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# sessionMode

The mode the session uses to find other peers.

```
var sessionMode: GKSessionMode { get }
```

## Discussion

The session mode changes the behavior of the session when [`isAvailable`](/documentation/GameKit/GKSession/isAvailable) is set to <doc://com.apple.documentation/documentation/Swift/true>.

- A [`GKSessionMode.server`](/documentation/GameKit/GKSessionMode/server) session advertises itself to local devices using its session ID.
- A [`GKSessionMode.client`](/documentation/GameKit/GKSessionMode/client) session searches for local devices advertising the same session ID. As it discovers available and compatible peers, it calls the delegate’s  [`session(_:peer:didChange:)`](/documentation/GameKit/GKSessionDelegate/session(_:peer:didChange:)) method.
- A [`GKSessionMode.peer`](/documentation/GameKit/GKSessionMode/peer) session both advertises as a server and searches as a client.

## See Also

[`var isAvailable: Bool`](/documentation/GameKit/GKSession/isAvailable)

A Boolean value that determines whether or not the session wants to connect to new peers.


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