individual package’s compatibility.
Know your edition
Game details
Where to play
Windows · macOS · Linux
Platforms shown are for this Steam edition. Features and available content can differ on other stores and consoles.
Official game information ↗Steam features
Single-player · Multi-player · PvP · Online PvP · Steam Workshop
Release listed on Steam: 1 Sep, 2020
Before you play
Check the store’s current system requirements and available languages for your device.
System requirements ↗Sources & review
Reviewed October 13, 2026. This page covers Steam app 1158310. The game’s presence in the most-played snapshot is not a mod compatibility rating.
View game definition ↗