Systems and methods according to present principles provide a virtual environment, particularly but not exclusively for virtual and augmented reality, with the ability to offer compelling interactive advertisements that users can choose (or not) to interact with, without being forced to watch the same. In so doing, the systems and methods provide for addressable units, termed “vessels”, which are interactive and which provide the viewer with the ability to control their experience via an active selection, e.g., of advertisements. Such interactivity is provided along with the ability to enjoy a “main” item of content, in some implementations. In addition, the interactivity may be provided as part of an entertainment “hub” in which VR experiences may be launched and/or in which main content may be displayed. Thus, the system provides a new, addressable unit, such as for advertisements, for virtual content-viewing environments, hubs for the same, or other virtual environments.