Games like Lone Voyage
Games like Lone Voyage include No Man's Sky, Terraria, Empyrion - Galactic Survival, Starbound, and The Escapists. We matched them by the tags players give Lone Voyage on Steam (Exploration, Space, Survival, Crafting, and Simulation): closest matches first, and among equally close ones the better-known games.

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

Terraria
Shared: Survival · Crafting · Exploration

Empyrion - Galactic Survival
Shared: Space · Simulation · Survival

Starbound
Shared: Survival · Space · Crafting

The Escapists
Shared: Crafting · Strategy · Simulation

EVE Online
Shared: Exploration · Space · Space Sim

Elite Dangerous
Shared: Space · Exploration · Space Sim

Spaceflight Simulator
Shared: Space · Exploration · Simulation

The Forest
Shared: Survival · Crafting · Exploration

The Long Dark
Shared: Survival · Exploration · Crafting

ICARUS
Shared: Survival · Exploration · Crafting

Don't Starve
Shared: Survival · Crafting · Exploration

Cosmoteer: Starship Architect & Commander
Shared: Space · Exploration · 2D

Once Human
Shared: Survival · Exploration · Crafting

Space Engineers
Shared: Space · Survival · Simulation

X4: Foundations
Shared: Space · Exploration · Simulation

Core Keeper
Shared: Exploration · Survival · Crafting

Kerbal Space Program
Shared: Space · Simulation · Space Sim

Don't Starve Together
Shared: Survival · Crafting · Simulation

ASTRONEER
Shared: Space · Exploration · Survival

Oxygen Not Included
Shared: Survival · Simulation · Space

Dune: Awakening
Shared: Exploration · Survival · PvE

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

Forager
Shared: Survival · Crafting · 2D