European developer Zattikka ends a long period of silence today with an announcement that it’s now trading shares on the Alternative Investment Market (a sub-market of the London Stock Exchange) and acquired a studio that specializes in Facebook games.

The company’s placing price per share was 100p ($1.50) and gave a market capitalization of £22 million ($35 million). Zattikka notes that the AIM placing finalized its acquisitions of Hattrick Holdings, Sneaky Games, Inc. and Concept Art House, Inc. These studios will help provide Zattikka an influx of titles that can be sold via its own websites and other digital platforms to customers in Europe, China and the U.S.

Zattikka’s web presence is mostly felt through game portals like BadHed and Gimme5games.com. The company has eschewed social networks until now, publishing only two titles on Facebook: Wheelers and Dealers and Games for the Planet. Both are now gone from Facebook, but Wheelers and Dealers had peaks of 289,000 MAU and 24,000 DAU while Games for the Planet hit highs of 50,000 MAU and 4,200 DAU.

The acquisition of of Sneaky Games marks a likely return to sites like Facebook and Google+. The studio developed the Facebook titles Syfy Monster Island, Vampire Legacy and Fantasy Kingdoms and is listed as specializing in social network games on Zattikka’s website.

Zattikka also revealed it’s raised £12.6 million ($20 million) thanks to placing with investors on AIM. That’s a bit less than the $100 million the company was planning to raise when newly-hired head of North American operations Joel Breton spoke to us in November 2010, just after it raised $5.5 million in funding in July 2010.