EXCLUSIVE: Zynga has acquired Rising Tide Games, a free-to-play social-casino-game company started by former Zynga and Playtika executives, GamesBeat has learned. The startup is headed by Maytal Olsha, a former executive at Zynga who left last year. Zynga confirmed the acquisition after an inquiry from GamesBeat. The social casino game market will be about $3.5 billion worldwide […]...