The features announced Tuesday include a network designed to provide players of Zynga's games with the same tools whether they are competing on Facebook's online social network, a mobile device or the company's own website.
The network is called "Zynga With Friends." That's a reference to one of Zynga's most popular games, the Scrabble-inspired "Words With Friends."
Zynga Inc. also previewed several new games, including a food-themed title called "ChefVille."
Investors evidently weren't impressed. Zynga's stock fell 30 cents close at $5.77. That's well below Zynga's initial public offering price of $10 six months ago.
Zynga has more than 290 million users.
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