Is there a certain format to write game scripts?

I''m not entirely sure what you mean. The format would depend on what engine you''re using. If you could be a bit more specific we could more accurately answer your question.

Just Smile and Nod...

By script do you mean the game characters speech / intro text, or do you mean scripting of puzzles and game play elements?

Dan Marchant
Obscure Productions
Game Development & Design consultant

Im talking characters, story, text, etc...