Map radar can get the streaming of video game live players and output localisation of enemies and friend. Give you alert on dangerous zones. The problem of past designed and developed games is that they are closed. They should be open for others to build things and plug them into. Of course, with games like SimCity, we had seen the burgeoning of games open platform that allows players to become creators and publish assets into the game. That user-generated content applied to gaming. But games developers should go further by making their games open for skilled players and other developers to build and embed systems into the game. By doing so they make the game richer and live longer. A game should be an open platform for playing and building.