Project Planning

Game Design Document

This online tool helps you organize an initial game idea and turn it into a clear, structured foundation document for further development.

Purpose and use

Early game ideas often contain many good but unstructured thoughts. This tool collects the most important design information in one place and organizes it into a game design document. It is deliberately not a complete, unchangeable GDD; it is a compact foundation for concept work, development, alignment and later documentation.

Describe the game idea, genre, goal, core loop, mechanics, controls, game world, characters or resources, progression, user interface and initial technical constraints. The tool creates a readable document with stable section titles. You can save or download it, split it into tickets, or pass it to Codex and other AI-assisted development tools.

Important terms explained

Game Design Document (GDD)
A structured description of a game's rules, content, systems and goals.
Core loop
The recurring sequence of player actions, decisions and rewards.
Game mechanic
A rule or system that defines what the player can do and how the game responds.
Progression
The player's or character's development through abilities, content, levels or unlocks.
MVP / vertical slice
The smallest meaningful scope or a small representative slice used to test the game idea.
UI and UX
UI is the visible interface; UX is the complete experience and how understandable the game feels.

Create a game design document

Fill in the most important fields. Bullet points are taken one per line; empty optional sections are omitted from the output. All processing happens locally in your browser.

A working title is enough. It can be changed later.

One mechanic per line. Focus on essential systems rather than every detail.

Options
Ready. The document is created locally in your browser.
0Sections
0Bullet points
0Words
0Characters

Finished game design document

The document is not sent to a server. You can copy or download it directly.

Quick start

  1. Enter the game idea, genre, goal and most important systems in the matching fields.
  2. Write list items on separate lines. Empty optional sections are left out of the result.
  3. Choose the desired format and enable or disable the additional sections.
  4. Create the document, check its structure, then move it into your development environment or Codex.

Created with TeraPower.de – Game Design Document.