There hasn't been a content update since Ghostbusters and they shifted to the console version, but will they release anything else for the PC version like more rides or is development done? There is currently no way to make working rides for Planet Coaster but you can for RCT2, RCT3 and Parkitect. There are quite a few flat rides missing like a magic carpet/rainbow ride, gravitron, double ferris wheel, sky swing, slingshot, those are all in RCT3.