Single-player games like Fortain
Below are 8 single-player Steam games similar to Fortain, 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 Fortain page.
Ranked picks
- 1

Mandate Order
Single-player alternative to Fortain — playable solo, no multiplayer required. Shares Strategy and Indie with Fortain.
Mandate Order is a Warring States war city-builder set in ancient China. Build a stronghold, manage industries and logistics, recruit scholars from the Hundred Schools of Thought, raise armies, and command real-time tactical battles with thousands of soldiers.
- 2

Explorers of Esmar
Single-player alternative to Fortain — playable solo, no multiplayer required. Shares Strategy and Indie with Fortain.
Welcome to Explorers of Esmar! Build your settlement, master complex production chains. Claim the riches to explore and conquer the new island continent of Esmar!
- 3

Stronghold: Warlords
Single-player alternative to Fortain — playable solo, no multiplayer required. Shares Strategy and Simulation with Fortain.
Besiege Great Khans, Imperial warlords and Shōgun commanders in Stronghold: Warlords, the latest 'castle sim' from Firefly Studios. Command AI warlords across the battlefield as you build a castle economy and new gunpowder-fuelled siege engines!
- 4

Stronghold: Definitive Edition
Single-player alternative to Fortain — playable solo, no multiplayer required. Shares Strategy and Simulation with Fortain.
Greetings sire! Your stronghold awaits you. Build a castle economy, besiege unforgettable villains and return to the 'castle sim' that started it all. Experience this classic RTS with upgraded visuals, modernised gameplay, Steam multiplayer and a new campaign.
- 5

Nebuchadnezzar
Single-player alternative to Fortain — playable solo, no multiplayer required. Shares Strategy and Indie with Fortain.
Create and customize cities in Nebuchadnezzar, a classic isometric city-builder where careful planning and define your rise as a ruler in ancient Mesopotamia.
- 6

Farthest Frontier
Single-player alternative to Fortain — playable solo, no multiplayer required. Shares Strategy and Indie with Fortain.
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.
- 7

Ground of Aces
Single-player alternative to Fortain — playable solo, no multiplayer required. Shares Strategy and Simulation with Fortain.
Take command of a remote military air base during World War II. Build your own airfield, manage iconic aircraft and oversee your crew’s well-being. Prepare them against air raids and send your pilots on dangerous missions. Survive and help your nation win the war!
- 8

Republic of Pirates
Single-player alternative to Fortain — playable solo, no multiplayer required. Shares Strategy and Simulation with Fortain.
Establish and grow a pirate utopia during the Golden Age of Piracy. Create a resource-based economy, engage in real-time naval combat, and conduct diplomacy with rival powers. Explore the far reaches of the Caribbean in search of the ultimate fortune and glory.