The present disclosure generally relates to systems and methods for creating, publishing, accessing, and sharing AR, VR, and/or XR content. In embodiments, users may collaborate in an XR environment. In embodiments, a system disclosed herein includes a backend module and a user client that permits creation and/or viewing of XR content. Embodiments enable users to create customized XR content that is published to users based on predetermined times and/or locations. Embodiments provide for training and collaborative XR environments accessed by multiple users simultaneously.