Single-player games like Sins of a Solar Empire®: Rebellion
Below are 16 single-player Steam games similar to Sins of a Solar Empire®: Rebellion, 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 Sins of a Solar Empire®: Rebellion page.
Ranked picks
- 1
Sins of a Solar Empire II
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Simulation with Sins of a Solar Empire®: Rebellion.
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
- 2
Galactic Civilizations IV
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Simulation with Sins of a Solar Empire®: Rebellion.
Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.
- 3
Sins of a Solar Empire: Trinity®
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire®: Rebellion.
In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.
- 4
Rank: Warmaster
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Action and Strategy with Sins of a Solar Empire®: Rebellion.
Stranded on Mars with next to nothing, build a city, assemble a fleet, and expand your empire to survive a hostile solar system in this new take that combines elements of space combat and RTS inspired by the classics.
- 5
NEBULOUS: Fleet Command
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Simulation with Sins of a Solar Empire®: Rebellion.
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
- 6
Total War: SHOGUN 2
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy with Sins of a Solar Empire®: Rebellion.
Total War: SHOGUN 2 is the perfect mix of real-time and turn-based strategy gaming for newcomers and veterans alike.
- 7
AI War 2
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire®: Rebellion.
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.
- 8
4th Generation Warfare
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire®: Rebellion.
As the leader of a nation, dispatch and control your team of characters all around the world to destabilize your enemies and establish your supremacy. All methods are fair game: hacking, sabotage, political interference, military strikes, corruption, treachery, assassinations, data theft…
- 9
Stellaris
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Simulation with Sins of a Solar Empire®: Rebellion.
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
- 10
Distant Worlds 2
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Simulation with Sins of a Solar Empire®: Rebellion.
Distant Worlds 2 is a vast, pausable real-time 4X space strategy game.
- 11
Star Ruler 2
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire®: Rebellion.
Massive scale 4X-RTS set in space. Control hundreds of planets, manipulate galactic politics, research numerous advanced technologies, and command thousands of units and hundreds of planets in your quest for galactic dominance.
- 12
Supreme Commander
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy with Sins of a Solar Empire®: Rebellion.
For a thousand years, three opposing forces have waged war for what they believe is true. There can be no room for compromise: their way is the only way. Dubbed The Infinite War, this devastating conflict has taken its toll on a once-peaceful galaxy and has only served to deepen the hatred between the factions.
- 13
Sword of the Stars: The Pit
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire®: Rebellion.
A fun, fast, light-hearted, turn-based RPG, where the tradition of old school dungeon-diving games meets the sci-fi Sword of the Stars universe!
- 14
Mount & Blade: Warband
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Action with Sins of a Solar Empire®: Rebellion.
In a land torn asunder by incessant warfare, it is time to assemble your own band of hardened warriors and enter the fray. Lead your men into battle, expand your realm, and claim the ultimate prize: the throne of Calradia!
- 15
Divinity: Dragon Commander
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Action and Strategy with Sins of a Solar Empire®: Rebellion.
You are the Dragon Commander. Your mission it is to reunite a broken empire and become the new emperor. Success depends entirely on your ability to efficiently rule your empire, build invincible armies and lead them to victory.
- 16
STAR WARS™ Empire at War - Gold Pack
Single-player alternative to Sins of a Solar Empire®: Rebellion — playable solo, no multiplayer required. Shares Strategy with Sins of a Solar Empire®: Rebellion.
Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld?