Buy Kingdom Come: Deliverance II Mysteria Ecclesiae PC Key

This content requires the base game: Kingdom Come: Deliverance II

Looking for a cheap Kingdom Come: Deliverance II Mysteria Ecclesiae key? As of 3 Aug 2026 the cheapest key costs A$12.27 at Gameseal. We compare 15 offers from 12 stores, spanning A$12.27 to A$20.95. In keyshops the lowest price is A$12.27, in official stores it starts at A$20.95. With this many sellers the gap between the extremes is often several times over, so picking the store matters more here than waiting for a sale. The price ranks among the lowest we have recorded, cheaper on only 19% of days with data. This is an add-on, so you also need the base game to play it. On PC you buy a key that you activate in Steam or another client, and this is the widest market we track, with more than a quarter of games carrying a keyshop offer.

Release: 11 Nov 2025
Metacritic:
89 8.7
Buy in Official Store:
A$20.95
Buy in Keyshops:
-41%
A$12.27
In keyshops, the price is close to its historical low.
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Kingdom Come: Deliverance II Mysteria Ecclesiae
Windows
2w ago
DRM:
Steam
Steam
A$20.95

Keyshops (14)

DRM:
Steam
Steam
Gameseal
Kingdom Come: Deliverance II Mysteria Ecclesiae (DLC) (PC) Steam Key - ROW
Windows
1d ago
DRM:
Steam
Gameseal
A$20.95 ~A$12.27
-41%
-17% with SEAL17XDDcopy
-17% with SEAL17XDDcopy
Kingdom Come: Deliverance II - Mysteria Ecclesiae (DLC) Steam Key (PC) GLOBAL
5.0
Windows
4h ago
DRM:
Steam
Eneba
A$23.00 ~A$12.61
-45%
-10% with XDD10copy
-10% with XDD10copy
Driffle
Kingdom Come Deliverance II Mysteria Ecclesiae DLC (ROW) (PC) - Steam - Digital Key
Windows
7h ago
DRM:
Steam
Driffle
A$19.96 ~A$12.89
-35%
-6% with XDDEALS6copy
-6% with XDDEALS6copy
Kinguin
Kingdom Come: Deliverance II - Mysteria Ecclesiae DLC RoW PC Steam CD Key
Windows
3h ago
DRM:
Steam
Kinguin
A$23.00 ~A$12.93
-43%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
G2Play
Kingdom Come: Deliverance II - Mysteria Ecclesiae DLC PC Steam CD Key
Windows
3h ago
DRM:
Steam
G2Play
A$23.00 ~A$12.94
-43%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
Kingdom Come: Deliverance II - Mysteria Ecclesiae DLC PC Steam CD Key
Windows
3h ago
DRM:
Steam
Kinguin
A$23.00 ~A$12.94
-43%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
G2Play
Kingdom Come: Deliverance II - Mysteria Ecclesiae DLC RoW PC Steam CD Key
Windows
3h ago
DRM:
Steam
G2Play
A$23.00 ~A$12.96
-43%
-8% with XD8DEALScopy
-8% with XD8DEALScopy

About Kingdom Come: Deliverance II Mysteria Ecclesiae

Kingdom Come: Deliverance II Mysteria Ecclesiae - about the game

Kingdom Come: Deliverance II Mysteria Ecclesiae delivers a focused narrative experience within the medieval action RPG and adventure framework of its parent title. Players step into the role of Henry once more, this time navigating a contained mystery set inside the walls of a quarantined monastery where a deadly outbreak threatens everyone inside.

Gameplay

The core loop centers on investigation and decision making in a historically grounded setting. Henry assists a royal physician on a covert mission that quickly turns into a search for the source of an illness spreading through the Sedletz Monastery. Scarcity of resources heightens tension, forcing careful management of supplies while avoiding or confronting dangers in dimly lit corridors and restricted areas.

Stealth and observation play prominent roles alongside dialogue choices that shape how events unfold. Players gather information through conversations with inhabitants who each hold their own motives, then use that knowledge to progress through a series of interconnected tasks. Combat remains limited compared to the broader game, shifting emphasis toward deduction and survival within the enclosed environment.

Choices made during the investigation influence multiple possible endings, rewarding thorough exploration of the monastery's detailed spaces. The location itself becomes a character in the story, with its architecture and daily routines providing context for the unfolding events.

Game Modes

Mysteria Ecclesiae functions as a self-contained story expansion rather than introducing separate multiplayer or competitive modes. The primary experience revolves around a linear yet branching main questline consisting of seven quests that guide players through the mystery at their own pace.

Side activities tie directly into the central narrative, encouraging players to uncover additional details about the outbreak and the people affected by it. Completion of the content unlocks the monastery area for continued access afterward, allowing return visits without altering the main campaign progression.

Story and Setting

The expansion places Henry in the role of assistant to a renowned healer connected to the royal court. What begins as an escort mission evolves into a deeper probe of hidden agendas and a mysterious plague confined within the monastery's ancient grounds. Each faction and individual encountered carries distinct motivations that players must navigate through careful questioning and observation.

The setting emphasizes historical accuracy in its depiction of monastic life, from the routines of the inhabitants to the physical layout of the buildings. This creates an atmosphere of isolation and suspicion where every interaction carries weight.

Is It Worth Playing?

Players who enjoy story-driven RPGs with strong emphasis on dialogue, investigation, and meaningful choices will find value in the focused narrative arc. The content offers a distinct change of pace from open-world exploration, concentrating instead on a compact location filled with intrigue and consequence.

Reception highlights the quality of the writing and the satisfaction of piecing together the mystery, though some note the lighter emphasis on combat and new mechanics may not appeal to those seeking expanded systems. The experience lasts roughly seven to fifteen hours depending on thoroughness, and the monastery remains available post-completion for further interaction.

Those invested in the series' realistic medieval world and character-driven storytelling stand to gain the most from this addition, particularly if they appreciate self-contained tales that reward attention to detail over repeated action sequences.

Interface:
CzechGermanEnglishSpanish - SpainFrenchItalianJapaneseKoreanPolishPortuguese - BrazilRussianTurkishUkrainianSimplified ChineseTraditional Chinese
Audio:
CzechGermanEnglishSpanish - SpainFrenchJapanese
Subtitles:
CzechGermanEnglishSpanish - SpainFrenchItalianJapaneseKoreanPolishPortuguese - BrazilRussianTurkishUkrainianSimplified ChineseTraditional Chinese
Metacritic:
89 8.7

Minimum:

  • OS: Windows 10 64-bit (or newer)
  • Processor: Intel Core i5-8400, AMD Ryzen 5 2600
  • Memory: 16 GB RAM
  • Graphics: NVIDIA GeForce GTX 1060 (6GB), AMD Radeon RX 580
  • Storage: 100 GB available space
  • Additional Notes: SSD required

Recommended:

  • OS: Windows 10 64-bit (or newer)
  • Processor: Intel Core i7-13700K, AMD Ryzen 7 7800X3D
  • Memory: 32 GB RAM
  • Graphics: NVIDIA GeForce RTX 4070, AMD Radeon RX 7800 XT
  • Storage: 100 GB available space
  • Additional Notes: SSD required
Historical low
Price history from official stores
A$16.76
Steam
1 months ago
Price history from keyshops
A$11.77
Eneba
1 weeks ago
Join our Discord
Get instant help from our community and stay updated on the latest deals
Set Price Alerts
Get notified by email when game prices drop to your target
Create Free Account
Unlock wishlists, price alerts, and Steam sync

FAQ

9 questions

Before you start looking for a cheap Kingdom Come: Deliverance II Mysteria Ecclesiae PC key, check the essentials. Developed by Warhorse Studios. Published by Deep Silver. PC released date: 11 Nov 2025. Genres: Action, RPG, Adventure. Categories: Family Sharing, Single-player, Downloadable Content, Steam Achievements, Full controller support, Custom Volume Controls, Playable without Timed Input, Stereo Sound, Surround Sound. Age rating: PEGI 18.

Q

Where to buy a cheap Kingdom Come: Deliverance II Mysteria Ecclesiae Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Kingdom Come: Deliverance II Mysteria Ecclesiae key for as low as A$12.27. This deal is available at Gameseal and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest Kingdom Come: Deliverance II Mysteria Ecclesiae price on PC. Check the Kingdom Come: Deliverance II Mysteria Ecclesiae price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Kingdom Come: Deliverance II Mysteria Ecclesiae Steam price is A$20.95. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find Kingdom Come: Deliverance II Mysteria Ecclesiae on sale even outside seasonal promotions. We currently detect 15 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Kingdom Come: Deliverance II Mysteria Ecclesiae is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

The cheapest offer came most often from Eneba: 88 of 160 days with data. The price reached its historical low on only 1 day out of 160 days with data. The current price ranks among the lowest we have seen: it was cheaper on only 19% of days with data. We have recorded offers from 13 stores in total, and from 8 in the most recent reading.

Yes. Kingdom Come: Deliverance II Mysteria Ecclesiae has an official page on the Steam Store. You can also buy a Kingdom Come: Deliverance II Mysteria Ecclesiae Steam key from third-party sellers. Our price comparison currently includes 15 offers with Steam DRM. Pick one to ensure your Kingdom Come: Deliverance II Mysteria Ecclesiae download happens on Valve's platform.

Not at this time. Valve marks Kingdom Come: Deliverance II Mysteria Ecclesiae as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

According to our data Kingdom Come: Deliverance II Mysteria Ecclesiae is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Kingdom Come: Deliverance II Mysteria Ecclesiae deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for Kingdom Come: Deliverance II Mysteria Ecclesiae

1 Gameseal Gameseal Keyshop
-41% A$12.27
2 Eneba Eneba Keyshop
-45% A$12.61
3 Driffle Driffle Keyshop
-35% A$12.89
4 Kinguin Kinguin Keyshop
-43% A$12.93
5 G2Play G2Play Keyshop
-43% A$12.94

Want to buy at the best moment? Set a price alert on XD.deals and get notified when Kingdom Come: Deliverance II Mysteria Ecclesiae hits its next historical low.

Create Alert