# Game Design Doc

> Capture a game's pillars, loops, and scope in a design doc the team can build from.

- Skill: `tinyhumansai/game-design-doc` (Agent Skill)
- Install (CLI): `npx skillmds@latest add tinyhumansai/game-design-doc`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tinyhumansai/game-design-doc/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tinyhumansai (https://skillmd.com/u/tinyhumansai)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/tinyhumansai/game-design-doc

---


# Game Design Doc

Turn a concept into a design doc that names what the game is and, just as
importantly, what it is not.

## When to use

- A new game or major feature is greenlit.
- The team disagrees on what they are building.

## Steps

1. **State** the fantasy: what the player feels and does.
2. **Name** the three pillars every decision defers to.
3. **Describe** the core loop and the progression around it.
4. **Scope** the first playable and what is explicitly out.
5. **List** the risks and the open questions for the operator.

## Output

A design doc: fantasy, pillars, core loop, scope, and risks, following the
[[Design pillars]]. The team builds against it.