Crusader Kings III
Crusader Kings III
Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is only the beginning as you guide your dynasty’s bloodline in the rich and larger-than-life simulation of the Middle Ages.

NATIVE SUPPORT
Crusader Kings III - Linux Technical Documentation
Crusader Kings III is a grand strategy game where you guide your noble house’s dynasty through the Middle Ages, ruling through love, war, and intrigue. The game has a native Linux version.
Status Check:
While a native Linux build exists, recent updates have introduced instability requiring the use of Proton.
TWEAKS & TRICKS
Wayland/Hyprland Compatibility: The game does not run on Wayland or Hyprland without specific launch options.
- Solution:
env --unset=SDL_VIDEODRIVER --unset=ELECTRON_OZONE_PLATFORM_HINT %command%
Post-Update Instability: Crashes frequently shortly after launching or returning to the main menu/desktop.
- Solution: Update your game to the public beta.
- Solution: Alternatively, use Proton.
Launcher Issues: Paradox launcher and CK3 may fail to launch in both native and Proton.
- Solution: Update your game to the public beta.
Performance Concerns: Native performance may be worse than Proton.
- Solution: Use Proton.
Verdict:
Crusader Kings III is currently viable for Linux gamers, but the native build requires updating to the public beta and may not provide optimal performance. Proton is a reliable alternative, especially on Wayland-based systems. A buy for Linux gamers willing to utilize Proton.