> why the Rollercoaster Tycoon creator would write 99% of the game in it Not sure how true it is, but I heard that keeping track of a lot of objects required p

> why the Rollercoaster Tycoon creator would write 99% of the game in it Not sure how true it is, but I heard that keeping track of a lot of objects required plenty of optimization, and apparently such levels of detail may have not been in games before. RCT was the second Tycoon game by Chris Sawyer, after Transport Tycoon from 1994—which is also in assembly and which keeps track of buses and trucks each with its own parameters, trains with each car, signals on the roads; of every passenger and every batch of goods: where it's from, how long it's on the way, etc. (At least if OpenTTD recreates the mechanics faithfully.) You can also pop up several windows with views to different parts of the map or following various vehicles.