Computer games are programs designed for the entertainment of people. Such games have got an extremely powerful development and resulted in a huge market over the last thirty years. Many people spend hours and days sitting at a computer playing different kinds of shooters, MMORPG, RPG, strategy, simulation and other genres of computer games. It’s fun and exciting, amusing and addictive. With the development of computer electronics and improved software and hardware, the games become more powerful and more realistic, more closer in visual quality to the real world. In every genre there are always your fans. Computer games are useful or harmful is up to you.