A system for facilitating shared XR experiences is configurable to access a first spatial map of a first physical environment associated with a first user and identify one or more first physical aspects of the first physical environment based on the first spatial map. The system is also configurable to access a second spatial map of a second physical environment associated with a second user and identify one or more second physical aspects of the second physical environment based on the second spatial map. The system is also configurable to define a first XR experience region for the first physical environment based on the second physical aspects of the second physical environment, or define a second XR experience region for the second physical environment based the first physical aspects of the first physical environment.