Many people prefer to buy downloadable pc games from the internet because they are readily available online.  One need not go to a local dealer of such games to look for a computer game as one could easily search it on the web.  One just needs to type the correct keyword on a search engine.There are many genres of PC games that are available online.  They come either as trial versions or full versions of the game that you are looking for.  Most full game versions come at a fee but they can be easily downloaded when you purchase them.  And when you indeed decide to buy one online, it is best to buy from a reputable game developer.