everything-game-dev-code

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Not just a prompt collection — a structured operating system for game projects that combines:

• Rules for policy and standards
• Agents for role specialization
• Commands for repeatable entry points
• Skills for reusable execution patterns
• Contexts for phase-specific behavior
• Hooks for workflow automation
• Harness adapters for Claude, Codex, Cursor, OpenCode, and Kiro (see docs/harness-support.md for what each one supports)

Quickstart

git clone https://github.com/MRCalderon3D/everything-game-dev-code.git
cd everything-game-dev-code
npm run setup:hooks

npm run setup:hooks wires the repo's pre-commit checks (structure sync + validation) so committed artifacts never drift; it needs Node.js 18+ and takes one second. Run npm run doctor at any time to diagnose your installation (environment, hooks, active engine profile, generated-artifact drift) with remediation hints.

Open the folder in your AI coding assistant (Claude Code, Cursor, Codex, OpenCode, or Kiro). The scaffold is loaded from the assistant's adapter plus the shared AGENTS.md, rules/, commands/, agents/, and skills/ layers.

Then type commands in the chat:

Command	What it does
/plan	Outline your project before coding
/gdd	Generate a Game Design Document
/tdd	Apply test-driven development to the current task
/scene-bootstrap	Scaffold a new scene
/unity-setup	Bootstrap a Unity project with conventions
/unity-build-fix	Diagnose and fix Unity build errors
/godot-setup	Bootstrap a Godot project
/unreal-setup	Bootstrap an Unreal project
/web-setup	Bootstrap a web (HTML5) project, 2D canvas or 3D WebGL
/generate-assets	Generate real assets — images, skyboxes, 3D models, SFX, music, voice, video — from text prompts
/full-game	Orchestrate an entire game from scratch (experimental)

You don't have to follow a specific order. Pick whatever command fits your current need — start a new project, generate a GDD for an existing one, run a QA review, or fix a build error.

Step-by-step guide

The guides/Dash & Collect/ folder contains a full tutorial that walks through building a game using the scaffold's commands, agents, skills, and contexts across all project phases.

Example projects

The samples/ folder contains thirteen complete HTML games built with the /full-game command in a single pass each (PirateInvaders, Tetris2DMutation, LosRenacidos, pacmanAI, harness-comparison variants, PrismDefense3D — the first 3D sample, built on Three.js against the web 3D rules, plus its CC0-textured Visuals variant and its AssetsGen variant where every model, texture, skybox, sound, and the intro cinematic were generated through the /generate-assets layer, and NebulaLance — a 2.5D R-Type-style shoot-'em-up whose ship, enemies, boss, nebula, audio, and image-to-video menu cinematic are all AI-generated), plus a writeup comparing how different AI harnesses performed on the same brief. For real projects, we recommend going step by step.

Goals

• Keep shared game-development standards engine-neutral.
• Let Unity, Unreal, Godot, and the web layer each extend the base cleanly without contaminating one another.
• Support real production work across design, engineering, content, QA, release, and live ops.
• Turn repeated solutions into reusable skills and structured workflows.
• Make the repository portable across multiple coding assistants and harnesses.

Repository Model

This scaffold is organized in layers: