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.

Gamertag, username, display name; a Roblox player has multiple names, each having a purpose. Thankfully, usernames and display names chosen years ago can be changed.

Note: if you're trying to change your username because it contains your full name, try contacting Roblox support — they might implement the change for you, free of charge. Navigate to the home page.

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