Zynga has been accused of using a competitor’s source code to create a number of popular Facebook games including FarmVille, FrontierVille, CityVille and FishVille.
myFarm developer SocialApps has sued Zynga for alleged copyright infringement, violation of trade secrets and breach of written contract, among other charges, Patent Arcade reports.
SocialApps claims that in May 2009 the two companies entered into a Letter of Agreement for Zynga to acquire the intellectual rights and source code for myFarm, which released on Facebook in November 2008.
Zynga allegedly cajoled SocialApps into sharing its source code with promises of compensation and recognition, but went on to use it without fulfilling its end of the deal.
SocialApps is seeking Zynga's profits and gains from FarmVille, a permanent injunction, statutory and punitive damages plus attorney's fees.
Last month, Zynga began legal proceedings against Brazilian social games developer Vostu for "blatant copyright infringement".
Source: Patent Arcade