Games like Orbitmine
Games like Orbitmine include Stellaris, Nodebuster, A Game About Feeding A Black Hole, Cosmoteer: Starship Architect & Commander, and Shelldiver. We matched them by the tags players give Orbitmine on Steam (Sci-fi, Space, Arcade, Casual, and Strategy): closest matches first, and among equally close ones the better-known games.
Stellaris
Shared: Space · Sci-fi · Strategy
Nodebuster
Shared: Casual · Strategy · Arcade
A Game About Feeding A Black Hole
Shared: Casual · Strategy · Incremental
Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Space · Singleplayer
Shelldiver
Shared: Casual · Arcade · Incremental
FTL: Faster Than Light
Shared: Space · Sci-fi · Strategy
Keep on Mining!
Shared: Casual · Idler · Incremental
Unnamed Space Idle
Shared: Casual · Space · Idler
Incredicer
Shared: Casual · Strategy · Arcade
Space Rock Breaker
Shared: Arcade · Casual · Space
No Man's Sky
Shared: Space · Sci-fi · Exploration
Cookie Clicker
Shared: Casual · Idler · Incremental
Dyson Sphere Program
Shared: Space · Sci-fi · Automation
Deep Space Cache
Shared: Casual · Strategy · Space
Bills Must Be Paid
Shared: Strategy · Incremental · Casual
Starfield
Shared: Space · Sci-fi · Singleplayer
To The Core
Shared: Casual · Arcade · Incremental
SPACEPLAN
Shared: Space · Casual · Sci-fi
X4: Foundations
Shared: Space · Sci-fi · Exploration
Hardspace: Shipbreaker
Shared: Sci-fi · Space · Singleplayer
Elite Dangerous
Shared: Space · Sci-fi · Exploration
Endless Sky
Shared: Space · Sci-fi · Singleplayer
Click and Conquer
Shared: Casual · Arcade · Idler
STAR WARS™ Empire at War - Gold Pack
Shared: Space · Sci-fi · Strategy