01
Project structure
Start with a useful outline.
Use the 12-section GDD template or add a preset for a boss, quest, weapon, level, enemy, or UI screen.
- 12 core sections
- 6 presets
- Drag to reorder
Game design documents
for indie teams.
Write in Markdown, map systems with Mermaid, and export a readable PDF. Your project stays on your computer.
The $8 purchase includes future updates, and project files are stored locally.
Runs offline Markdown and Mermaid 8 PDF themes Portable .gddkit projects
GDD editor
Write, preview, and
export in one app.
Start with the built-in outline, add the sections you need, and save everything in a local .gddkit file.
02
Editor and preview
Markdown and diagrams, side by side.
Write in Markdown, add Mermaid blocks, and check the rendered output in Split view.
EditSplitPreview
03
Change history
Keep change notes with the project.
Record each version in the .gddkit file. Export the document and its diagrams as a styled PDF when it is ready to share.
- Version history
- 8 export themes
- Diagrams in PDF
Desktop app
Get GDDKit
for $8.
The purchase includes Windows, macOS, and Linux builds, plus future updates.
$8 one time
- Windows 10/11 x64
- macOS (Apple Silicon and Intel)
- Linux x64 AppImage
- Updates included