Game Development Reference
within the game which can only be revealed by special combinations,
achieving certain objectives or by the input of 'secret' codes released on
web sites as marketing ploys. Unlockable content can add greatly to the
replay value of a game.
Voice over (VO) : Strictly speaking, a voice over refers to an off screen
narrator who gives background information or other story relevant
details. However, there are many within the industry who refer to all
recorded dialogue as voice over lines.
Writer-designer : If the designer of a game also writes the story and/or
dialogue, he's generally known as a writer-designer.
Zero-sum : Refers to a game like chess in which the general outcome is one
where there is both a winner and a loser.