Games like Futuclass - Reaction Balancing

Games like Futuclass - Reaction Balancing include Kerbal Space Program, BONEWORKS, Universe Sandbox, Universe Sandbox, and while True: learn(). We matched them by the tags players give Futuclass - Reaction Balancing on Steam (Simulation, Puzzle, Indie, Education, and Physics): closest matches first, and among equally close ones the better-known games.