Sam Heughan shared a joke with fans on Twitter about appearing topless in Outlander after they tweeted out pictures of a new game based on the hit TV show.The puzzle game, which is being created by Spanish developer Genera Games under licence by Sony, follows the story of the books and TV show and is already proving a hit with those fans lucky enough to have downloaded the pre-release version before it was closed to new players.Describing the game on their website, Genera wrote: "Travel back in