What problem does it solve? Turning a vague game idea into a structured, validated game concept is hard without a process. This Skill runs a professional studio-style ideation workflow that takes you from zero idea to a complete game concept document with pillars, core loops, and feasibility analysis. ## Core Features & Use Cases - Six-Phase Guided Ideation: Walks through creative discovery, concept generation, core loop design, pillars and anti-pillars, player type validation, and scope feasibility using frameworks like MDA, Bartle taxonomy, and Self-Determination Theory. - Interactive Collaboration: Asks constrained questions at key decision points instead of generating everything silently, acting as a creative facilitator for your vision. - Structured Document Output: Produces a complete game concept document saved to design/gdd/game-concept.md, resuming from existing concept or pillar files if they already exist. - Use Case: A solo developer with a rough "cozy farming roguelike" idea uses this Skill to refine it into three distinct concepts, pick one, define its core loops and pillars, validate the target player type, and get an engine recommendation with an MVP scope. ## Quick Start Invoke the brainstorm skill with a genre hint like "roguelike" or "open" to start a guided game concept ideation session.