Wikipedia
Mobage
is a portal and social network for games, owned by DeNA. The service has 30 million users, who largely play on feature phones.
On February 14, 2011, DeNA announced renaming Mobage Town service name to Mobage, which also merged the Plus+ network operated by ngmoco under the new branding.
On December 19, 2014, ngmoco, LLC announced the renaming of Mobage to DeNA. However, the Japanese site still operates under the mobage name.