Games like Voyager 2
Games like Voyager 2 include Kerbal Space Program, Universe Sandbox, Kerbal Space Program 2, Exo One, and Hardspace: Shipbreaker. We matched them by the tags players give Voyager 2 on Steam (Space, Puzzle, Physics, Flight, and Exploration): closest matches first, and among equally close ones the better-known games.

Kerbal Space Program
Shared: Space · Physics · Science

Universe Sandbox
Shared: Space · Physics · Science

Kerbal Space Program 2
Shared: Space · Physics · Exploration

Exo One
Shared: Space · Flight · Exploration

Hardspace: Shipbreaker
Shared: Space · Physics · Puzzle

Reentry - A Space Flight Simulator
Shared: Space · Flight · Space Sim

Universe Sandbox
Shared: Space · Physics · Science

SpaceEngine
Shared: Space · Flight · Science

Spaceflight Simulator
Shared: Space · Exploration · Space Sim

X4: Foundations
Shared: Space · Exploration · Space Sim

Outer Wilds
Shared: Space · Exploration · Puzzle

Zup! S
Shared: Puzzle · Physics · Casual

Superflight
Shared: Flight · Physics · Exploration

Juno: New Origins
Shared: Science · Flight · Space Sim

Solar Expanse - Space Exploration Manager
Shared: Space · Physics · Science

Space Engineers
Shared: Space · Physics · Simulation

Aviassembly
Shared: Physics · Flight · Exploration

V: Rings of Saturn
Shared: Space · Physics · Exploration

Elite Dangerous
Shared: Space · Exploration · Space Sim

Mars Horizon
Shared: Space · Education · Science

Empyrion - Galactic Survival
Shared: Space · Exploration · Simulation

Stellaris
Shared: Space · Exploration · Strategy

Avorion
Shared: Space · Exploration · Flight

Poly Bridge
Shared: Physics · Puzzle · Simulation