When students at MIT competed against each other in the first real-time graphical computer game Spacewar in 1962 (Graetz 1981), probably none of them could have dreamt how realistic and complex computer games would develop to be in four decades and how large a business would grow around them. Commercial arcade games such as Pong and Space Invaders arrived in the 1970s, and home computers brought computer games within the reach of all enthusiasts in the 1980s. Since then, game development and programming have turned from being small amateur enterprises into a more professional and largerscale industry. Nowadays, the typical time span of development from an idea.
