DayZ field wiki · Towns
Devil's Castle
A ruin with a view
Short answer
A landmark. Snipers like landmarks. So do stories.
Also: devils castle · castle
How it works
The castle is a pin on every map app. Pins attract third parties.
What to do
If you go, go for the view and the leave. Don't live there.
Don't
Don't stream the exact bush you sat in.