A system for composing or modifying a virtual reality experience sequence , said virtual reality experience sequence comprising on the one hand several locations linked together, a link between two locations being operated by a navigation node , and on the other hand media contents linked to the locations , a link between a location and a media content being operated by media nodes , said system comprising: - a module for composing a virtual reality experience sequence , - a configuration file or a set of configuration files comprising: ∘ at least one scene characterized by primary scene fields , said primary scene fields comprising a unique identifier of said scene and an access means to an environment media file representing a location , ∘ at least one navigation node characterized by primary navigation fields , said primary navigation fields comprising a unique identifier of a departure scene , a unique identifier of an arrival scene , a position of the navigation node in the location of the departure scene according to a spherical coordinate system (O, x, y, z) and a transition rule , ∘ at least one media node characterized by primary media fields , said primary media fields comprising a unique identifier of the scene on which the media node depends, a position of the media node in the scene location comprising the media node according to a spherical coordinate system (O, x, y, z) , an access path to a content media file and a control rule , and - a device including media files , said primary fields being associated with data elements defining a value of these primary fields , said module for composing a virtual reality experience sequence comprising a recording device provided with rules allowing it to record the data elements in the configuration file or the set of configuration files , said data elements at least partially defining the composed or modified virtual reality experience sequence . - a module for composing a virtual reality experience sequence , - a configuration file or a set of configuration files comprising: ∘ at least one scene characterized by primary scene fields , said primary scene fields comprising a unique identifier of said scene and an access means to an environment media file representing a location , ∘ at least one navigation node characterized by primary navigation fields , said primary navigation fields comprising a unique identifier of a departure scene , a unique identifier of an arrival scene , a position of the navigation node in the location of the departure scene according to a spherical coordinate system (O, x, y, z) and a transition rule , ∘ at least one media node characterized by primary media fields , said primary media fields comprising a unique identifier of the scene on which the media node depends, a position of the media node in the scene location comprising the media node according to a spherical coordinate system (O, x, y, z) , an access path to a content media file and a control rule , and ∘ at least one scene characterized by primary scene fields , said primary scene fields comprising a unique identifier of said scene and an access means to an environment media file representing a location , ∘ at least one navigation node characterized by primary navigation fields , said primary navigation fields comprising a unique identifier of a departure scene , a unique identifier of an arrival scene , a position of the navigation node in the location of the departure scene according to a spherical coordinate system (O, x, y, z) and a transition rule , ∘ at least one media node characterized by primary media fields , said primary media fields comprising a unique identifier of the scene on which the media node depends, a position of the media node in the scene location comprising the media node according to a spherical coordinate system (O, x, y, z) , an access path to a content media file and a control rule , and - a device including media files , <EOS>