For indie game developers

Your game, mapped
before it is built.

GDD.studio turns your game design document into a map you can actually finish. Pick a genre, get the sections every good GDD needs, and fill them one by one, with writing prompts, linked cards for every mechanic and character, and an export your team will read.

Free forever for 2 projects. No credit card.

How it works

A design doc that tells you what to write next

Blank pages kill game docs. GDD.studio gives you the structure, shows your progress, and keeps every idea one click away.

1

Pick your genre

Start from a template for horror, roguelike, puzzle, platformer, RPG, narrative, arcade or simulation. You get the sections that matter for that kind of game, each with guiding questions.

2

Fill the map, section by section

Every section is a tile with its status. Open one, write with prompts at hand, add cards for mechanics, characters, levels or sounds, and link them together.

3

Share a document people read

Export a clean PDF with cover and table of contents, grab the Markdown for your wiki, or send a read-only link to your team or your publisher.

Write without losing the thread

Text on the left, your game's pieces on the right

Write each section full screen, with guiding questions when you are stuck. Mechanics, characters, levels and sounds live as cards next to the text, so the document and the game design stay in sync.

  • Jump between sections from one bar, with their status at a glance
  • Link cards together (uses, depends on, triggers) and see the whole system as a graph
  • Autosave every few seconds, keyboard shortcuts, Cmd+K search everywhere

Everything in one place

Built for the way small teams design games

Genre templates

8 genres with tailored sections, guiding questions and tips. Or build your own structure.

Progress map

See what is done, in progress or still to write. The next section is always one click away.

Linked cards

Eight card types with their own fields: mechanics, characters, levels, assets, systems, story beats, UI screens, sounds.

AI brainstorm

Stuck on a section? Get genre-aware ideas to react to, never a ghost-written document.

PDF & Markdown export

A clean PDF with cover, table of contents and card sheets, or Markdown for your wiki.

Teams & share links

Invite your team with roles, or share a read-only link with a publisher or a playtester.

Pricing

Start free, go Pro when your game grows

No credit card to start. Cancel anytime.

Free

0 €/month

  • 2 projects
  • 3 genre templates (horror, roguelike, puzzle)
  • Markdown export, PDF with watermark
  • 1 share link
  • 3 AI brainstorms per day
Get started
Most popular

Pro

9 €/month

  • Unlimited projects
  • All 8 genre templates + your own
  • Full PDF export, no watermark
  • Unlimited share links and AI brainstorms
  • 1 team with 3 members
Go Pro

Team

Soon

  • Everything in Pro
  • 10 teams, 50 members
  • Custom branding on exports
  • Priority support
Coming soon

REST API

Let your tools and AI assistants work with your GDD

Token-authenticated API to read and update projects, sections, cards and links. Connect Claude, GPT or your own scripts.

  • Projects, sections and elements: full CRUD
  • Semantic links (uses, depends_on, triggers)
  • Enums endpoint for genres, types, platforms and statuses
  • Bearer tokens managed from your profile
Get an API token
api-example.sh
# Create a character card
POST /api/projects/{id}/sections/{id}/elements
{
  "title": "Fire Mage",
  "type": "character",
  "fields": { "role": "Antagonist" }
}

# Link it to a mechanic
POST /api/.../elements/{id}/links
{ "target_element_id": "…", "label": "uses" }

Your next game deserves a plan

Open the map, write the first section tonight, and know exactly what comes next tomorrow.

Start your GDD free