Gree lifts ad revenue 90% in Kingdom Age by optimizing its virtual currency exchange

Gree’s Kingdom Age is one of the top free-to-play fantasy role-playing games on mobile devices. But little did the Japanese mobile publishing company know that it had priced its virtual currency in the game too high.

With help from mobile monetization firm Tapjoy, it was able to change the currency pricing and boost ad revenue by 90 percent. That a remarkable boost for monetization for a single game, considering that Funzio (a company that Gree acquired) launched Kingdom Age more than three years ago.

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Dean Takahashi

Dean Takahashi is editorial director for GamesBeat. He has been a tech journalist since 1988, and he has covered games as a beat since 1996. He was lead writer for GamesBeat at VentureBeat from 2008 to April 2025. Prior to that, he wrote for the San Jose Mercury News, the Red Herring, the Wall Street Journal, the Los Angeles Times, and the Dallas Times-Herald. He is the author of two books, "Opening the Xbox" and "The Xbox 360 Uncloaked." He organizes the annual GamesBeat Next, GamesBeat Summit and GamesBeat Insider Series: Hollywood and Games conferences and is a frequent speaker at gaming and tech events. He lives in the San Francisco Bay Area.