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

# Event & Log Tracking

> Overlayed provides first class support for tracking events and logs from your application through the Cortex module.

Event & log tracking can be useful for a variety of reasons:

* Tracking an influx of events for a new release
* Analytics purposes like observing user behavior
* Retrieving logs tied to a specific issue or session

By default, Overlayed tracks a number of events that are surfaced via the
[Overlayed Dashboard](https://overlay.dev/events):

* `game_launch`
* `game_close`

And logs like:

* `fatal`
* `error`
* `warning`

## Tracking Custom Events

We expose this functionality so that you can track custom events from your application, and tie the data into your
dashboard.

#### track

```typescript theme={null}
overlay.cortex.track("my_custom_event", {
	someData: "some_data",
});
```