You can find most of these sources through Google searches and many users have shared some of these sites through Yahoo Answers. Peek into three sources are 100% legitimate:
The first one is movie hater. com, where you can find a download tool for the Pokemon X&Y game and supported by 77k votes and only twenty negative votes. Simply download this tool to get the game that is designed for your PC. The next website is PokemonXYEmulator. com. Hopefully a stable version of the Pokemon will be released soon. Meanwhile this website has revealed instructions on how to play the game on your computer with additional screen shots to help you through the download process. The third website is the Geek Professional. com. The website does not however, have any details on what has to be done but lists some download links that will take you to other places to access the game.
A Facebook user has posted information about few credible sources whereby you can get the new generation of the Pokémon Emulator and ROM. You will need to be careful as some of these links take you to survey websites before you can download anything.
UTorrent has another set of links while the Geek Professional website lists an UTorrent link.