39.1 Introduction39.2 Game Analytics Approaches to Modeling User Performance, Skills, and Behaviors39.2.1 Game Metrics39.2.2 Analysis Techniques39.2.2.1 Individual Analysis39.2.2.2 Communal Analysis39.3 Game Analytics and Adaptive Techniques39.3.1 Skill-Based Difficulty Adaptation39.3.2 Emotion-Based Adaptation39.3.3 Style-Based Adaptation39.4 Game Analytics and Recommendation Systems39.5 Game Analytics and Team Matching Techniques39.6 ConclusionReferences