Unlike the film industry, where anyone can write a script and submit it to the film studios, there is no real equivalent in the game industry – they are simply not set up, in the main, for that kind of approach. A writer does not produce the “screenplay” for a game and then a studio makes the game. A development studio creates a proposal for a game, then brings a writer on board as the project requires it, sometimes at the point of developing the proposal itself. –Steve Ince –My Fingers are Blistered and Bleeding: Writing for Games (GIGNews)
Via Grand Text Auto.