The simple truth of game development is that a finished game will never be all that you imagine it to be. Even the best managed game development processes result in a game that represents 5 to 10 percent of the initial ambition. Ideas are cheap, implementation is expensive and at a certain point games must be shipped. For instance, even if my team’s current game Enhanced Wars is a runaway success and we continuously improve it for the 3 years after launching, it will never be all that we want it to be.
Once upon a time, when I set out to design a game I would start by writing a lengthy document detailing every aspect of the game. Eventually I learned that these documents are largely a waste of effort. No one else would ever read a 75 to 100 page document and most of the initial concepts get changed dramatically in implementation. Nowadays when working on a game, I prescribe a method of managing the design process for all these features that is lightweight and flexible.
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