Browser-based games such as an Online Space Game that I would like to talk about are some of the most popular online games in the world. The game I would like to talk about is Dark Orbit. Not so long ago, the game reached 50 million registered users making it one of the most popular browser-based games in history. Users compete with one another for the control of space. What is even more, they can win up to £10,000. Every player can hit the jackpot and enjoy playing the game at the same time. The game is free to play. there is no registration fee, which means that everybody can sign up for free and enjoy playing completely for free.