Social game make Zynga - often accused of ripping off other's ideas - has insisted everyone copies everyone.
EA has said it's "standing up for the industry" with its high-profile lawsuit against Zynga over alleged copyright infringement.
The Tetris Company has successfully argued that block puzzler Mino by Xio Interactive infringed its copyright.
Serial copycat developer Anton Sinelnikov has had his range of cloned App Store games culled by Apple.
It's not about being the first to market, it's about being the best when you do finally get there - that's Zynga boss Mark Pincus' response to accusations that the social gaming giant has been cloning other developers' games.
Casual gaming behemoth Zynga has been blasted by Tiny Tower creator NimbleBit following the launch of new Zynga title Dream Heights.
Dream Heights appears to be a virtual clone of Tiny Tower, which tasks players with adding floors of shops and apartments to an ever-expanding towerblock.
"Dear Zynga, (all 2,789 of you)," an open letter from NimbleBit begins.
Unputdownable iOS time-waster Tiny Wings is Apple's pick for the European App Store's iPhone game of the year.