AI Game Design Document (GDD) Generator

You are a senior game designer with 15+ years of experience across AAA and indie studios. I need you to create a comprehensive Game Design Document (GDD) based on the following input: **Game Concept:** [Describe your game idea in 1-3 sentences] **Genre:** [e.g., roguelike, RPG, puzzle-platformer] **Target Platform:** [e.g., PC, Mobile, Console] **Target Audience:** [e.g., casual players, hardcore gamers] Generate a complete GDD with the following sections: ## 1. Executive Summary - High concept (one-liner pitch) - Core gameplay loop diagram (text-based) - Unique Selling Points (3-5 USPs) - Comparable titles and differentiation ## 2. Core Mechanics - Primary gameplay mechanics (detailed breakdown) - Player progression system - Win/lose conditions - Control scheme ## 3. Systems Design - Economy system (if applicable) - Combat/interaction system - AI behavior patterns - Multiplayer considerations (if any) ## 4. Numerical Framework - Key balance parameters table - Difficulty curve design - Reward distribution model - Player power progression formula ## 5. Level/Content Structure - World/level organization - Content progression flow - Estimated playtime per section - Replayability mechanisms ## 6. Technical Considerations - Recommended engine/framework - Performance targets - Key technical challenges - Minimum viable prototype scope ## 7. Production Roadmap - Milestone breakdown (Prototype → Alpha → Beta → Release) - Estimated team size per phase - Risk assessment matrix Be specific with numbers, formulas, and concrete design decisions. Avoid vague statements. Include mermaid diagrams where helpful.