Games like Journey to Alien Worlds
Games like Journey to Alien Worlds include Wobbly Life, Jet Island, Chained Together, Mountain, and Accounting+. We matched them by the tags players give Journey to Alien Worlds on Steam (Adventure, Indie, Casual, Simulation, and Space): closest matches first, and among equally close ones the better-known games.

Wobbly Life
Shared: Adventure · Simulation · Casual

Jet Island
Shared: Adventure · Indie · VR

Chained Together
Shared: Adventure · Casual · Simulation

Mountain
Shared: Indie · Simulation · Casual

Accounting+
Shared: Adventure · Indie · Casual

Home Behind
Shared: Adventure · Indie · Casual

Kerbal Space Program
Shared: Simulation · Space · Indie

That's not my Neighbor
Shared: Adventure · Casual · Indie

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Casual

ADR1FT
Shared: Adventure · Indie · Space

Florence
Shared: Indie · Adventure · Casual

Streamer Life Simulator
Shared: Simulation · Casual · Indie

How to Make an Atomic Bomb in Your Garden
Shared: Indie · Adventure · Simulation

Elite Dangerous
Shared: Space · Simulation · VR

Game Dev Tycoon
Shared: Indie · Simulation · Casual

Solar 2
Shared: Indie · Casual · Space

Rick and Morty: Virtual Rick-ality
Shared: Adventure · Indie · VR

Deliver Us The Moon
Shared: Adventure · Indie · Space

Achievement Clicker
Shared: Casual · Indie · Simulation

DAVE THE DIVER
Shared: Adventure · Casual · Simulation

人间 The Lost We Lost
Shared: Indie · Simulation · Adventure

Pikuniku
Shared: Adventure · Indie · Casual

[Chillas Art] The Convenience Store
Shared: Indie · Adventure · Simulation

Slime Rancher
Shared: Adventure · Simulation · Casual