consumer psychology

"Battle games are usually addictive – once you start playing them, it becomes increasingly difficult to stop. Right after you launch the game for the first time, you want to keep playing it more and more. The game play is simple and addictive and the game greets you with an interesting introduction video that sucks …"

"Finnish developer Supercell launched its first two mobile games – Hay Day and Clash of Clans – in the summer of 2012. In the first three months of 2013, those two games alone made the company $179m (£116.7m) in revenues..."