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

Dune: Spice Wars
Single-player alternative to Sovereign Stars — playable solo, no multiplayer required. Shares Strategy with Sovereign Stars.
A 4X real-time strategy game from the developers of the critically acclaimed Northgard. Set in Frank Herbert’s groundbreaking Dune universe, you must lead your faction and battle for control and dominance over the harsh desert planet of Arrakis.
- 2

AI War 2
Single-player alternative to Sovereign Stars — playable solo, no multiplayer required. Shares Strategy and Simulation with Sovereign Stars.
The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.
- 3

Shadow Empire
Single-player alternative to Sovereign Stars — playable solo, no multiplayer required. Shares Strategy and Simulation with Sovereign Stars.
Shadow Empire is a deep turn-based 4X wargame with a unique blend of military focus, procedurally generated content and role-playing features. Players take the seat of the supreme ruler of a small nation, with the goal of reconquering a devastated planet.
- 4

Simulator of Ukraine 1991
Single-player alternative to Sovereign Stars — playable solo, no multiplayer required. Shares Strategy and Simulation with Sovereign Stars.
This game is a global strategy, which is primarily focused on Ukraine after leaving the Soviet occupation. Here you will be given control of Ukraine with the opportunity to change history and intervene in the events of that time.
- 5

Terra Invicta
Single-player alternative to Sovereign Stars — playable solo, no multiplayer required. Shares Strategy and Simulation with Sovereign Stars.
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
- 6

Medieval Kingdom Wars
Single-player alternative to Sovereign Stars — playable solo, no multiplayer required. Shares Strategy and Simulation with Sovereign Stars.
Rewrite medieval history through bloody siege combat in a fusion of RTS and Grand Strategy genres. Rule, build, and serve your King as a minor lord in medieval Europe. Experience siege, field and naval combat with an unseen degree of brutality. Rogue-like progression, epic towns and battles await…
- 7

Europa Universalis IV
Single-player alternative to Sovereign Stars — playable solo, no multiplayer required. Shares Strategy and Simulation with Sovereign Stars.
Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.
- 8

Warhammer 40,000: Gladius - Relics of War
Single-player alternative to Sovereign Stars — playable solo, no multiplayer required. Shares Strategy with Sovereign Stars.
Warhammer 40,000: Gladius – Relics of War brings you to a world of terror and violence. Four factions will engage in a brutal war for dominance over the planet’s resources. In the first turn-based 4X strategy game set in Warhammer 40,000 you will lead one of four unique factions.