Games like Spaceflight Simulator

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