Cave Story Wiki was founded in 2009 by Meowpik.
The wiki had received multiple adoption requests from several users.
- TrailWalker submitted an adoption request on April 18, 2009. The request was put on hold indefinitely.
- On August 7, 2011, Phantom R, also known as "Alternate Phineas", submitted an adoption request and was the first user to successfully adopt the wiki.
- King Marth 64 requested adoption on June 11, 2012, and was granted the rights.
- Random-storykeeper submitted an adoption request on November 16, 2013. Phantom R returned a week later and promoted Random-storykeeper to admin and bureaucrat before the request could be processed.