A registered Roblox account is necessary for a user who wants to develop a game through the Roblox platform. A registered user can gain access to more features if he pays for a Builders Club membership.
Roblox is a game-creation platform in which players design and build their own games. The platform features a scripting language, terrain generation and custom particle system to add complexity to the created games. Anyone with a guest account can join a game that another player has built, but interaction with the game is limited. Sending friend requests, chatting with other users and customizing the appearance of the in-game avatar require a registered account. Registration is free, and the user can use a Facebook account to sign up.
As of 2015, the Roblox Builders Club has three tiers: Classic, Turbo and Outrageous. All membership tiers are available in monthly, biannual and annual plans, but users can opt for a lifetime membership with a one-time payment. Unlike users with free accounts, Builders Club members receive the platform's virtual currency every day, enjoy a signing bonus and have more in-game worlds in which they build their games. Roblox allows registered members to earn real money through the platform, and paid members have privileges that let them accumulate virtual currency faster for cashing out through PayPal.