Games like Wayward Terran Frontier: Zero Falls
Games like Wayward Terran Frontier: Zero Falls include Elite Dangerous, Kerbal Space Program, EVE Online, No Man's Sky, and Endless Sky. We matched them by the tags players give Wayward Terran Frontier: Zero Falls on Steam (Open World, Space Sim, Sandbox, RPG, and Simulation): closest matches first, and among equally close ones the better-known games.

Elite Dangerous
Shared: Space Sim · Open World · Space

Kerbal Space Program
Shared: Sandbox · Simulation · Space Sim

EVE Online
Shared: Space Sim · Open World · Simulation

No Man's Sky
Shared: Open World · Space · Sandbox

Endless Sky
Shared: Open World · Space · Simulation

X4: Foundations
Shared: Open World · Space Sim · Simulation

Spaceflight Simulator
Shared: Space Sim · Sandbox · Simulation

Rebel Galaxy
Shared: Open World · RPG · Space

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Sandbox · Open World

Starfield
Shared: Open World · RPG · Space

Space Engineers
Shared: Sandbox · Open World · Simulation

Empyrion - Galactic Survival
Shared: Simulation · Open World · Space

Kerbal Space Program 2
Shared: Sandbox · Space · Open World

Universe Sandbox
Shared: Sandbox · Space Sim · Simulation

Terraria
Shared: Sandbox · 2D · Open World

Astrox Imperium
Shared: Space Sim · Simulation · Open World

SPORE™
Shared: Open World · Sandbox · Simulation

SpaceEngine
Shared: Open World · Sandbox · Space Sim

Mount & Blade II: Bannerlord
Shared: Open World · RPG · Sandbox

Dyson Sphere Program
Shared: Open World · Space · Simulation

Avorion
Shared: Sandbox · Space Sim · Open World

Starpoint Gemini Warlords
Shared: Open World · RPG · Space

Kenshi
Shared: Open World · Sandbox · RPG

Starbase
Shared: Open World · Space Sim · Sandbox