Games like Falling Stars... and other celestial objects

Games like Falling Stars... and other celestial objects include Garry's Mod, Poly Bridge, People Playground, Besiege, and Totally Accurate Battle Simulator. We matched them by the tags players give Falling Stars... and other celestial objects on Steam (Simulation, Building, Casual, Tower Defense, and Sandbox): closest matches first, and among equally close ones the better-known games.