Abstract: A virtual object system can coordinate interactions between multiple virtual objects in an artificial reality environment. Embodiments receive a first virtual object, the first virtual object including first properties, where the artificial reality environment is set in a real-world environment. Embodiments register the first properties of the first virtual object to receive notifications of events from the artificial reality environment. Embodiments receive one or more queries from a second virtual object and in response to the one or more queries, respond to the second virtual object with identified features of the real-world environment in which the artificial reality environment is set and identifications of one or more other virtual objects (e.g., the first virtual object). The second virtual object can use the identification of the first virtual object to register for events related to the first virtual object and/or communicate with the first virtual object.