Games like VOYAGER
Games like VOYAGER include Universe Sandbox, Kerbal Space Program, Exo One, Elite Dangerous, and EVE Online. We matched them by the tags players give VOYAGER on Steam (Space Sim, Simulation, Space, Minimalist, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Universe Sandbox
Shared: Simulation · Space Sim · Space

Kerbal Space Program
Shared: Simulation · Space · Space Sim

Exo One
Shared: Space · Atmospheric · Space Sim

Elite Dangerous
Shared: Space Sim · Space · Simulation

EVE Online
Shared: Space Sim · Space · Simulation

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

No Man's Sky
Shared: Space · Exploration · Adventure

Kerbal Space Program 2
Shared: Space · Simulation · Exploration

Journey
Shared: Atmospheric · Adventure · Relaxing

Spaceflight Simulator
Shared: Space Sim · Space · Simulation

Outer Wilds
Shared: Space · Exploration · Atmospheric

Deliver Us The Moon
Shared: Space · Adventure · Atmospheric

X4: Foundations
Shared: Simulation · Space · Space Sim

Star Trucker
Shared: Space Sim · Space · Simulation

ABZU
Shared: Atmospheric · Relaxing · Exploration

Hardspace: Shipbreaker
Shared: Space · Simulation · Space Sim

Mountain
Shared: Simulation · Relaxing · Space

Solar 2
Shared: Space · Simulation · Relaxing

DAVE THE DIVER
Shared: Relaxing · Adventure · Simulation

Rebel Galaxy
Shared: Space · Space Sim · Simulation

X Rebirth
Shared: Simulation · Space · Space Sim

Space Engineers
Shared: Space · Simulation · Physics

Astrox Imperium
Shared: Simulation · Space · Space Sim

Universe Sandbox
Shared: Simulation · Space · Physics