Denver-based iOS developer Riptide Games announced it will be merging with Ontario's Projkt Nine, cementing a collaboration that has produced titles such as My Pet Zombie. The newly joined, 11-person company will operate under the Riptide Games moniker and be focused "on the development of highly entertaining freemium next-gen mobile games," according to the announcement. "I am very excited about this merger." said Projkt Nine founder Mike Montgomery, who will now serve as CCO for Riptide, in a statement. "With the success of the titles already released, and the current titles in the works, we have a very big year ahead of us." "Our teams are very complementary to each other" said Riptide Games founder and president Brian Robbins, in a statement. "Our combined forces bring together extremely talented programmers with amazing graphic and game designers, so we're perfectly positioned to create the best of tomorrow's mobile experiences." Riptide's My Pet Zombie, which is already available on the Canadian App Store, will launch worldwide later this month, the company said. Riptide's previous work also includes an EA-published game based on the Bop It! toy license and a series of iLook apps based around dressing up photographs, which have sold a combined 2 million units. The team is currently working on a mysterious iOS game project called Sumo, due for release later in 2011.