Games like SpaceBourne 2
Games like SpaceBourne 2 include Dyson Sphere Program, Starfield, Avorion, Elite Dangerous, and X4: Foundations. We matched them by the tags players give SpaceBourne 2 on Steam (RPG, Space Sim, Flight, Base Building, and 3D): closest matches first, and among equally close ones the better-known games.
Dyson Sphere Program
Shared: Base Building · Open World · Space
Starfield
Shared: RPG · Open World · Space
Avorion
Shared: Space Sim · Flight · Open World
Elite Dangerous
Shared: Space Sim · Open World · Space
X4: Foundations
Shared: Space Sim · Open World · Space
Mount & Blade II: Bannerlord
Shared: RPG · Open World · Strategy
Starpoint Gemini Warlords
Shared: RPG · Open World · Space Sim
Kenshi
Shared: RPG · Open World · Base Building
Schedule I
Shared: Open World · First-Person · Base Building
Once Human
Shared: Open World · Base Building · RPG
Mount & Blade: Warband
Shared: RPG · Open World · Strategy
Tainted Grail: The Fall of Avalon
Shared: RPG · Open World · First-Person
Kerbal Space Program
Shared: Space Sim · Space · Science
Grand Theft Auto V Legacy
Shared: Open World · First-Person · Third Person
The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Open World · Third Person
Starpoint Gemini 2
Shared: RPG · Space Sim · Open World
SpaceEngine
Shared: Open World · Space Sim · 3D
Rebel Galaxy
Shared: RPG · Open World · Space Sim
Between the Stars
Shared: RPG · Space Sim · Space
Middle-earth: Shadow of War
Shared: RPG · Open World · Third Person
Kingdom Come: Deliverance II
Shared: RPG · Open World · First-Person
Hobo: Tough Life
Shared: RPG · Base Building · Open World
Enshrouded
Shared: Base Building · Open World · RPG
Space Engineers
Shared: Base Building · Open World · Space