> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Gamertags

> Gamertags topic hub covering classic and modern XBOX gamertags, UTF-8 character ranges, backwards compatibility, and rendering best practices for titles.

Explore gamertags topics for XBOX game development.

<CardGroup cols={2}>
  <Card title="Classic gamertags" icon="right-to-bracket" href="/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-classic-gamertags-overview">
    Classic gamertags supports only ASCII characters a-z, A-Z, 0-9, comma (,), and space (ASCII character 0x20).
  </Card>

  <Card title="Gamertags" icon="user" href="/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-gamertags-overview">
    Microsoft offers two forms of gamertags - classic and modern.
  </Card>

  <Card title="Backwards compatibility and gamertag" icon="database" href="/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-backwards-compatibility">
    This article explains the backwards compatibility of modern gamertags and how they are rendered in titles that supports only classic…
  </Card>

  <Card title="Best practices and testing for modern" icon="gauge-high" href="/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-gamertags-best-practices-and-testing">
    This articles describes best practices and instructions for testing modern gamertags support in titles.
  </Card>

  <Card title="Modern gamertags definition and" icon="lightbulb" href="/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-gamertags-definition">
    A unique modern gamertag is the combination of the modern gamertag and suffix components.
  </Card>

  <Card title="Modern gamertags" icon="circle-info" href="/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-gamertags-overview">
    Since 2002, hundreds of millions of XBOX accounts that have been created and the XBOX gamertag namespace was saturated.
  </Card>

  <Card title="Gamertags" icon="right-to-bracket" href="/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-gamertags-toc">
    This section describes gamertags and provides details about their supported characters.
  </Card>

  <Card title="Utf-8 character ranges for modern" icon="right-to-bracket" href="/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-gamertags-unicode">
    This topic describes modern gamertags and the UTF-8 character ranges that are supported for them by XBOX services.
  </Card>
</CardGroup>


## Related topics

- [Gamertags](/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-gamertags-toc.md)
- [Modern gamertags](/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-gamertags-overview.md)
- [Gamertags overview](/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-gamertags-overview.md)
- [Gamertags modernos](/es/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-modern-gamertags-overview.md)
- [Classic gamertags](/services/xbox-services/fundamentals/identity/user-profile/gamertags/live-classic-gamertags-overview.md)