This content requires the base game Crusader Kings III on Steam in order to play.

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This content requires the base game Crusader Kings III on Steam in order to play.

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Planned Release Date: Q3 2026

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About This Content

Navigate through a medieval era with a rich religious life in By God Alone, a Core Expansion for Crusader Kings III. Wrestle with sin as your rulers try to live up to the tenets of their faith as you tangle with church authorities who have power on earth, as well as heaven. Instigate or settle religious debates, negotiate the limits of crown and Papal authority, and ponder the afterlife.

Crusader Kings III: By God Alone includes:

  • Playable Theocracies: Take control of landed realms headed by an archbishop or even the Pope himself. As the Papacy, new resources of power and wealth will be at your disposal.

  • The Christian “Situation”: A new persistent Situation for Christian realms, allowing actions and decisions connected to the development and progress of the Faith. You can participate in Ecumenical Councils to decide on religious tenets and beliefs.

  • Heresies: Religious rites that diverge too much from the standard Faith steal power and wealth from the Church and may be declared heretical, forcing you to either conform or rebel.

  • The Great Schism: In the 867 game start, the Christian church will eventually reach a crossroads for the faith. This can result in the Great Schism, separating Western Catholicism from Eastern Orthodoxy.

  • Monastic Holy Orders: Centers of both research and theological power, Monastic Holy Orders offer potent bonuses to those who host their headquarters. Chief among their offerings is spiritual fulfilment, for their prayers protect secular rulers from eternal damnation.

  • Changes to Religious Tenets: Revisions to the tenet system in Crusader Kings III now center characters’ relationships to their faith and what is appropriate behavior within that faith. Follow heretical beliefs that push the boundary of what is accepted or have your personal preferences adopted and accepted through internal church politics.

  • Spiritual Fulfillment system: Traits, actions and religious tenets work together to paint portraits of characters’ inner spirit and spiritual life. Sinful or virtuous actions are not merely a concern for stress, but can also affect relationships with God and concerns about the afterlife.

  • Archdioceses: New clerical titles that have religious authority over a geographical region independent of the secular rulers' lands. 

  • College of Cardinals: The Pope can appoint cardinals across Christendom. But, the struggle between secular and religious authority never ends - secular rulers can use their power to influence the appointment of Cardinals and the direction of the Church.

  • Dynamic Holy Sites: Faiths can now dynamically change their holy sites as they grow and change over time.

  • Cathedrals: Cathedrals can become the focal point for reverence of specific saints or other holy figures, leading to them becoming Holy Sites.

  • Puppets: In order to interact with the political machinery of the church, secular rulers will be able to puppet clerical characters so they can act on their behalf.

  • And more!

Mature Content Description

The developers describe the content like this:

This game features moderate violence portrayed in an unrealistic manner, with textual references of violence towards defenseless characters, such as children. There is use of offensive language, and depictions of nudity with textual references to sexual activity. There are also textual references to the use of illegal drugs and alcohol.

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows® 10 Home 64 bit
    • Processor: Intel Core i5-750 | AMD FX 4300
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GeForce GTX 660 | AMD Radeon HD 7870 | Intel Arc A310 | Intel Iris Plus G7 | AMD Radeon Vega 11
    • Storage: 20 GB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows® 10 Home 64 bit or Windows® 11
    • Processor: Intel Core i5-8400 | AMD Ryzen 5 1600X
    • Memory: 16 GB RAM
    • Graphics: NVIDIA GeForce GTX 970 | AMD Radeon RX 480 | Intel Arc A580
    • Storage: 20 GB available space
    Minimum:
    • OS: macOS Sequoia v15 or newer
    • Processor: Intel Core i5-6500 or newer | Apple M1 or newer
    • Memory: 8 GB RAM
    • Graphics: AMD Radeon R9 M380 2GB or better (for Intel systems) | Intel Iris Plus G7 | AMD Radeon Vega 11 | Apple M1 integrated GPU
    • Storage: 20 GB available space
    Recommended:
    • OS: macOS Sequoia v15 or newer
    • Processor: Intel® Core™ i5-7600K
    • Memory: 16 GB RAM
    • Graphics: AMD® Radeon™ PRO 580 (8GB)
    • Storage: 8 GB available space
    Minimum:
    • OS: Ubuntu 24.04 LTS
    • Processor: Intel Core i5-750 | AMD FX 4300
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GeForce GTX 660 | AMD Radeon HD 7870 | Intel Arc A310 | Intel Iris Plus G7 | AMD Radeon Vega 11
    • Storage: 20 GB available space
    Recommended:
    • OS: Ubuntu 24.04 LTS
    • Processor: Intel Core i5-8400 | AMD Ryzen 5 1600X
    • Memory: 16 GB RAM
    • Graphics: NVIDIA GeForce GTX 970 | AMD Radeon RX 480 | Intel Arc A580
    • Storage: 20 GB available space
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