Increasing adoption of the computer mouse, driven partially by the success of games such a

The game was originally distributed through the shareware distribution model, allowing players to try a limited part of the game for free but requiring payment to play the rest, and represented one of the first uses of texture mapping graphics in a popular game, along with Ultima Underworld.While l

Computer games and game addiction are often the subject of criticism, focusing largely on the influence of objectionable content and prolonged gameplay on minors. The Entertainment Software Association and other groups maintain that parents are responsible for moderating their children's behaviour, although the controversy has prompted attempts to control the sale of certain games in the United States.