VOCADOL is a idol training and mystery adventure game featuring the following VOCALOIDs:
:bulletblue: Lily
:bulletblue: Merli
:bulletblue: Aoki Lapis
:bulletblue: kanon
:bulletblue: anon
:bulletblue: CUL
:bulletblue: kokone
:bulletblue: Mizki (VY1)
The narrative of the game will be written by Kuroda Kenji, author of works such as the novel Ao Oni (Blue Demon), which has also been adapted into a movie. The design used for VY1 and the game's narrative are unofficial canons.
The game will be free and will run on iOS7/Android4. It is set to release sometime this year (2015).
VOCADOL website: http://vocadol.com/