# Airship Components

Most game logic is run through AirshipBehaviours. It is our equivalent to [Unity's MonoBehaviour](https://docs.unity3d.com/Manual/class-MonoBehaviour.html).

AirshipBehaviours offer [useful lifecycle methods](/typescript/airshipbehaviour/lifecycles.md). They are attached to [Game Objects](https://docs.unity3d.com/Manual/class-GameObject.html). 

{% code fullWidth="false" %}

```typescript
export default class ExampleAirshipBehaviour extends AirshipBehaviour {
	public greeting = "Hello, World!";

	public Start(): void {
		print(this.greeting);
	}
}
```

{% endcode %}

After the file is compiled, it can be added to a Game Object through the **Add Airship Component** menu

<figure><img src="/files/AekzJJVvApkDr56TLpjS" alt=""><figcaption></figcaption></figure>

You should see your component added after selecting it:

<figure><img src="/files/amjHuVczYaSDO6yLS1qV" alt=""><figcaption></figcaption></figure>

When you run your game, this will print "Hello, World!"&#x20;


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