Space Adventure Planet Y was a stage play in Club Penguin. It first premiered in October 2008, and again in November 2010 and September 2012, it returned after a year of not being shown at the stage in May 2014 and returned nearly a year later in March 2015. It was the sequel to the original play, Space Adventure. The script Space Adventure Planet Y and its prequel were featured in The Official Stage Playbook.