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

# PlayFabMultiplayer.Initialize

> PlayFabMultiplayer.Initialize

Initializes an instance of the PlayFab Multiplayer library.

```csharp theme={null}
public static void Initialize()
```

## Remarks

Initialize() cannot be called again without a subsequent [`Uninitialize`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/Uninitialize) call.

Every call to Initialize() should have a corresponding Uninitialize() call.

The playFabTitleId is read from PlayFab's static PlayFabSettings asset. It can be changed Using Unity menu, PlayFab | MakePlayFabSharedSettings menu. It must be the same PlayFab Title ID used to acquire the PlayFab Entity Keys and Entity Tokens that will be passed to [`SetEntityToken`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/SetEntityToken).

## See Also

* method [Uninitialize](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/Uninitialize.md)
* class [PlayFabMultiplayer](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/overview.md)
* namespace [PlayFab.Multiplayer](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference.md)


## Related topics

- [PlayFabMultiplayer.IsInitialized](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/IsInitialized.md)
- [PlayFabMultiplayer.Uninitialize](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/Uninitialize.md)
- [PlayFabMultiplayer.SetEntityToken](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/SetEntityToken.md)
- [PlayFabMultiplayer.JoinArrangedLobby](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/JoinArrangedLobby.md)
- [Moving from MPSD to PlayFab Multiplayer and MPA](https://docs.xbox.com/services/xbox-services/multiplayer/mpsd/concepts/live-mpsd-to-mlp.md)