Games like Star Nomad 2
Games like Star Nomad 2 include The Scroll of Taiwu : Beyond The Dome, Mount & Blade II: Bannerlord, Kerbal Space Program, Starpoint Gemini Warlords, and X4: Foundations. We matched them by the tags players give Star Nomad 2 on Steam (RPG, Simulation, Space, Strategy, and Indie): closest matches first, and among equally close ones the better-known games.

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

Mount & Blade II: Bannerlord
Shared: RPG · Strategy · Open World

Kerbal Space Program
Shared: Simulation · Space · Sandbox

Starpoint Gemini Warlords
Shared: RPG · Space · Simulation

X4: Foundations
Shared: Simulation · Space · Open World

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

Elite Dangerous
Shared: Space · Simulation · Open World

SPORE™
Shared: Simulation · Open World · Space

Between the Stars
Shared: RPG · Space · Simulation

Endless Sky
Shared: Space · Simulation · Open World

Stellaris
Shared: Space · Strategy · Simulation

Kenshi
Shared: RPG · Open World · Sandbox

Rebel Galaxy
Shared: Space · RPG · Open World

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

Dyson Sphere Program
Shared: Space · Simulation · Open World

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

觅长生
Shared: RPG · Strategy · Open World

Amazing Cultivation Simulator
Shared: Simulation · RPG · Strategy

Space Engineers
Shared: Space · Simulation · Sandbox

Sands of Salzaar
Shared: RPG · Strategy · Open World

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

Stardew Valley
Shared: RPG · Simulation · Sandbox

Starpoint Gemini 2
Shared: Simulation · RPG · Space

Mount & Blade: Warband
Shared: RPG · Strategy · Open World