Single-player games like Sins of a Solar Empire: Trinity®
Below are 10 single-player Steam games similar to Sins of a Solar Empire: Trinity®, 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: Trinity® page.
Ranked picks
- 1
Sins of a Solar Empire II
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy with Sins of a Solar Empire: Trinity®.
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
Sins of a Solar Empire®: Rebellion
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire: Trinity®.
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
- 3
Rank: Warmaster
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire: Trinity®.
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.
- 4
Galactic Civilizations® II: Ultimate Edition
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire: Trinity®.
Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!
- 5
Age of Empires II: Definitive Edition
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy with Sins of a Solar Empire: Trinity®.
42 Civilizations, 229 Campaign Missions, Singleplayer, Co-Op, Multiplayer, In-Game Editor, Mods, Cross-play...It is good to be the king.
- 6
AI War 2
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire: Trinity®.
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.
- 7
Star Trek: Infinite
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy with Sins of a Solar Empire: Trinity®.
Star Trek: Infinite is a grand strategy experience that lets you play your own Star Trek story as the leader of one of four major factions in the galaxy. Follow the specially crafted story or blaze your own trail in the first Star Trek grand strategy game.
- 8
Northgard: Definitive Edition
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy and Indie with Sins of a Solar Empire: Trinity®.
Northgard: Definitive Edition is a critically acclaimed real-time strategy game based on Norse mythology. Lead your clan, uncover the secrets of a mysterious newfound continent and defeat your enemies to conquer the Throne!
- 9
Stellaris
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy with Sins of a Solar Empire: Trinity®.
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
Master of Orion 2
Single-player alternative to Sins of a Solar Empire: Trinity® — playable solo, no multiplayer required. Shares Strategy with Sins of a Solar Empire: Trinity®.
Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge.