Kabe Wilson reassembled the words of Virginia Woolf's A Room of One's Own to tell an entirely different story about modern racial and cultural politics. This short article is a great read about his process and how unexpected connections informed his word choices.
When I talk about how collaborative the gamewriting process is, people often ask me if I'm bothered by the limitations. The answer is no. Parameters can inspire creativity, because you must figure out how to tell your story within those constraints. The story of how Kabe Wilson linked Woolf's writing to Toni Morrison and Howard University is a wonderful example of this kind of forced creativity. Thinking outside (or around) the box can lead to serendipities and epiphanies. You often end up with more original story ideas because you couldn't go the traditional route or employ the usual tropes. It's more difficult to work within constraints. And it can require more research and more examination. But if you succeed, the payoff is profound.
That being said, too many constraints don't leave you any room to move and that stifles creativity. So there's a fine line.