Games like Create Your Own Universe
Games like Create Your Own Universe include Avorion, EVE Online, SpaceBourne 2, 《蜀山:初章》买断版, and The Elder Scrolls Online - Standard Edition. We matched them by the tags players give Create Your Own Universe on Steam (Choose Your Own Adventure, Exploration, Third-Person Shooter, Flight, and PvE): closest matches first, and among equally close ones the better-known games.

Avorion
Shared: Exploration · Choose Your Own Adventure · Flight

EVE Online
Shared: Exploration · Space Sim · PvE

SpaceBourne 2
Shared: Flight · RPG · Space Sim

《蜀山:初章》买断版
Shared: Choose Your Own Adventure · RPG · Exploration

The Elder Scrolls Online - Standard Edition
Shared: RPG · Exploration · PvP

Warhammer 40,000: Space Marine 2
Shared: Third-Person Shooter · PvE · Third Person

Dune: Awakening
Shared: Exploration · PvE · Base Building

Warframe
Shared: Third-Person Shooter · RPG · PvE

ARC Raiders
Shared: Third-Person Shooter · PvE · PvP

Elite Dangerous
Shared: Exploration · Space Sim · Simulation

Marvel Rivals
Shared: Third-Person Shooter · PvP · RPG

Crimson Desert Enhanced
Shared: Exploration · RPG · Choose Your Own Adventure

The Expanse: A Telltale Series
Shared: Choose Your Own Adventure · Exploration · RPG

Enshrouded
Shared: Exploration · Base Building · RPG

X4: Foundations
Shared: Exploration · Space Sim · Simulation

Pax Dei
Shared: Exploration · RPG · PvP

Valheim
Shared: Exploration · Base Building · RPG

鬼谷八荒 Tale of Immortal
Shared: Choose Your Own Adventure · RPG · Exploration

Galaxy on Fire 2™ Full HD
Shared: Exploration · Third-Person Shooter · Space Sim

PUBG: BATTLEGROUNDS
Shared: Third-Person Shooter · PvP · Adventure

Guild Wars® Reforged
Shared: Choose Your Own Adventure · Exploration · RPG

Last Oasis
Shared: RPG · Massively Multiplayer · PvP

Starminer
Shared: Exploration · Space Sim · RPG

Stormworks: Build and Rescue
Shared: Flight · Exploration · Base Building