Single-player games like Castles & Castellans
Below are 8 single-player Steam games similar to Castles & Castellans, 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 Castles & Castellans page.
Ranked picks
- 1
Bergfried
Single-player alternative to Castles & Castellans — playable solo, no multiplayer required. Shares Strategy with Castles & Castellans.
Build realistic medieval castles and defend them against rival knights. Bergfried is a strategy game featuring organic castle building and tactical siege battles. Manage your lands, plan your defenses and lead your troops to victory!
- 2
Kuroba: Oghuz
Single-player alternative to Castles & Castellans — playable solo, no multiplayer required. Shares Action and Strategy with Castles & Castellans.
Kuroba is a historical RTS set in the brutal frontier of 13th-century Anatolia. Build settlements, manage logistics, and command armies in grounded, realistic combat. No magic, no heroes—only economy, strategy, and leadership determine who endures.
- 3
City States: Medieval
Single-player alternative to Castles & Castellans — playable solo, no multiplayer required. Shares Strategy and Indie with Castles & Castellans.
You are the leader of a city-state in high medieval Europe. Expand your city through deep city-building systems, build a trade empire across the known world, and lead men to war to defend trade routes in a high-stakes struggle of global strategy and brutal tower defense warfare.
- 4
Ground of Aces
Single-player alternative to Castles & Castellans — playable solo, no multiplayer required. Shares Strategy and Early Access with Castles & Castellans.
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!
- 5
Diplomacy is Not an Option
Single-player alternative to Castles & Castellans — playable solo, no multiplayer required. Shares Action and Strategy with Castles & Castellans.
Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?
- 6
Stronghold: Warlords
Single-player alternative to Castles & Castellans — playable solo, no multiplayer required. Shares Strategy with Castles & Castellans.
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!
- 7
Here Comes The Swarm
Single-player alternative to Castles & Castellans — playable solo, no multiplayer required. Shares Strategy and Indie with Castles & Castellans.
Here Comes the Swarm is a survival RTS with a pause button! Create your strategy, build, manage, and defend your settlements at your own pace. Take the fight to the hive mind and lead expeditions to deliver a deadly blow and eradicate your foes. Will you reclaim Ulora from the relentless Swarm?
- 8
Anno 1602 History Edition
Single-player alternative to Castles & Castellans — playable solo, no multiplayer required. Shares Strategy with Castles & Castellans.
Relive the beginnings of the Anno® series with Anno® 1602 History Edition, updated and optimized for current computers.