As an aspiring game designer I want to try and make some of my ideas come to life on something other than paper. But I can't find a good game engine to help me. I tried looking for a free and good engine to use but I got nothing. I'm really trying to get the Half Life 2 engine, but I have no idea how to (I downloaded the entire Orange Box w/ a torrent but I found nothing in it). Can someone please help me?