Single-player games like Old Stars
Below are 9 single-player Steam games similar to Old 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 Old Stars page.
Ranked picks
- 1
Galactic Ruler
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Strategy and Indie with Old Stars.
Galactic Ruler offers real time strategy game play at both planetary level and in space! Lead your faction in diplomacy or conquest across a procedurally generated galactic map where any system might hold hostile enemies or resource riches. Develop advanced technologies to rule the galaxy!
- 2
AI War 2
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Strategy and Indie with Old 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
Sins of a Solar Empire®: Rebellion
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Action and Strategy with Old Stars.
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.
- 4
Planetary Annihilation: TITANS
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Action and Strategy with Old Stars.
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!
- 5
ENDLESS™ Space 2
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Strategy with Old Stars.
ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?
- 6
Gemini Wars
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Strategy and Indie with Old Stars.
Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.
- 7
Sid Meier's Civilization VII
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Strategy and Simulation with Old Stars.
The award-winning strategy game franchise returns with a revolutionary new chapter. Sid Meier's Civilization® VII empowers you to build the greatest empire the world has ever known!
- 8
Battlefleet Gothic: Armada 2
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Strategy with Old Stars.
Battlefleet Gothic: Armada 2 is the new real-time strategy game adapted from Games Workshop’s famous tabletop game that portrays the epic space battles of the Warhammer 40,000 universe.
- 9
New Stars
Single-player alternative to Old Stars — playable solo, no multiplayer required. Shares Action and Strategy with Old Stars.
Expand your own galactic empire across new stars, research technologies, and challenge great alien powers in this immersive 4X grand strategy game. Build interstellar colonies, and starbases to gather more resources. Explore a unique galaxy full of secrets, great perils, and limitless possibilities.