There is a case going through the Supreme Court over in the USA at the moment which could drastically change how games are both made, and sold on the other side of the Atlantic. It is an issue which has caused Insomniac Games boss Ted Price to express his concerns over what would happen if the law is allowed to be passed.
Game Politics reports that a bill before the Oklahoma state senate proposes tax breaks for game developers, but only if their game is suitable the less world-weary gamer under the age of 17. If their game is rated M (Mature) or AO (Adults Only), there’s really no reason for developers to mount up and move to Oklahoma besides the [whatever people in Oklahoma grow, possess, or participate in].