Space-adaptive algorithms aim to efectively align the virtual with the real to provide immersive user experiences for Augmented Reality(AR) content across various physical spaces. While such measures are reliant on real spatial features, eforts to understand those features from the user's perspective and refect them in designing adaptive augmented spaces have been lacking. For this, we compared factors of narrative experience in six spatial conditions during the gameplay of Fragments, a space-adaptive AR detective game. Confgured by size and furniture layout, each condition aforded disparate degrees of traversability and visibility. Results show that whereas centered furniture clusters are suitable for higher presence in sufciently large rooms, the same layout leads to lower narrative engagement. Based on our fndings, we suggest guidelines that can enhance the efects of space adaptivity by considering how users perceive and navigate augmented space generated from diferent physical environments.