As usual with Square Enix, we can expect that the storyline of Dragon Sky will be one of its strongest points. It seems that players will take control of a party of four characters – the main protagonist and three support characters. They will have to take part in "the battle unfolding in the world of clouds".
The gameplay will mostly consist of building a base, training additional units, and attacking the bases of your enemies. According to the teaser website, players will obtain these units by collecting different cards. The game will also feature multiplayer – gamers will be able to team up and participate in massive raids against various bosses.
The game is "coming soon" for both iOS and Android devices.
source: Dragon Sky (translated) via PocketGamer