Games like Build In Space
Games like Build In Space include Avorion, Satisfactory, Mon Bazou, ASTRONEER, and Kerbal Space Program. We matched them by the tags players give Build In Space on Steam (Choose Your Own Adventure, Exploration, Immersive Sim, City Builder, and Sandbox): closest matches first, and among equally close ones the better-known games.

Avorion
Shared: Exploration · Sandbox · Choose Your Own Adventure

Satisfactory
Shared: Crafting · Building · Exploration

Mon Bazou
Shared: Sandbox · Exploration · Choose Your Own Adventure

ASTRONEER
Shared: Exploration · Space · Sandbox

Kerbal Space Program
Shared: Sandbox · Space · Building

Out of Ore
Shared: Exploration · Sandbox · Choose Your Own Adventure

Dyson Sphere Program
Shared: Building · Space · Base Building

Space Engineers
Shared: Sandbox · Building · Space

Kerbal Space Program 2
Shared: Exploration · Sandbox · Building

Stormworks: Build and Rescue
Shared: Sandbox · Building · Immersive Sim

Terraria
Shared: Sandbox · Exploration · Crafting

No Man's Sky
Shared: Exploration · Space · Sandbox

Anno 117: Pax Romana
Shared: City Builder · Sandbox · Exploration

Techtonica
Shared: Exploration · Immersive Sim · Building

Empyrion - Galactic Survival
Shared: Exploration · Building · Simulation

Elite Dangerous
Shared: Exploration · Space · Simulation

The Planet Crafter
Shared: Building · Exploration · Base Building

Stardew Valley
Shared: Sandbox · Farming Sim · Crafting

SimCity™ 4 Deluxe Edition
Shared: Immersive Sim · City Builder · Sandbox

Core Keeper
Shared: Exploration · Sandbox · Crafting

Prison Architect
Shared: Sandbox · Building · City Builder

Medieval Dynasty
Shared: Building · Crafting · Immersive Sim

Spaceflight Simulator
Shared: Sandbox · Exploration · Space

Cities: Skylines
Shared: City Builder · Building · Sandbox