Skill UI

A comprehensive guide covering the fundamental principles of interactive entertainment design. This resource details core loop creation, structuring a Game Design Document (GDD), analyzing player psychology (motivation, reward schedules), balancing difficulty (flow state), and designing effective progression systems. It is essential for game developers, product managers, and creative designers planning engaging user experiences.

This framework outlines the 'Hook Model' (Trigger, Action, Variable Reward, Investment) for building deeply engaging, habit-forming product loops. It guides designers in optimizing user retention, understanding behavioral psychology, and structuring product features to move users from deliberate usage to automatic, routine behavior. Use it for onboarding, feature design, and improving long-term user stickiness.