Games like Spaceforce Rogue Universe HD
Games like Spaceforce Rogue Universe HD include Elite Dangerous, Kerbal Space Program, EVE Online, Starpoint Gemini 2, and Starpoint Gemini Warlords. We matched them by the tags players give Spaceforce Rogue Universe HD on Steam (RPG, Simulation, Space, and Space Sim): closest matches first, and among equally close ones the better-known games.

Elite Dangerous
Shared: Space · Space Sim · Simulation

Kerbal Space Program
Shared: Simulation · Space · Space Sim

EVE Online
Shared: Space Sim · Space · Simulation

Starpoint Gemini 2
Shared: Simulation · RPG · Space

Starpoint Gemini Warlords
Shared: RPG · Space · Simulation

X4: Foundations
Shared: Simulation · Space · Space Sim

Universe Sandbox
Shared: Simulation · Space · Space Sim

Between the Stars
Shared: RPG · Space · Simulation

Rebel Galaxy
Shared: Space · RPG · Space Sim

Starfield
Shared: Space · RPG · Space Sim

PULSAR: Lost Colony
Shared: Space Sim · Simulation · Space

Empyrion - Galactic Survival
Shared: Simulation · Space · Space Sim

SpaceBourne 2
Shared: RPG · Space Sim · Space

Starpoint Gemini 3
Shared: Simulation · RPG · Space

Endless Sky
Shared: Space · Simulation · RPG

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

SpaceBourne
Shared: RPG · Simulation · Space

Ostranauts
Shared: Simulation · Space Sim · Space

Spaceflight Simulator
Shared: Space · Simulation · Space Sim

Hardspace: Shipbreaker
Shared: Space · Simulation · Space Sim

Space Engineers
Shared: Space · Simulation · Space Sim

X Rebirth
Shared: Simulation · Space · Space Sim

Astrox Imperium
Shared: Simulation · Space · Space Sim

Dyson Sphere Program
Shared: Space · Simulation · Space Sim