> For the complete documentation index, see [llms.txt](https://docs.elixir.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.elixir.app/sdk/unity/authentication.md).

# Authentication

## **Cross-Platform Compatibility**

Whether your game runs on PC or mobile, our system guarantees comprehensive access to all available features across all platforms.

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[Desktop](/sdk/unity/authentication/desktop.md)
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[Mobile](/sdk/unity/authentication/mobile.md)
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