It is a multiplayer game where one player will draw a drawing as per the word given by the computer, and other players have to guess the word by looking at the drawing. The player with the most correct guesses wins the game, whereas the player with the least point gets eliminated.
Whoever is setting up the game as a host, can add custom words and even limit the game to use only them! This will help if you wish to explore a specific topic during your Gameshop.