Derek's Prototyping Process

The very first build of Spelunky Classic he ever shares looks and feels remarkably close to the final release, a reminder of how quickly the core design came together. Derek says if he had thought it would take three years up front that he wouldn't have done it or had Andy join along to like help him with it right because it sounds like a year sounds like oh yeah we can do this but three years like who's going to commit to that? He also goes on to describe how that was maybe necessary.