Summary
- Mysteria Ecclesiae serves as the third and final story DLC for Kingdom Come: Deliverance II focused on investigating a mysterious disease.
- Rather than combat, it emphasized stealth, dialogue, and detective work at the spreading pandemic in Sedletz Monastery.
- The DLC releases on November 11, 2025 with options to purchase as standalone for $13.99 or through Expansion Pass for $29.99.
It’s finally coming to an end for Kingdom Come Deliverance 2. Mysteria Ecclesiae, the third and final story for DLC, unravels the mysterious disease in Sedletz Monastery. It challenges you into detective work, especially on how far you will go to discover the truth. Check what you need to know about KCD2 Mysteria Ecclesiae DLC here!
A Mystery Unfolds at Sedletz Monastery

Mystery Ecclesiae begins when Henry receives a proposition from Peter of Pisek to protect Albich. He is a royal physician that has connections to former King Wenceslas. After some convincing, Henry sets out to accompany Albich to Sedletz Monastery to begin the real challenge.
While reluctant to assist Albich, the Abbot desperately needs his medical expertise to address the strange illness. This disease has been infecting several people within the monastery walls. However, this becomes accessible once players reach the Kuttenberg region as it exists independently from the main campaign.
This DLC weaves conspiracy into what initially appears as a simple outbreak to the true nature of the looming threat. Also, the plot focuses on preventing the disease from spreading while uncovering its mysterious origins.
Stealth Takes Center Stage

For this DLC, Mysteria Ecclesiae will prioritize stealth over combat encounters which was seen in previous releases. It’ll dress you in dark burglar outfits as you carefully navigate through shadows and avoid detection. Here, the monastery guards operate under different rules than typical enemies.
They will simply escort Henry back to the infirmary once caught during the lock down periods. It eliminates the engaging combat to focus more on the detective work. Moving forward, the nighttime will be your ally in this expansion as you’ll get an easier time to spot the guards.
With their torches, you can easily avoid them as you lurk in the monastery grounds. Although the challenges remain difficult, learning the routes will efficiently help you survive.
The Power of Dialogue and Investigation

As it takes the route of investigative work, conversation plays a crucial role in KCD2: Mysteria Ecclesiae DLC. So take your time talking with various NPCs to earn intel and access to the restricted areas. Plus, the expansion features memorable interactions, particularly with monks in the cellar.
It also allows you to build relationships with high-profile characters within the monastery. You’ll get to know their own motives and secrets including Albich, the physician accompanying Henry.
What’s Included and Pricing

KCD2: Mysteria Ecclesiae DLC offers approximately 12+ hours of content, alongside the new location of Sedletz Monastery. You’ll get to explore multiple chambers, relics, and clues that unlock as you go through the story. Besides, you will also discover new books and potions enhancing Henry’s abilities and survival tactics.
There are two ways to purchase this new Kingdom Come: Deliverance 2 DLC such as:
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- Standalone Expansion: $13.99
- Expansion Pass: $29.99
By purchasing the KCD2 Expansion Pass, you’ll get access to all three story expansions releases. If you already own this pass, then you’ll automatically receive access at no additional cost. This will be available across platforms including PlayStation 5, Xbox Series X/S, and PC.
Final Verdict: A Worthy Conclusion
Are you ready to solve the mystery behind the spreading disease in KCD2 Mysteria Ecclesiae DLC? This story expansion unfolds a new arc for Henry’s character as he goes on a mission to investigate the strange illness. The DLC launches on November 11, 2025, across multiple platforms, so hurry and grab your copies now!
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