Dark Summoner is popular game apps for smartphones which Japan's Ateam develops. It is JP-style card battle game, but the art are slightly different from JP-style. Because its motif is the dark fantasy. The art were received favorably by users of North American and European. Now, Dark Summoner has users more than 6M all over the world.
On the other hand, how about the East Asia? Ateam released a Korean version of Dark Summoner "다크서머너" at the beginning of this month. Then two weeks later, It was ranked No. 1 in free apps ranking of Korean App Store!
In addition, the Android ver. is brisk, too. It records 100,000-500,000 downloading, and users review is 4.5.
It is unusual for Japanese game apps to be accepted immediately by Korean users. However, a similar example includes Cygames's Rage of Bahamut. Possibly the Dark Fantasy may be advantageous in global expansion.