Single-player games like Crusader Kings III
Below are 16 single-player Steam games similar to Crusader Kings III, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Crusader Kings III page.
Ranked picks
- 1

Victoria 3
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history.
- 2

Old World
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?
- 3

ENDLESS™ Legend 2
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
Lead your people to victory on an ever-evolving world in this strategy game featuring asymmetric factions led by powerful heroes. Build your empire, wield political influence, and raise grand armies to wage war in a race to uncover dark secrets buried within the planet.
- 4

Sid Meier's Civilization VII
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
The award-winning strategy game franchise returns with a revolutionary new chapter. Sid Meier's Civilization® VII empowers you to build the greatest empire the world has ever known!
- 5

Terra Invicta
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
- 6

Hearts of Iron IV
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history.
- 7

Europa Universalis IV
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.
- 8

Imperator: Rome
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
Dominate the classical Mediterranean in Imperator: Rome, a grand strategy game from Paradox Interactive. Navigate the dangerous waters of politics and diplomacy as you build up your provinces and conquer foreign lands. Now available with special content and the digital artbook.
- 9

Stellaris
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
- 10

Total War: WARHAMMER II
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy with Crusader Kings III.
Strategy gaming perfected. A breath-taking campaign of exploration, expansion and conquest across a fantasy world. Turn-based civilisation management and real-time epic strategy battles with thousands of troops and monsters at your command.
- 11

Crusader Kings II
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy and Simulation with Crusader Kings III.
Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.
- 12

The Sims™ 4
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Simulation with Crusader Kings III.
Play with life and discover the possibilities. Unleash your imagination and create a world of Sims that’s wholly unique. Explore and customize every detail from Sims to homes–and much more.
- 13

Game of Thrones
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares RPG with Crusader Kings III.
Experience an amazing adventure in one of the most fascinating universes! Amidst conspiracy and betrayal, try to survive the orchestrated machinations around the Iron Throne.
- 14

Lost Princess: Darkness
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Simulation with Crusader Kings III.
Third part of lost princess walking simulation. Walk in dark land and try to find princess and other items
- 15

Victoria II
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy with Crusader Kings III.
Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding...
- 16

Hearts of Iron III
Single-player alternative to Crusader Kings III — playable solo, no multiplayer required. Shares Strategy with Crusader Kings III.
Hearts of Iron III lets you play the most engaging conflict in world history, World War 2, on all fronts as any country and through multiple different scenarios. Guide your nation to glory between 1936 and 1948 and wage war, conduct diplomacy and build your industry in the most detailed World War 2 game ever made.