# Sandbox.Application.FrameCount

```csharp
static ulong FrameCount { get; set; }
```

Number of engine frames since startup. Increments once at the start of every frame.
Starts at 1, so a default frame stamp of 0 always reads as a frame that has passed.

Declared in [Sandbox.Application](/api/Sandbox.Application).
Assembly: `Sandbox.Engine`.