The dualistic paradigm of human-nature relationship prevailing in Western societies, here referred to as classic modern Western (CMW) relationship to nature, has become a conceptual prison when faced with ecological crises. Simulation games can be useful artifacts for transforming a player’s apprehension of such subject. Therefore, the research presented here is part of a thesis seeking to help one deconstruct its CMW relationship to nature by playing a simulation game. To achieve this, it is essential to be able to observe the presence and patterns of expression of the dimensions composing the CMW relationship within the game. However, to our knowledge, there is no such conceptual framework specific to games. Therefore, this paper aims to present for the first time a conceptual framework of the main dimensions of the CMW relationship, within a game frame, and to experience its evaluation method on players. The presented exploratory research crosses borders of scientific disciplines, spanning both human geography and design sciences, and drawing insights from other humanities. Starting with a multidisciplinary literature overview, this article describes the process and result of synthesizing the dimensions of the CMW relationship to nature. The conceptual framework obtained leads to a methodological approach, grounded in the case study My Spot of Sea, to observe these dimensions among players, considering design effects. Finally, results from applying this method to game sessions with middle school students are presented and discussed.