Welcome to space simulator. You can place multiple planets in space and watch them orbit and interact. You can pause the simulation and add planets, or timelapse it. May get laggy at some point, if that happens, press d - all your logged track data will be deleted and the game will be much faster. press d to activate tracks again. space - start/pause simulation t - enable or disable tracks d - delete all tracks/start tracking again arrow keys - move camera i - zoom in o - zoom out a - advanced settings like timelapse and track accuracy
(all by me btw) planets may be shot out when colliding, but this is an unfixable bug and has to do with scratch's framerate/tickrate go to turbowarp for faster simulations