Single-player games like Alliance of the Sacred Suns
Below are 8 single-player Steam games similar to Alliance of the Sacred Suns, 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 Alliance of the Sacred Suns page.
Ranked picks
- 1

Shadow Empire
Single-player alternative to Alliance of the Sacred Suns — playable solo, no multiplayer required. Shares Strategy and Simulation with Alliance of the Sacred Suns.
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.
- 2

Breachway
Single-player alternative to Alliance of the Sacred Suns — playable solo, no multiplayer required. Shares Strategy and Simulation with Alliance of the Sacred Suns.
Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.
- 3

Sid Meier's Civilization®: Beyond Earth™
Single-player alternative to Alliance of the Sacred Suns — playable solo, no multiplayer required. Shares Strategy with Alliance of the Sacred Suns.
Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.
- 4

Age of Wonders: Planetfall
Single-player alternative to Alliance of the Sacred Suns — playable solo, no multiplayer required. Shares Strategy with Alliance of the Sacred Suns.
Age of Wonders: Planetfall is the new strategy game from Triumph Studios, creators of the critically acclaimed Age of Wonders series, bringing all the exciting tactical turn-based combat and in-depth empire building of its predecessors to space in an all-new, sci-fi setting.
- 5

Old World
Single-player alternative to Alliance of the Sacred Suns — playable solo, no multiplayer required. Shares Strategy and Simulation with Alliance of the Sacred Suns.
Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?
- 6

Warhammer 40,000: Gladius - Relics of War
Single-player alternative to Alliance of the Sacred Suns — playable solo, no multiplayer required. Shares Strategy with Alliance of the Sacred Suns.
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.
- 7

Galactic Civilizations III
Single-player alternative to Alliance of the Sacred Suns — playable solo, no multiplayer required. Shares Strategy with Alliance of the Sacred Suns.
Build a civilization that will stand the test of time in the largest space-based strategy game ever! Choose from dozens of unique races and make a name for yourself across the galaxy through diplomacy, espionage, technological advances, and more.
- 8

Sid Meier's Civilization® V
Single-player alternative to Alliance of the Sacred Suns — playable solo, no multiplayer required. Shares Strategy with Alliance of the Sacred Suns.
Create, discover, and download new player-created maps, scenarios, interfaces, and more!