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Crusader Kings III: All Under Heaven - PC (Steam)
About
Claim the Mandate of HeavenThe world of Crusader Kings III is expanding. In All Under Heaven – the game’s fourth Major Expansion – the map extends to Asia to include the rich and storied lands of China, Japan, and Southeast Asia. Lead legendary warrior houses, manage vast empires and navigate intricate power struggles in this vibrant region filled with history, culture and innovation.Whether you aim...
- Platform
- Steam (PC)
- Developer
- Paradox Development Studio
- Publisher
- Paradox Interactive
- Release date
- 28 Oct, 2025
- Languages
- Genres
- RPG, Simulation, Strategy
- Product type
- Digital key / activates on Steam
Supported languages
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Description
Claim the Mandate of Heaven
The world of Crusader Kings III is expanding. In All Under Heaven – the game’s fourth Major Expansion – the map extends to Asia to include the rich and storied lands of China, Japan, and Southeast Asia. Lead legendary warrior houses, manage vast empires and navigate intricate power struggles in this vibrant region filled with history, culture and innovation.
Whether you aim to unify Japan under your house, claim the Mandate of Heaven in China, or thrive as a God-King in Southeast Asia, All Under Heaven expands the boundaries of Crusader Kings III on a monumental scale.
Key Features
-
China: The Mandate of Heaven
Ascend to the highest tier of power with the new Hegemony title, reigning supreme over all empires in the Chinese region.
Navigate the Dynastic Cycle, a living system of stability and chaos. Exploit periods of instability to rise to power and reshape the political landscape.
Explore the Celestial government system, unique to China. Earn Merit through deeds or the Imperial Examinations, gaining favor and influence.
Manage the Imperial Treasury to fund Great Projects, defend against disasters, or expand your influence with statecraft and might.
-
Japan: Rise of the Shogunate
Take control of a Japanese House and forge your destiny. Rise through the intricate courtly system to become a mighty Shogun or Kampaku regent.
Strengthen your position through alliances, intrigue, and ritual, or unite the Houses through the strength of your samurai armies; which path you take is for you to decide.
Lead the Imperial Yamato House to restore power to the Emperor, ushering in an age of imperial grandeur.
Experience the rich cultural traditions of Japan, where honor and scandal intertwine, shaping the lives of lords and vassals alike.
-
Southeast Asia: God-Kings and Temple Empires
Rule as a Devaraja with the Mandala Government, uniting tributaries into vast, temple-centered empires.
Choose what type of deity you want to be by selecting a Devaraja Aspect that grows in strength if you live up to its promise.
Pay tribute to the God King by performing Tributary Missions as a Tributary ruler, increasing favor with your subjects. Or become a God King yourself!
-
Explore the Silk Road, new Bookmarks and Flavor
Thrive along the expansive Silk Road, as wealth and innovation trace their way across a continent.
New historical starting bookmarks bring fresh perspectives and historical challenges. Play as iconic characters from the past or forge your unique path.
Immerse yourself in Asia's cultural, artistic, and historical nuances with new throne rooms, events, and traditions.
System Requirements
- 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
- Requires a 64-bit processor and operating system
- OS
- Windows® 10 (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
- Additional Notes
- SSD or NVME drive recommended
- OS
- Ubuntu 20.04 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
- OS
- Ubuntu 20.04 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
- Additional Notes
- SSD or NVME drive recommended
- OS
- macOS Monterey v12.6 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
- OS
- Catalina (MAC OS X 10.15)
- Processor
- Intel® Core™ i5-7600K
- Memory
- 16 GB RAM
- Graphics
- AMD® Radeon™ PRO 580 (8GB)
- Storage
- 20 GB available space
Best Reviews
👍 Recommended · Steam player · 6 Jul 2026
Definitely not your mother's CK experience. The new governments are divisive because they really are a whole different game. If you enjoy the Byzantines, you'll love China and Japan. If you wish that you could play wide while you play tall, you'll love Indochina. If you wish that raiding didn't involve any danger, you'll love the Pacific islands. If you wish you could play this game without engaging with the horrible war system, you'll love it all.
4 found this helpful
👎 Not Recommended · Steam player · 24 Jul 2026
Do not buy this if you only want to play Sea, It's a waste of money unless you want to play East Asia. Mandala government is the most weakest and buggiest government that had ever existed in Ck3 existence. Though if you play China, Japan, and Korea, it is worth it. I am leaving thumbs down since I only play Sea.
0 found this helpful
👍 Recommended · Steam player · 24 Jul 2026
Very nice! I marry midget and kill neighbor and make his hunchback daughter my concubine, great success!
0 found this helpful
Recent Reviews
👎 Not Recommended · Steam player · 24 Jul 2026
Do not buy this if you only want to play Sea, It's a waste of money unless you want to play East Asia. Mandala government is the most weakest and buggiest government that had ever existed in Ck3 existence. Though if you play China, Japan, and Korea, it is worth it. I am leaving thumbs down since I only play Sea.
0 found this helpful
👍 Recommended · Steam player · 24 Jul 2026
Very nice! I marry midget and kill neighbor and make his hunchback daughter my concubine, great success!
0 found this helpful
👍 Recommended · Steam player · 6 Jul 2026
Definitely not your mother's CK experience. The new governments are divisive because they really are a whole different game. If you enjoy the Byzantines, you'll love China and Japan. If you wish that you could play wide while you play tall, you'll love Indochina. If you wish that raiding didn't involve any danger, you'll love the Pacific islands. If you wish you could play this game without engaging with the horrible war system, you'll love it all.
4 found this helpful