Design complete games through conversational AI — from elevator pitch to asset prompt tree.

Game Builder Overview

The Game Builder transforms the SpriteSynth MCP into a Game Pre-Production Studio. Instead of generating random assets one at a time, you work through a conversational design funnel that produces a complete game design repository — including a game bible, asset dependency graph, and AI generation prompts for every single asset your game needs.

This is not an AI asset generator. It is an AI game producer, art director, and content planner that ensures creative consistency and scope control before any assets are generated.

Why the Game Builder?

Most AI game generation workflows look like:

"Generate a platformer."

Which produces a random collection of code, sprites, sounds, and mechanics that don't fit together.

The Game Builder solves three core problems:

Problem	Solution
Creative consistency	Style DNA + locked creative direction ensures all assets share the same visual language
Scope management	Config-driven scope limits cap enemies, biomes, NPCs, and items to match your team size and timeframe
Asset planning	Recursive asset discovery ensures nothing is forgotten — every mechanic triggers its required asset set

How It Works

The Game Builder uses a progressive design funnel with 5 stages. Each stage builds on the previous one:

Vision → Scope → Bible → Assets → Review

Stage 1: Vision

Define the core concept of your game:

Elevator pitch: One-sentence description
Genre: Single genre or genre-mix (e.g. "farming-sim + roguelike")
Comparable games: Reference games with specific aspects to emulate
Story & Theme: Narrative premise and core mood

The MCP asks you one question at a time, building up a structured game design document.

Stage 2: Scope

Set realistic constraints before planning details:

Team size: solo, small, medium, large
Timeframe: weekend, month, quarter, year
Quality target: prototype, indie, steam-quality

The system then estimates realistic caps: max_enemy_types: 8, max_biomes: 3, max_npcs: 15 — actively preventing scope creep.

Stage 3: Design Bible

Generate a complete design bible covering:

Core gameplay loop
Progression and economy systems
Combat mechanics
Narrative structure
Controls and UX principles

Creative direction can be locked at this stage, preventing future design drift.

Stage 4: Asset Planning

The system recursively discovers every asset your game needs:

Canonical taxonomy: Config-defined minimum asset sets per genre
Mechanic discovery: Additional assets triggered by features like fishing, crafting, mounts, etc.
Dependency graph: Relationships between assets (characters → animations → tilesets)
Asset prompts: AI generation prompts pre-filled with style DNA for consistency
Budget estimation: Total asset count by category with risk factors

Stage 5: Review & Export

A multi-criteria review scores your design:

Criteria	Weight	What It Checks
Fun	30%	Core loop engagement, player agency, reward pacing
Cohesion	25%	Art-mechanic fit, narrative-theme alignment
Scope Risk	25%	Asset count vs team/time, feature creep
Market Fit	20%	Genre conventions, unique hook clarity

The result is a ship probability and specific recommendations.

Finally, the system exports a complete design repository:

/game/{title}/
  GAME_BIBLE.md
  VISION.md
  SCOPE.md
  design/core-loop.md
  design/progression.md
  design/combat.md
  art/STYLE_DNA.md
  art/creative-direction.md
  assets/ASSET_MANIFEST.md
  assets/asset-budget.md
  assets/asset-prompts/{category}/{asset}.md
  meta/game_genome.json
  meta/dependency_graph.json
  meta/scope_report.json

Quick Start

In a single conversation with Claude or Cursor:

1. "Let's design a game. I want a creature-collector metroidvania."
2. "Stardew Valley meets Hades with Pokemon-style creature collecting."
3. "Solo dev, one year, indie quality."
4. "Pixel art, adventurous tone."

The MCP guides you through each stage, calling the appropriate tools and storing the design in your account.

Advanced Features

Beyond the core 5 stages, the Game Builder includes:

Style DNA extraction: Structured visual analysis from reference games (perspective, saturation, contrast, shape language, color script)
Art direction bible: Shape languages for hero/villain/neutral, color scripts per game phase, palette suggestions
Scope compression: Analyzes ideal vs realistic scope and recommends cuts
Vertical slice planning: Minimum 30-minute playable demo plan with P0/P1/P2 priority tiers
Coding context packs: Spec, schema, test, and UI documentation for every game system
Design health checks: CI/CD-style checks across scope, fun, lore, balance, and art consistency
Competitive positioning: Steam tags, market gap analysis, competitor identification

See the Game Builder Workflow guide for a complete walkthrough, or the Tools Reference for detailed parameter documentation.

Note

The Game Builder is a design and planning tool. It produces a complete game design document and asset prompt tree. You then use the standard generation tools to create the actual assets, or export the design repository to feed into AI coding agents.

Game Builder Overview

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