  This paper presents the 4E conceptual model, developed to formally analyze
investigation games from a game design perspective. The model encompasses four
components: Exploration, Elicitation, Experimentation, and Evaluation. Grounded
Theory was employed as the methodology for constructing the model, allowing for
an in-depth understanding of the underlying concepts. The resulting model was
then compared to existing literature, and its contributions were thoroughly
discussed. Overall, the 4E model presents a comprehensive framework for
understanding investigation games elements. It's application in two real-world
scenarios demonstrates its practical relevance.
