Games like SPORE™ Galactic Adventures
Games like SPORE™ Galactic Adventures include SPORE™, No Man's Sky, Elite Dangerous, Mount & Blade II: Bannerlord, and Stellaris. We matched them by the tags players give SPORE™ Galactic Adventures on Steam (Simulation, Action, Space, Adventure, and Exploration): closest matches first, and among equally close ones the better-known games.

SPORE™
Shared: Simulation · Open World · Space

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

Elite Dangerous
Shared: Space · Simulation · Exploration

Mount & Blade II: Bannerlord
Shared: Open World · Action · Strategy

Stellaris
Shared: Space · Simulation · Exploration

Starfield
Shared: Space · Open World · Exploration

Fallout 4
Shared: Open World · Exploration · Adventure

STAR WARS Jedi: Survivor™
Shared: Action · Adventure · Open World

EVE Online
Shared: Exploration · Adventure · Simulation

Grand Theft Auto V Legacy
Shared: Action · Open World · Adventure

X4: Foundations
Shared: Simulation · Space · Open World

Once Human
Shared: Action · Open World · Exploration

Slime Rancher
Shared: Adventure · Exploration · Open World

Just Cause™ 3
Shared: Action · Open World · Adventure

Mount & Blade: Warband
Shared: Open World · Action · Sandbox

X Rebirth
Shared: Simulation · Space · Action

Kerbal Space Program
Shared: Simulation · Space · Sandbox

ASTRONEER
Shared: Space · Open World · Exploration

Rebel Galaxy
Shared: Space · Open World · Adventure

Endless Sky
Shared: Space · Simulation · Open World

Just Cause 2
Shared: Action · Open World · Adventure

Space Rangers HD: A War Apart
Shared: Space · Simulation · Adventure

Bully: Scholarship Edition
Shared: Action · Adventure · Open World

SPORE™ Creepy & Cute Parts Pack
Shared: Simulation · Open World · Adventure