Single-player games like Millennia
Below are 11 single-player Steam games similar to Millennia, 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 Millennia page.
Ranked picks
- 1

Sid Meier's Civilization VII
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Simulation and Strategy with Millennia.
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!
- 2

Old World
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Strategy and Simulation with Millennia.
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

HUMANKIND™
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Strategy with Millennia.
Rewrite history by shaping a civilization as unique as you are. Combine 60 cultures from the Ancient Era to the Modern Age to lead your empire to victory. Build thriving cities, outsmart rivals in epic battles, spread your influence and leave your mark on HUMANKIND™.
- 4

Ara History Untold: Anniversary Edition
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Strategy with Millennia.
Build a nation starting at any point in human history and compete for supremacy in this epic turn-based strategy game. Engage in diplomacy, fight wars, and go head-to-head with other leaders from history.
- 5

Terra Invicta
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Simulation and Strategy with Millennia.
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

ENDLESS Legend™ 2
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Simulation and Strategy with Millennia.
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.
- 7

Europa Universalis V
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Strategy with Millennia.
Use war, trade or diplomacy to satisfy your grandest ambitions and dominate five centuries of history in the newest version of Europa Universalis, Paradox Interactive's flagship historical grand strategy game.
- 8

Victoria 3
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Strategy and Simulation with Millennia.
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.
- 9

Surviving Mars
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Strategy and Simulation with Millennia.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
- 10

Tiny Civilization
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Strategy with Millennia.
This is a historical simulation game that promotes the development of civilization based on the match-3 Game. You'll need to gather resources, use skills, discover new technology, and lead humanbeing through a 10,000-year journey to the cosmos.
- 11

Heretic Operative
Single-player alternative to Millennia — playable solo, no multiplayer required. Shares Strategy with Millennia.
A unique digital boardgame with strategy and narrative elements, inspired by games like Pandemic, Arkham Horror, and Talisman. As a Heretic Operative, a secret mage sworn to oppose the Cult, you must harness the arcane without becoming lost in its power.