Single-player games like Starpoint Gemini
Below are 11 single-player Steam games similar to Starpoint Gemini, 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 Starpoint Gemini page.
Ranked picks
- 1

Starpoint Gemini 2
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required. Shares Simulation and RPG with Starpoint Gemini.
Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever.
- 2

Starpoint Gemini Warlords
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required. Shares Simulation and RPG with Starpoint Gemini.
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
- 3

Starpoint Gemini 3
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required. Shares Simulation and RPG with Starpoint Gemini.
Fight, loot, explore and craft in the living open world of Starpoint Gemini 3. Assemble your trusty ship and boost your RPG skills to face all challenges.
- 4

Endless Sky
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required. Shares Simulation with Starpoint Gemini.
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.
- 5

Between the Stars
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required.
Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.
- 6

Rebel Galaxy
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required. Shares Simulation with Starpoint Gemini.
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
- 7

Objects in Space
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required.
Objects in Space is a retro space game centred on 2D point-and-click stealth action in a massive open world. Players have their own customisable ships and can meet people, become a trader, bounty hunter, explorer, scavenger or all of them at once.
- 8

Kinetic Void
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required. Shares Simulation with Starpoint Gemini.
Kinetic Void is a 3D space adventure with a focus on customization and enjoyable space simulation. The shipyard allows players to construct their ship piece by piece. Ships can be as simplistic as a cockpit, a hull, a engine and a gun, or as complex as a player wants.
- 9

Sins of a Solar Empire®: Rebellion
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required. Shares Simulation with Starpoint Gemini.
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.
- 10

Fleet Command
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required.
International waterways become theaters of war when the world's most formidable maritime powers exchange their fatal blows. With entire fleets at your command, you must strategically deploy vessels from every class - frigate to aircraft to nuclear submarine - to maintain the precarious balance of naval power and gain position for the...
- 11

Star Trek: Starfleet Command Gold Edition
Single-player alternative to Starpoint Gemini — playable solo, no multiplayer required. Shares Simulation with Starpoint Gemini.
Dozens of missions & more than 50 ship designs put you in the captain’s chair for an amazing real-time space combat experience commanding ships from the United Federation of Planets, the Klingon Empire, the Romulan Star Empire, the Hydran Kingdom, the Gorn Confederation or the Lyran Star Empire!