Bitsummit 2015 was held in Tokyo during July 11th to 12th. The event is set for indie game developers worldwide to show their works. This year, many outstanding game studios attended the event, included Machinarium developer Amanita Design, Gamkin and so on. Except for PC and console games, there are also some awesome mobile games. Here are 8 mobile games that you really need to notice in the future.