Games like Search
Games like Search include Kerbal Space Program, Kerbal Space Program 2, Universe Sandbox, Spaceflight Simulator, and Elite Dangerous. We matched them by the tags players give Search on Steam (Simulation, Space, Space Sim, Exploration, and Science): closest matches first, and among equally close ones the better-known games.

Kerbal Space Program
Shared: Simulation · Space · Space Sim

Kerbal Space Program 2
Shared: Space · Exploration · Simulation

Universe Sandbox
Shared: Simulation · Space · Space Sim

Spaceflight Simulator
Shared: Space · Space Sim · Simulation

Elite Dangerous
Shared: Space · Space Sim · Simulation

X4: Foundations
Shared: Simulation · Space · Space Sim

Solar Expanse - Space Exploration Manager
Shared: Simulation · Space · Science

Empyrion - Galactic Survival
Shared: Simulation · Space · Exploration

Dyson Sphere Program
Shared: Space · Simulation · Resource Management

Space Engineers
Shared: Space · Simulation · Physics

V: Rings of Saturn
Shared: Space · Exploration · Physics

No Man's Sky
Shared: Space · Exploration · Procedural Generation

Hardspace: Shipbreaker
Shared: Space · Simulation · Physics

Universe Sandbox
Shared: Simulation · Space · Science

EVE Online
Shared: Space Sim · Exploration · Space

Stellaris
Shared: Space · Simulation · Exploration

Oxygen Not Included
Shared: Resource Management · Simulation · Management

Reentry - A Space Flight Simulator
Shared: Simulation · Space · Space Sim

鬼谷八荒 Tale of Immortal
Shared: Simulation · Management · Exploration

Avorion
Shared: Space Sim · Exploration · Space

Mars Horizon
Shared: Space · Management · Space Sim

SPORE™
Shared: Simulation · Space · Exploration

FTL: Faster Than Light
Shared: Space · Simulation · Indie

X Rebirth
Shared: Simulation · Space · Space Sim