Describes Robux, the money used in the video game "Roblox." Discusses how to use Robux to customize your avatar or play certain games, and how to sign up for the optional "Roblox" Premium. Also explains how players can create items to sell in the "Roblox" game and earn real money, and warns readers to follow a budget when spending Robux within the game. Includes color photographs, a glossary, and further resources.