In simple, the can build his dream world using various structures, buildings, and materials. Most of Single-player games revolve around virtual worlds full of non-player characters and these games enable the players to rescue the state of the world. There are different types of virtual world games such as Social, Medical, Commercial, E-commerce, Entertainment and more. The common factor in virtual world games is fantasy environment based on the reality.
Massively Multiplayer Online games have a huge variety of worlds including the sci-fi, the real world, horror, sports, and historical milieus. The communication between players can take place, ranging from the graphical icon, text, sound, visual gesture, rarely, voice command, balance scenes and more. In simple, the players can enjoy the second life in virtual world simulations, where they can get full control of their lives, start their families, and perform various activities. These virtual avatars can be 2D, textual or 3D graphical, or live video characters with touch and auditory sensations. Virtual World is a subgenre of Simulation takes place in the computer-based environment, in which the players can create their online virtual avatars, explore the world, participate in fun-filled activities and communicate with each other.