I'm sorry to disappoint some of you people, but Zilch hasn't been invented by the creator of this flash game, it's a really old and fairly well known dice game.
It was featured in Hoyle Board & Puzzle Games and it was magnificently done there and it is very well managed in this little flash, so I personally applaud the creator and play this game a few times a day.
 "The Birdinator"){kind=icon}
 "Iso-Universe"){kind=icon}
 "Zilch"){kind=icon}