BUILD YOUR
GAME DESIGN
DOCUMENT.

A focused, Markdown-powered spec sheet tool for game designers. Structure your concept, mechanics, characters, and levels — then export a print-ready document.

No sign-up Browser-based Auto-save

Everything you need to spec your game.

Ten pre-built sections covering the full breadth of game design — from high concept to monetization.

01

10 STRUCTURED SECTIONS

Introduction, premise, gameplay, characters, level design, UI/UX, art, audio, tech, and business — pre-built and ready to fill.

02

MARKDOWN POWERED

Write with bold, italic, headings, lists, tables, and code blocks. Renders cleanly into the final document.

03

REFERENCE IMAGES

Attach mood boards, concept art, and diagrams to any section with captions. They flow into the final PDF.

04

PRINT-READY PDF

Cover page, table of contents, page numbers, and a branded footer. Print directly from your browser.

05

CUSTOM SECTIONS

Add your own sections beyond the 10 defaults. Tabbed interface keeps everything organised and navigable.

06

AUTO-SAVE & BACKUP

Your work saves automatically to your browser. Export a JSON backup at any time — never lose a draft.

Free forever. Pro when you need it.

Solo design is free. Cloud sync, team collaboration, and export options come with Pro.

FREE

TIER_01

For solo designers getting started

£0 / FOREVER
  • [+] All 10 sections + custom sections
  • [+] Markdown editor with live preview
  • [+] Reference image uploads
  • [+] Print / Save as PDF
  • [+] Auto-save & JSON backup
  • [—] Single device only
  • [—] No cloud sync or team access
Start Writing Free
RECOMMENDED

PRO

TIER_02

For teams who need the cloud

£6 / MONTH or £49/yr
  • [+] Everything in Free
  • [+] Cloud sync — any device
  • [+] Multiple GDD projects
  • [+] Team collaboration & sharing
  • [+] Version history & rollbacks
  • [+] Remove footer credit
  • [+] DOCX & HTML export
Get Pro