RealNetworks (NASDAQ: RNWK) has announced the purchase of Slingo Inc.

One of the most popular social casino games, more than 4.5 million people play versions of Slingo's characteristic bingo-meets-slots game on Facebook.

It's also available on mobile, via Slingo.com and on physical slot machines.

The deal, which has already closed, is worth $15.6 million.

RealNetworks, which posted a net loss of 11.7 million on Q1 2013 sales of $56.8 million, ended the quarter with $261 million in cash and equivalents.

Stars align

"We are thrilled to have acquired Slingo, one of the most beloved products and brands in social casino gaming," said RealNetworks' CEO Rob Glaser.

"Our team is hard at work creating even more compelling new versions of Slingo for Facebook, iPhone, iPad and Android."

Slingo has been a successful, compelling product on every major games platform over the past 15 years," added Rich Roberts, Slingo's CEO.

"By joining forces with RealNetworks, we look forward to taking Slingo to the next level. We're thrilled to be joining RealNetworks' GameHouse division."

[source: RealNetworks]