Example of game design document.

Starting random word: Turtle.

we started with things that could be done with turtles and eventually made a link to sports that involve turtles so like curling but instead you use a turtle or hockey but the puck is a turtle or a shotput but instead you throw the turtle. Then once we had the core concept we expanded on that and created a premise and a backstory as to why the turtles are being used as sporting objects.