There are tons and tones of clones of other games, all the farms on facebook and mobile phones is the best example.
Every decent social games developer seem to have a farm game, some I've seen even have 2.
On the other hand clones of Tetris are being shut down because they use the same mechanics in their games.
Hasbro sent a cease and desist letter to the creator of a copy of the game Risk using the Google Maps API resulting in the game shutting down (couldn't find much information about it on Google).
And now EA sued Zynga for copying, and maybe even mocking The Sims Social.
While the last case is pretty obvious and I kind of hope EA wins, the other 2 examples aren't as obvious.
Sure they use the same game with the same rules, but should you be able to copyright game mechanics? Mino added new features to the game, and even though it looks and feels like Tetris, I wouldn't say it is Tetris. And Google Maps Risk takes the original Risk to a whole new level.
Should chessboard makers be able to sue other chessboard makers because they use black and white teams, on a black and white board, with the same rules of gameplay?
Where is the line drawn? Is every clone out there risking being sued and shut down?
Edited by hustlerinc, 03 August 2012 - 08:27 PM.