Single-player games like Citadels
Below are 11 single-player Steam games similar to Citadels, 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 Citadels page.
Ranked picks
- 1
Towers & Goblins: The Last Stand
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
Build towers, manage resources, and lead units to defend your kingdom against goblins. Every decision you make determines your kingdom's fate.
- 2
Ignis Corruption
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Action and Strategy with Citadels.
In this Procedural City-Building and Survival game, you must manage your resources, expand your village, assemble an army and destroy the source of evil, which changed the entire eco system of a land that was once prosperous and peaceful.
- 3
They Are Billions
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
- 4
Stronghold: Definitive Edition
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
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
Farthest Frontier
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
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.
- 6
Final Outpost: Definitive Edition
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
Final Outpost is a survival strategy base-builder. You lead the last survivors of the apocalypse. Assign roles, craft tools, and manage resources carefully. Construct buildings, level up your citizens, and fortify your town against hordes of zombies. How many days can you survive?
- 7
Kingdoms and Castles
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
Kingdoms and Castles is a city-building simulation game about growing a kingdom from a tiny hamlet to a sprawling city and imposing castle. Make trade agreements, alliance, and war with neighboring AI controlled kingdoms. Each villager and resource is individually simulated.
- 8
Age of Empires II (Retired)
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
Age of Empires II has been re-imagined in high definition. With the release of Age of Empires II: Definitive Edition, this product will not be updated further.
- 9
Stronghold Crusader 2
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
Stronghold Crusader 2 is the long awaited sequel to the original castle sim. After 12 years Stronghold returns to the desert with a new 3D engine and powerful Havok Physics. Crusader 2 recaptures the original game’s addictive, fast-paced gameplay and authentic castle simulation.
- 10
Stronghold Crusader HD (2012)
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.
- 11
Age of Empires: Definitive Edition
Single-player alternative to Citadels — playable solo, no multiplayer required. Shares Strategy with Citadels.
Age of Empires, the pivotal real-time strategy game that launched a 20-year legacy returns with modernized gameplay, all-new 4K visuals, 8-person multiplayer battles and a host of other new features. Welcome back to history.