Together, this acquisition will create the world’s largest mobile social games platform company.

“This acquisition cements DeNA’s leadership position in the U.S. We’re building the largest mobile social gaming platform in the world and populating it with incredible games and services.”

ngmoco’s shareholders and employees will receive US$300 million in cash and securities. They are eligible for another $100 million, contingent upon hitting certain performance milestones.

“In ngmoco and its team we see a lot of the same talent and dynamic traction that we have in the Japanese market, making the merger a perfect fit for us,” said Tomoko Namba, founder and CEO, DeNA. “This acquisition cements DeNA’s leadership position in the U.S. We’re building the largest mobile social gaming platform in the world and populating it with incredible games and services.”

Headquartered in San Francisco, and with studios in New York and Portland, ngmoco was founded in 2008 by games industry veterans Neil Young, Bob Stevenson, Alan Yu and Joe Keene. ngmoco’s games are played more than 50 million minutes a day and have been downloaded more than 60 million times on Apple’s iOS devices, resulting in 20 top 10 applications. The company’s Plus+ social network has over 13.5 million registered users, with more than 50 million friend connections and has been installed more than 86 million times. In September, ngmoco announced its commitment to the Android platform with games and services arriving in the fourth quarter.

“We are delighted to be joining forces with DeNA, a company that we have admired and aspired to,” said Neil Young, founder and CEO, ngmoco. “The opportunity to be a part of creating the number one social mobile game platform company and to benefit from the unique learning and knowledge that DeNA possesses is an amazing way to accelerate our vision for gaming.”