San Francisco-based social casino operator Ruby Seven Studios has entered into a partnership with Delaware North Gaming, the casino subsidiary of hospitality and entertainment business Delware North, to develop a new line of free-to-play casino games.

Designed to complement Delaware North’s existing land-based gaming business, the pair will collaborate on the design and launch of mobile-focused games.

These will be similar to Ruby Seven’s TropWorld Casino app, designed for rival casino operator Tropicana Entertainment, which launched in July.

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