The Planet Coaster release date is November 17, 2016, and the first Alpha version of the game was released on March 22, 2016. The second alpha build was released on May 24, 2016. Planet Coaster is consider the successor to RollerCoaster Tycoon 3, a game that Frontier developed in 2004.
The game was announced on January 29, 2015 by Frontier. It was originally called Coaster Park Tycoon, but due to recent releases of the Tycoon series that has been poorly-received, Frontier decided to abandon the Tycoon brand.
Frontier confirmed that Planet Coaster release date will be in November.