Yes, You Need a Game Design Document (And Here's How)

Many game designers start with a brilliant concept only for the game itself to collapse into disjointed mechanics and drifting scope. The solution is a Game Design Document. A GDD is the blueprint of a good game, the foundational document for electronic and tabletop games alike. Join an experienced RPG author and designer for a class on crafting a functional GDD that defines your game from the top down. You'll leave with the tools to organize and structure your development process from concept to completion.