Games like A Space Odyssey
Games like A Space Odyssey include Cell to Singularity - Evolution Never Ends, Mountain, Banana, Kerbal Space Program, and Universe Sandbox. We matched them by the tags players give A Space Odyssey on Steam (Casual, Simulation, Platformer, Space, and Fantasy): closest matches first, and among equally close ones the better-known games.

Cell to Singularity - Evolution Never Ends
Shared: Simulation · Casual · Space

Mountain
Shared: Simulation · Casual · Singleplayer

Banana
Shared: Casual · Singleplayer · Simulation

Kerbal Space Program
Shared: Simulation · Space · Singleplayer

Universe Sandbox
Shared: Simulation · Space · Casual

House Flipper
Shared: Simulation · Singleplayer · Casual

The Sims™ 4
Shared: Simulation · Singleplayer · Casual

Tavern Keeper 🍻
Shared: Simulation · Fantasy · Casual

Hardspace: Shipbreaker
Shared: Simulation · Space · Singleplayer

Astrox Imperium
Shared: Simulation · Space · Early Access

Plague Inc: Evolved
Shared: Simulation · Casual · Singleplayer

Game Dev Tycoon
Shared: Simulation · Casual · Singleplayer

Slime Rancher
Shared: Singleplayer · Simulation · Casual

Chained Together
Shared: Casual · Platformer · Simulation

SpaceEngine
Shared: Casual · Space · Simulation

Gas Station Simulator
Shared: Simulation · Casual · Singleplayer

Librarian: Tidy Up the Arcane Library!
Shared: Casual · Singleplayer · Simulation

Defy Gravity Extended
Shared: Platformer · Space · Casual

Train Simulator Classic
Shared: Simulation · Casual · Singleplayer

Master Of Pottery
Shared: Casual · Simulation · Singleplayer

Garry's Mod
Shared: Casual · Simulation · Singleplayer

DAVE THE DIVER
Shared: Casual · Singleplayer · Simulation

Universe Sandbox
Shared: Simulation · Space · Casual

Disney Dreamlight Valley
Shared: Simulation · Casual · Fantasy