Game design is the art of formulating planned system to facilitate play.
Formulation includes the following:
- Purpose: Why is this game being played?
- Intended results: What will happen when this game is played?
- Player interaction: What can the player do?
- Conversion: How will time and decision convert as intended?
Game: Systematized play.
Design: The creation of a plan or convention for the construction of an object or a system.