Games like SMBH : Super Massive Black Hole
Games like SMBH : Super Massive Black Hole include SpaceEngine, Starfield, No Man's Sky, Kerbal Space Program, and Cosmoteer: Starship Architect & Commander. We matched them by the tags players give SMBH : Super Massive Black Hole on Steam (Sci-fi, Casual, 3D, Singleplayer, and Space): closest matches first, and among equally close ones the better-known games.

SpaceEngine
Shared: Sci-fi · Casual · Space

Starfield
Shared: Sci-fi · Space · Singleplayer

No Man's Sky
Shared: Sci-fi · Space · Exploration

Kerbal Space Program
Shared: Space · Science · Singleplayer

Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Singleplayer · Space

Outer Wilds
Shared: Space · Exploration · Singleplayer

Elite Dangerous
Shared: Sci-fi · Space · Exploration

FTL: Faster Than Light
Shared: Sci-fi · Space · Singleplayer

Stellaris
Shared: Sci-fi · Space · Exploration

V: Rings of Saturn
Shared: Sci-fi · Space · Singleplayer

STAR WARS Jedi: Survivor™
Shared: Singleplayer · Sci-fi · Space

X4: Foundations
Shared: Space · Sci-fi · Exploration

ARMORED CORE™ VI FIRES OF RUBICON™
Shared: Mechs · Sci-fi · 3D

Voyager-19
Shared: Sci-fi · Space · Singleplayer

Kerbal Space Program 2
Shared: Space · Exploration · Science

Mirror 2: Project X
Shared: 3D · Singleplayer · Casual

Prey
Shared: Sci-fi · Singleplayer · Space

Avorion
Shared: Space · Exploration · 3D

Universe Sandbox
Shared: Space · Casual · Singleplayer

Deliver Us The Moon
Shared: Sci-fi · Space · Singleplayer

Yellow Taxi Goes Vroom
Shared: Singleplayer · 3D · Indie

Solar Expanse - Space Exploration Manager
Shared: Space · Singleplayer · 3D

SPORE™
Shared: Casual · Space · Exploration

Dyson Sphere Program
Shared: Space · Sci-fi · Singleplayer