# Daily Bell Ringer — Writing Technical Design Documents (TDD) & Game Design Documents (GDD)

- Link: https://doss.academy/course-2-game-design-development-principles/unit-6-game-design-mechanics-rules-documentation/lesson-3-writing-technical-design-documents-tdd-game-design-documents-gdd/daily-bell-ringer/
- Published: 2026-10-18T12:28:06-04:00
- Author: matthew.leffler@jefferson.kyschools.us

Course 2: Game Design & Development Principles / Unit 6: Game Design Mechanics, 
Rules & Documentation / Lesson 3: Writing Technical Design Documents (TDD) & Game
Design Documents (GDD)

## Before we begin

What are the key sections that every professional Game Design Document (GDD) must
contain?

Record your initial thinking. Be ready to explain your reasoning and revisit your
response after the lesson.