That, for better and for worse, is a key function of games like Roblox. With “Robux,” you can buy anything from clothes to decorate your avatar to in-game items that can help your experience.

Steps for altering your avatar’s appearance in every Roblox experience, from adding and removing items to changing your skin ...

Roblox's players can buy Robux on an a la carte basis or through discounted subscriptions, while creators can accumulate it and cash it in for real-world currencies.