
Platform: Steam
Region: GLOBAL
Type: Key
Release Date: November 10, 2025
Important Notice:
⚠️ This content requires the base game Kingdom Come: Deliverance II in order to play.
Description
Mysteria Ecclesiae is a story-driven expansion for Kingdom Come: Deliverance II, taking players into the depths of the Sedletz Monastery. A mysterious disease spreads among the monks, and it is up to you to uncover the truth hidden behind sacred walls and forbidden knowledge.
Explore a closed religious community, investigate secrets, and face moral dilemmas where faith, fear, and survival collide.
Gameplay
Investigation-focused gameplay with exploration and decision-making
Stealth, dialogue, and problem-solving elements
Player choices influence outcomes and story progression
Authentic medieval atmosphere and environments
Story
Enter the monastery of Sedletz to stop the spread of a deadly illness. As you gain the trust of its inhabitants, you will uncover hidden sins, suppressed truths, and a mystery that threatens more than just the monastery itself.
Key Features
New story expansion set in a unique monastery environment
Deep narrative with moral choices and consequences
Immersive medieval setting and detailed world design
Designed to seamlessly integrate with the base game.