Server for rendering a virtual world image and control method thereof

A server comprising:

• a communication interface;
• and
• a processor configured to:
• render a virtual world image including an avatar corresponding to a user,
• transmit the virtual world image to a user terminal device through the communication interface,
• based on receiving, from the user terminal device through the communication interface, a first user command to add a virtual display device to the virtual world image, render the virtual world image on which content displayed on a display device corresponding to the virtual display device is displayed through the virtual display device,
• stop the rendering of the virtual world image based on determining that the user terminal device is not in use by the user.