method calls doubling everytime

this demonstrates a 2^x call to the function redGame() where x = ordinal count of click first click gives one alert 2^0 second gives two alerts 2^1 third gives four alerts 2^3

HTML

<div id="button-again"></div>

CSS

#button-again {
    cursor: pointer;
    width: 150px;
    height: 75px;
    background-color: #fb6800;
}

JavaScript

$(function(){

redGame();

function redGame()
{
//    $('#button-again').click(function(){ 
        alert("called");  
        redGame();
  //  });

}
        
});