Originally called '' Coaster Park Tycoon '' , the game was revealed on 29 January 2015 and was renamed during E3 2015 . '' Planet Coaster '' is Frontier 's second self-published franchise , following '' Elite : Dangerous '' . Frontier organized multiple alpha and beta testings before launching in November 2016 . The game was supported with free post-release downloadable content upon launch . The title received positive reviews upon release , with critics praising the game 's sandbox mode and creation tools . Criticisms were mainly directed to the game 's career mode . It was a commercial success , with more than 400,000 copies sold in its first month of release
E3 2015
E3 2015
Planet Coaster