This article is dedicated to the phenomenon of video games virtual world. We have overviewed specific literature that let us formulate the generalized definition of virtual world: computer- based three or two dimensional environment or space that can simulate real world where users represented by avatars are able to communicate or interact simultaneously or synchronically. This definition is quite limited when it comes to virtual non-ICT worlds. To understand the essence of virtual world we referred to postmodern philosophy that implies the possibility of multiple full fledged worlds. We have formulated one thesis stating that virtual world is the universum of simulacra and the second thesis stating that virtual world is fiction, imaginary and illusory, that becomes real and actual in the process of interaction between the Architect of a virtual world and the Beholders. The article proposes a new view on virtual world of video games.