Seoul-listed DoubleU Games has refuted claims that it offers illegal gambling products via its DoubleDown Interactive social casino subsidiary.

The company is one of several social casino operators facing a lawsuit in Washington state following a decision by the Ninth Circuit of the US Court of Appeals in March, which found that certain social casino games constitute a form of illegal gambling.

The ruling has seen suits filed against DoubleDown and fellow social casino operators Playtika, High 5 Games and Huuuge Games.

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