The organizers of the big Casual Connect casual games conference, a longtime mainstay of the Seattle tech community, have made the conference’s move to San Francisco official … although they still aren’t explaining the reasons publicly.

The conference will be held July 30 through Aug. 1 next year at the Hilton San Francisco Union Square, according to the organization’s website. The event has traditionally been held at Seattle’s Benaroya Hall and surrounding venues. GeekWire reported news of the change in October, but this is the first official confirmation from Casual Connect organizers.

We’ve heard from companies involved in the conference that a lack of additional venue space was becoming an issue for Casual Connect as it seeks to grow its U.S. conference further, which contributed to the decision. We’ve sent another message seeking info from organizers, and we’ll update this post when we hear back.

Seattle is a hotbed for casual games, as the home to companies including PopCap, Big Fish Games and RealNetworks’ GameHouse division and a strong list of startups and smaller companies in the space.

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