Offline-First & Native
Built with C# and WPF on .NET 8 for lightning-fast native Windows performance. No sign-ups, no cloud dependency, 100% private.
GDDKit Documentation
The ultimate native desktop workspace for writing, structuring, and exporting Game Design Documents.
Explore GDDKit Features
Dual-Pane Markdown Editor
Write using standard Markdown syntax with real-time preview side-by-side. Focus on writing without dealing with heavy formatting.
12+ Section Presets
Start quickly with pre-defined industry templates: Core Loop, Mechanics, Lore, Art/Audio Directions, Milestones, and more.
Mermaid Diagram Support
Create interactive flowcharts, sequence diagrams, and mindmaps directly within your documentation using Mermaid.js syntax.
QuestPDF Themed Exports
Export beautiful PDFs using professional layouts (Studio Bible, Publisher Pitch, Blueprint, Indie Comic, Retro RPG, and more).
Project Changelog
Keep track of your game’s design iterations with built-in changelogs, categorizing modifications into Added, Fixed, Changed, or Removed.