Games like Between the Stars
Games like Between the Stars include Mount & Blade II: Bannerlord, Elite Dangerous, Rebel Galaxy, Kerbal Space Program, and SPORE™ Galactic Adventures. We matched them by the tags players give Between the Stars on Steam (Space, RPG, Action, Simulation, and Indie): closest matches first, and among equally close ones the better-known games.

Mount & Blade II: Bannerlord
Shared: RPG · Strategy · Action

Elite Dangerous
Shared: Space · Space Sim · Simulation

Rebel Galaxy
Shared: Space · RPG · Action

Kerbal Space Program
Shared: Space · Simulation · Space Sim

SPORE™ Galactic Adventures
Shared: Space · Action · Simulation

Space Pirates And Zombies 2
Shared: Space · Action · RPG

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Strategy · Indie

No Man's Sky
Shared: Space · Open World · Sci-fi

Starfield
Shared: Space · RPG · Singleplayer

鬼谷八荒 Tale of Immortal
Shared: Simulation · RPG · Singleplayer

Endless Sky
Shared: Space · Simulation · RPG

Starpoint Gemini Warlords
Shared: Space · RPG · Simulation

Space Rangers HD: A War Apart
Shared: Space · RPG · Simulation

X4: Foundations
Shared: Space · Simulation · Space Sim

EVE Online
Shared: Space · Space Sim · Simulation

X Rebirth
Shared: Space · Simulation · Action

Mount & Blade: Warband
Shared: RPG · Strategy · Action

Starpoint Gemini 2
Shared: Space · RPG · Simulation

FTL: Faster Than Light
Shared: Space · Strategy · Indie

SPORE™
Shared: Space · Simulation · Sandbox

Space Engineers
Shared: Space · Simulation · Sandbox

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Sandbox

Deliver Us The Moon
Shared: Space · Action · Indie

Fallout 4
Shared: RPG · Singleplayer · Adventure