---
title: identifier
framework: gamekit
role: symbol
role_heading: Instance Property
path: gamekit/gkgameactivitydefinition/identifier
---

# identifier

The developer defined identifier for a given game activity.

## Declaration

```swift
var identifier: String { get }
```

## See Also

### Getting the identifier properties

- [groupIdentifier](gamekit/gkgameactivitydefinition/groupidentifier.md)