Developer GungHo Online Entertainment generates around $2.5 million every day with its mobile role-playing game Puzzle & Dragons. Earlier this week, designer Ramin Shokrizade wrote a blog for Gamasutra explaining some of the methods that helps the Japanese developer “coerce” players into spending big money.
Shokrizade went over several concepts like premium currencies, reward removal, and hard boosts. He claims that these techniques help the developer obscure information that the brain would normally use to decide against making a purchase.

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