Single-player games like InterImperium
Below are 8 single-player Steam games similar to InterImperium, 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 InterImperium page.
Ranked picks
- 1
The Legend of Mala Tokmachka
Single-player alternative to InterImperium — playable solo, no multiplayer required. Shares Strategy and Simulation with InterImperium.
Build, expand, and arm a towering 2D fortress to withstand endless waves of ground and air attacks. Set in a nameless frontier village where a siege has lasted so long it became a legend, "The Legend of Mala Tokmachka" turns survival into myth.
- 2
Steel Division: Normandy 44
Single-player alternative to InterImperium — playable solo, no multiplayer required. Shares Action and Strategy with InterImperium.
Steel Division: Normandy is a tactical real-time strategy (RTS) game that pits players against AI enemies in a single-player campaign -- or against several opponents in massive 10-on-10 multiplayer battles.
- 3
Steel Division 2
Single-player alternative to InterImperium — playable solo, no multiplayer required. Shares Action and Strategy with InterImperium.
Steel Division 2 is a historically-accurate WW2 real-time strategy game set on the Eastern Front. Features 1:1-scale turn-based army management and real-time tactical battles with thousands of men at your order.
- 4
Ultimate General: Gettysburg
Single-player alternative to InterImperium — playable solo, no multiplayer required. Shares Strategy and Indie with InterImperium.
A Tactical Battle Simulator that allows you to command thousands of soldiers as a Union or Confederate General. The game features the most accurately created map, a non-linear battle campaign, complex morale, innovative control mechanics and smart AI.
- 5
Iron Front: Digital War Edition
Single-player alternative to InterImperium — playable solo, no multiplayer required. Shares Action and Strategy with InterImperium.
Command your own troops, man authentic weaponry and take to the sky in deadly warplanes.
- 6
Diplomacy is Not an Option
Single-player alternative to InterImperium — playable solo, no multiplayer required. Shares Action and Strategy with InterImperium.
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?
- 7
NOBUNAGA'S AMBITION: Sphere of Influence
Single-player alternative to InterImperium — playable solo, no multiplayer required. Shares Strategy with InterImperium.
Become a Daimyo of the Warring States period of Japanese history in NOBUNAGA'S AMBITION, a historical simulation game of conquest and domination. It is the 30th anniversary of this series and this current release, NOBUNAGA'S AMBITION: Sphere of Influence, is the crown of the series.
- 8
Unity of Command II
Single-player alternative to InterImperium — playable solo, no multiplayer required. Shares Strategy and Indie with InterImperium.
Unity of Command II is the sequel to one of the most critically acclaimed strategy games of all time; a game critics called 'the perfect gateway' into computer war games.