Earlier this month, PerBlue, a Madison, WI-based developer of games that can be downloaded and played on mobile devices, said that it had sold the rights to one of its games, DragonSoul, for an undisclosed sum.

The buyer, San Francisco-based GREE International Entertainment (GIE), is part of GREE, a Japan-based company listed on the Tokyo Stock Exchange.

According to a press release GIE put out on Oct. 6 announcing the deal, the only PerBlue asset that changed hands as part of the transaction was DragonSoul. “PerBlue’s current team will continue to create brand new games and support previously developed games that are not part of this acquisition,” GIE said in the release. Read the full story here.