Game

A game is a structured or semi-structured activity, usually undertaken for enjoyment and sometimes also used as an educational tool. (The term "game" is also used to describe simulation of various activities e.g., for the purposes of training, analysis or prediction, etc.) Games are generally distinct from work, which is usually carried out for remuneration, and from art, which is more concerned with the expression of ideas. However, the distinction is not clear-cut, and many games may also be considered work and/or art. Key components of games are goals, rules, challenge, and interactivity. Games generally involve mental or physical stimulation, and often both. Many games help develop practical skills, serve as a form of exercise, or otherwise perform an educational, simulational or psychological role.
Games are often classified by the components required to play them (e.g. a ball, cards, a board and pieces or a computer). In places where the use of leather is well established, the ball has been a popular game piece throughout recorded history, resulting in a worldwide popularity of ball games such as rugby, basketball, football, cricket, tennis and volleyball. Other tools are more idiosyncratic to a certain region. Many countries in Europe, for instance, have unique standard decks of playing cards. Other games such as chess may be traced primarily through the development and evolution of its game pieces. Many game tools are tokens, meant to represent other things. A token may be a pawn on a board, play money, or an intangible item such as a point scored. Games such as hide-and-seek or tag do not utilise any obvious tool. Rather its interactivity is defined by the environment. Games with the same or similar rules may have different gameplay if the environment is altered. For example, hide-and-seek in a school building differs from the same game in a park; an auto race can be radically different depending on the track or street course, even with the same cars.
A video game is a game that involves the interaction with a user interface to generate visual feedback on a video device. Video games may have a reward system—such as a score—that is based on accomplishment of tasks set within the game. The "video" in "video game" traditionally refers to a raster display device. However, with the popular use of the term "video game", it now implies any type of display device. The electronic systems used to play video games are known as platforms; examples of these are personal computers and video game consoles. These platforms are broad in range, from large computers such as mainframes, to handheld devices such as cell phones and PDAs. Specialized video games such as arcade games, while previously common, have gradually declined in use. Many players identify their platform of choice as a distinct form of video gaming apart from the rest. The main separations between platforms are their design, technical capabilities, and available video games. The user interface to manipulate video games is generally called a game controller, which varies across platforms. For instance, a dedicated console controller might consist of only a button and a joystick, or feature a dozen buttons and one or more joysticks. Early personal computer based games historically relied on the availability of a keyboard for gameplay, or more commonly, required the user to purchase a separate joystick with at least one button to play. Many modern computer games allow the player to use a keyboard and mouse simultaneously. Beyond the common element of visual feedback, video games have utilized other systems to provide interaction and information to the player. Chief examples of these are sound reproduction devices (speakers) and an array of haptic peripherals (i.e., vibration or force feedback). One variant even utilized heat and mild electric shocks when the player failed to succeed.
These are the descriptions of "game" term. In my blog you will find more detailed info on few genres an types of games. I took the info mostly from wiki on the stuff I know and play most. If you find it useful, feel free to comment any post, add your ideas, or ask to add info on more genres. The blog will continue to improve with your help.