You can run turtle in Haskell X11.

Install this package by cabal.
And you can try this package by ghci.

% ghci
> :m Graphics.X11.Turtle
> f <- openField
> t <- newTurtle f
> shape t "turtle"
> shapesize t 2
> forward t 100
> left t 90
> circle t 100
> undo t
> home t
> clear t
etc ...