Compile Heart is about to release their second Neptunia title for smartphones and Neptunia Collection is a card battling game. Players can collect over 300 cards in the game. Illustrations change as cards evolve similar to Tales of Card Evolve.
Neptunia Collection has quests and completing these changes the landmass share in Gamindustri. Compile Heart also created event scenes where Neptune will talk to Vert, Blanc, Noire, Ram & Rom, and other characters from the series.
Neptunia Collection is slated for release this fall as a free download for Android and iOS devices. This game uses a microtransaction model where you can buy additional items.