For game design planning education, we researched step by step learning method from storyline setting to game content evaluation. In this process, we developed 'Content Generated Tree' educational model applying the segmentation, classification, and prediction process of decision tree theory. This model is divided into the trunk stage as a story setting, the node generation stage as a content branch, and the conformity assessment. In the node generation stage, there are 'Game Theme' stage for determining the overall direction of the game, 'Interest Element' stage for finding the unique joy of the development game, and 'Game Format' stage for setting the visualization direction. The learner creates several game content combinations through content branching, and evaluates each content combination value. The education model was applied to 19 teams, and the efficiency of the step by step learning process was confirmed.

ABSTRACT
 1. 서론
 2. Game story design
 3. Game Theme, Interesting Factor,Design of the Format
 4. Use of Decision Tree Theory
 4. Conclusion
 Reference

• 김성곤(Department of Digital Contents Design, University of Ulsan) | Sungkon Kim Correspondence to