eldavojohn writes "Ars analyzes some knockoffs and near-knockoffs in the gaming world that led to problems with the original developers. Jenova Chen, creator of Flower and flOw, discusses how he feels about the clones made of his games. Chen reveals his true feelings about the takedown of Aquatica (a flOw knockoff): 'What bothers me the most is that because of my own overreaction, I might have created a lot of inconvenience to the creator of Aquatica and interrupted his game-making. He is clearly talented, and certainly a fan of flOw. I hope he can continue creating video games, but with his own design.' The article also notes the apparent similarities between Zynga's Cafe World and Playfish's Restaurant City (the two most popular Facebook games). Is that cloning or theft? Should clones be welcomed or abhorred?"

As a follow-up to Epic Games' release of a free version of the Unreal Engine last month, the company has now posted over 160 video tutorials which demonstrate the various uses of the Unreal Development Kit. Roughly 20 hours of footage were created by technical education company 3D Buzz, with topics ranging from user interface to game physics to cinematics.