Single-player games like Citadelum
Below are 13 single-player Steam games similar to Citadelum, 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 Citadelum page.
Ranked picks
- 1

Anno 117: Pax Romana
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Simulation with Citadelum.
Shape the Roman Empire in this genre-defining strategic builder game. Build cities while expanding your influence through Roman provinces. Govern using your economic prowess, diplomatic skills, or military might.
- 2

Nova Roma
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Simulation with Citadelum.
The glory of Rome is at your fingertips in this city-building game where you must appease the gods, enact laws, and develop complex supply chains to meet the needs of your citizens.
- 3

Settlements Rising
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Indie with Citadelum.
Settlements Rising is a medieval city building and colony management game. It offers a lively colony experience with simulated villagers, dozens of professions and resources, natural disasters, and raids, while providing full control over the colony through trade, production chains and datas.
- 4

Roman Triumph: Survival City Builder
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Indie with Citadelum.
At the farthest reaches of the empire, a new Roman city is born! Manage and grow your city, please the gods, and survive against barbarians and mythological threats to achieve Roman Triumph!
- 5

Pioneers of Pagonia
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Simulation with Citadelum.
Rebuild hope in a world that was lost in the fog. Lead your Pioneers across the isles of Pagonia, unite scattered tribes, raise thriving communities and discover the history of your people as you reclaim your world in the new story campaign.
- 6

Caesar™ IV
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Simulation with Citadelum.
Starting as governor of a newly formed province in the Roman Empire your goal is simple: advance up the empire's political ladder to become the next Caesar.
- 7

City Tales - Medieval Era
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Indie and Simulation with Citadelum.
City Tales is a medieval city builder, allowing you to unleash your creativity and shape vast cities that break outside a traditional grid. Plan each district for your citizens needs and aid your companions in their tales, creating a city to be proud of!
- 8

Pompeii: The Legacy
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Indie with Citadelum.
Rebuild Pompeii from the ashes and lead it through centuries of politics, intrigue, and survival. Shape laws, expand trade across the Empire, guide your city through disasters, and command legions in optional real-time battles. Your legacy begins now.
- 9

Caesar™ 3
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Simulation with Citadelum.
Prove your strength of mind and spirit and you just may be crowned Caesar!
- 10

Farthest Frontier
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Indie with Citadelum.
Protect and guide your people as you forge a town from untamed wilderness at the edge of the known world. Harvest raw materials, hunt, fish and farm to survive. Produce crafted items to trade, consume, equip and fight with as you battle for your survival against the elements and outside threats.
- 11

Tiny Civilization
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy with Citadelum.
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.
- 12

Poseidon
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Indie and Simulation with Citadelum.
Poseidon wants to return his beloved golden sharks back to the Greek seas, go to a small island and help God find his subjects!)
- 13

One Military Camp
Single-player alternative to Citadelum — playable solo, no multiplayer required. Shares Strategy and Indie with Citadelum.
Build your own military camp, manage the economy, recruit the best candidates and train them to become elite specialists. Send them on missions across the land to end the war once and for all!