Chorus Worldwide released today the Japanese version of the Crowntakers smartphone RPG game for the iOS users. The game will be available soon for the Android users but the English version already available on both platforms.
This game is a paid title which is available for 480 Yen in Japan and it is a roguelike turn-based strategy RPG on a hexagonal battlefield. You can download the client for free and you can play with the first 2 early stages and after that you can decide if you want to buy it or not.
You can buy the Japanese version from here: https://itunes.apple.com/jp/app/id1151570798