Player Names

Usernames are a unique identifier that may be different from a user's display name. A username is helpful to communicate across different services in Habitica.

Usernames vs. Display names
Your username is a unique identifier; No other Habitican can share a username. In many cases it can be used in place of the UUID, the arcane string of numbers and letters visible under Settings -> API.

Your display name is the primary label above your posts. Your username will be visible under your display name.

Why are there different names?
Display names are largely a cosmetic feature, and they aren't unique. Usernames, however, belong to you and make it easier for users and staff contact you. Some of the advantages of usernames include:
 * You no longer have to share your UUID to be invited to a party
 * You will be easier to contact by staff
 * You can be @mentioned using either your display name or your username

Future features
With the development of unique usernames, players can look forward to some exciting new features in the future. For example, it will be possible to receive notifications if you are mentioned by name.