The final screenplay was credited to McWilliams, Richard Hare and Mark Drop. McWilliams wrote the second part of the game to be more psychological, with Drew facing his fears, living out his fantasies and eventually restoring his creativity. The character of Flux Wildly was created after that of Drew Blanc, as a companion and "fun-loving" sidekick, because he gave a window "into the 'real' Drew". To McWilliams, Flux was also "a great addition" for the puzzles and humor. Developers aimed at creating a world that felt as though it was "living" and that evolved as the story events progressed. To accomplish that in writing, the NPC dialogue was programmed to change as critical events happened in the game so that characters commented on these events instead of just repeating dialogue from earlier.
