There is an awesome app called steam . First to download it - file 1 . Then you go to file 2 . Click on games . Under that click free to play . Click on any game . Press download . You must have steam's update complete first . Then open steam . Click on library . Click on the game . Click play . Then press close . A percent bar will come . Let it be 100 % complete . ( Till then , play some generally ) Then click on play and you have it . You can also click on demos for more games .