How to buy 1,000 Robux to change your username on Roblox Robux are the in-game currency of Roblox, and they may be used to buy in-game improvements and avatar accessories.

According to a now-removed Reddit post, one Roblox player, previously known as "Coo7kii," spent 802,000 Robux to change their username.

A Roblox player spent over $8,000 changing their username. The player renamed their account 802 times, revealing unusual spending habits.