How to create integer slider pes style like in this picture
I want the values to change when you press left arrow(value -1) and right arrow(value +1).
Also I want to somehow save this values and use them later in game.
Unity has a built in slider (http://unity3d.com/support/documentation/ScriptReference/GUI.HorizontalSlider.html). For the arrows, I would suggest adding a piece of code that checks which of the sliders is active, and then on input add or subtract 1 from the associated integer.
Saving can be done in simple .txt files, but I’m not familiar with saving/loading in Unity.