Where in the world is Serious Samdiego? I think a fair number of people would like to know, especially in light of the fact that series creator Croteam announced it was funding Serious Sam 4 with a Humble Bundle. But then it just disappeared. So what gives? Did the beloved throwback shooter have a stumble (bundle)? Evidently not, as Croteam is now claiming that Serious Sam 4 will be out by the end of 2014.