Games like Windows Separate Worlds: Chapter 1
Games like Windows Separate Worlds: Chapter 1 include Mirror 2: Project X, SPORE™, WorldBox - God Simulator, Sonic Frontiers, and Aniimo. We matched them by the tags players give Windows Separate Worlds: Chapter 1 on Steam (3D Platformer, Animation & Modeling, Interactive Fiction, Artificial Intelligence, and God Game): closest matches first, and among equally close ones the better-known games.

Mirror 2: Project X
Shared: 3D · Interactive Fiction · RPG

SPORE™
Shared: God Game · Open World · Simulation

WorldBox - God Simulator
Shared: God Game · Simulation · Artificial Intelligence

Sonic Frontiers
Shared: 3D Platformer · Open World · 3D

Aniimo
Shared: Artificial Intelligence · Open World · RPG

Everything
Shared: Simulation · RPG · Open World

Planet Coaster 2
Shared: Simulation · 3D · God Game

Another Crab's Treasure
Shared: 3D Platformer · RPG · Open World

Rooftops & Alleys: The Parkour Game
Shared: 3D Platformer · Simulation · 3D

Librarian: Tidy Up the Arcane Library!
Shared: Artificial Intelligence · Simulation · 3D

Mountain
Shared: Simulation · God Game · Indie

Hobo: Tough Life
Shared: RPG · Open World · Simulation

ScooterFlow
Shared: 3D Platformer · Simulation · 3D

Dragon's Dogma 2
Shared: RPG · Open World · Magic

Universe Sandbox
Shared: Simulation · God Game · Realistic

ATLYSS
Shared: RPG · 3D Platformer · 3D

Whispers from the Star
Shared: Interactive Fiction · Artificial Intelligence · 3D

SpaceBourne 2
Shared: RPG · 3D · Open World

Ultimate Epic Battle Simulator 2
Shared: Simulation · God Game · 3D

Bomb Rush Cyberfunk
Shared: 3D Platformer · 3D · Colorful

I Am Jesus Christ
Shared: Interactive Fiction · Simulation · God Game

World of Guns: Gun Disassembly
Shared: Animation & Modeling · 3D · Simulation

Vanity Fair: The Pursuit
Shared: RPG · Interactive Fiction · Simulation

CRISIS CORE –FINAL FANTASY VII– REUNION
Shared: RPG · 3D Platformer · 3D