> ## 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.

# PlayFab Services for GDK

> Compare PlayFab Services SDK options for the Microsoft GDK on XBOX and Windows: C/C++, Unreal, Unity, and Legacy C++ with quickstart links.

# PlayFab Services SDKs supporting Microsoft GDK

The following SDKs are available for game client development on Windows and XBOX with the GDK. The right SDK depends mostly on your choice of game engine.

| PlayFab SDK | Description                                                                                                                                                                       | Learn More                                                      |
| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------- |
| C/C++       | Newest SDK featuring a portable C interface and granting full control of memory and threading to the game developer. Intended for integration into high performance game engines. | [C/C++ GDK Quickstart](/services/playfab/sdks/c/quickstart-gdk) |
| Unreal      | An Unreal Engine marketplace plugin designed for use with either C++ or blueprint.                                                                                                | [Unreal SDK Overview](/services/playfab/sdks/unreal)            |
| Unity       | Both an editor extension and stand-alone SDK for Unity3d.                                                                                                                         | [Unity SDK Overview](/services/playfab/sdks/unity3d)            |
| Legacy C++  | Our older cross-platform C++ SDK supports a simple REST-like interface with PlayFab across multiple platforms.                                                                    | [Legacy C++ Overview](/services/playfab/sdks/playfab-cpp)       |


## Related topics

- [PlayFab Services SDK](/services/playfab/sdks/c/index.md)
- [PlayFab integration for XBOX services titles](/services/xbox-services/playfab-integration.md)
- [PlayFab Services C API reference](/services/playfab/api-references/c/index.md)
- [Add backend services with PlayFab](/home/build-first-title/add-backend-services.md)
- [Legacy C++ PlayFab SDK](/services/playfab/sdks/playfab-cpp/index.md)