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Changing your Username in Roblox will cost you 1,000 Robux, equivalent to $14.98. Whereas, the display name feature debuted in 2021 which is different than changing your username.
ROBLOX allows you to change this username, as well as your Display Name. It’s important to note that there are different rules and applications of both Usernames and Display Names.
The process for changing your display name on Roblox is fairly simple. Here's a full breakdown of how you can change your display name in Roblox.
How Can I Change My ROBLOX Display Name? You can change your Display Name for free, once every seven days. This is how other players see you in-game and isn’t unique to one player.
A Display Name is how other players will see you in-game. This feature appeared in 2021 and is available to all players free of charge. While Usernames are unique, two or more players can have the ...