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BMAD-METHOD/docs/explanation/game-dev/bmgd-vs-bmm.md
forcetrainer e535f94325 docs: comprehensive style guide update with reference and glossary standards 
Style Guide Additions:
- Add Reference Structure section with 6 document types (Index, Catalog,
  Deep-Dive, Configuration, Glossary, Comprehensive)
- Add Glossary Structure section with table-based format leveraging
  Starlight's right-nav for navigation
- Include checklists for both new document types

Reference Docs Updated:
- agents/index.md: Catalog format, universal commands tip admonition
- configuration/core-tasks.md: Configuration format with admonitions
- configuration/global-config.md: Table-based config reference
- workflows/index.md: Minimal index format
- workflows/core-workflows.md: Catalog format
- workflows/document-project.md: Deep-dive with Quick Facts admonition
- workflows/bmgd-workflows.md: Comprehensive format, removed ~30 hr rules

Glossary Rewritten:
- Converted from 373 lines with ### headers to 123 lines with tables
- Right nav now shows 9 categories instead of 50+ terms
- Added italic context markers (*BMGD.*, *Brownfield.*, etc.)
- Alphabetized terms within categories
- Removed redundant inline TOC

All Docs:
- Remove horizontal rules (---) per style guide
- Remove "Related" sections (sidebar handles navigation)
- Standardize admonition usage
- Archive deleted workflow customization docs

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-12 00:23:05 -05:00

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title, description
title description
BMGD vs BMM Understanding the differences between BMGD and BMM

BMGD (BMad Game Development) extends BMM (BMad Method) with game-specific capabilities. This page explains the key differences.

Quick Comparison

Aspect BMM BMGD
Focus General software Game development
Agents PM, Architect, Dev, SM, TEA, Solo Dev Game Designer, Game Dev, Game Architect, Game SM, Game QA, Game Solo Dev
Planning PRD, Tech Spec Game Brief, GDD
Types N/A 24 game type templates
Narrative N/A Full narrative workflow
Testing Web-focused Engine-specific (Unity, Unreal, Godot)
Production BMM workflows BMM workflows with game overrides

Agent Differences

BMM Agents

  • PM (Product Manager)
  • Architect
  • DEV (Developer)
  • SM (Scrum Master)
  • TEA (Test Architect)
  • Quick Flow Solo Dev

BMGD Agents

  • Game Designer
  • Game Developer
  • Game Architect
  • Game Scrum Master
  • Game QA
  • Game Solo Dev

BMGD agents understand game-specific concepts like:

  • Game mechanics and balance
  • Player psychology
  • Engine-specific patterns
  • Playtesting and QA

Planning Documents

BMM Planning

  • Product Brief → PRD → Architecture
  • Focus: Software requirements, user stories, system design

BMGD Planning

  • Game Brief → GDD → Architecture
  • Focus: Game vision, mechanics, narrative, player experience

The GDD (Game Design Document) includes:

  • Core gameplay loop
  • Mechanics and systems
  • Progression and balance
  • Art and audio direction
  • Genre-specific sections

Game Type Templates

BMGD includes 24 game type templates that auto-configure GDD sections:

  • Action, Adventure, Puzzle
  • RPG, Strategy, Simulation
  • Sports, Racing, Fighting
  • Horror, Platformer, Shooter
  • And more...

Each template provides:

  • Genre-specific GDD sections
  • Relevant mechanics patterns
  • Testing considerations
  • Common pitfalls to avoid

Narrative Support

BMGD includes full narrative workflow for story-driven games:

  • Narrative Design workflow
  • Story structure templates
  • Character development
  • World-building guidelines
  • Dialogue systems

BMM has no equivalent for narrative design.

Testing Differences

BMM Testing (TEA)

  • Web-focused (Playwright, Cypress)
  • API testing
  • E2E for web applications

BMGD Testing (Game QA)

  • Engine-specific frameworks (Unity, Unreal, Godot)
  • Gameplay testing
  • Performance profiling
  • Playtest planning
  • Balance validation

Production Workflow

BMGD production workflows inherit from BMM and add game-specific:

  • Checklists
  • Templates
  • Quality gates
  • Engine-specific considerations

This means you get all of BMM's implementation structure plus game-specific enhancements.

When to Use Each

Use BMM when:

  • Building web applications
  • Creating APIs and services
  • Developing mobile apps (non-game)
  • Any general software project

Use BMGD when:

  • Building video games
  • Creating interactive experiences
  • Game prototyping
  • Game jams