The question is why all the occult imagery. I took a brief look at the game's website and saw just HOW oriented to the occult it is. Surely a good game of adventurous complexities for the geekery gang could do without the sorcery.
You raise an interesting question though one that needs clarification for me. What is "occult imagery"?
I personally think the imagery is broader than that but I will address the question that I find there and that is why are dragons, witches, demons, vampires, on and on of such dramatic interest to us? Tolkien uses "occult imagery" I believe. When I was younger I read a lot of science fiction and fantasy. My first answer is that "occult imagery" if I understand what you mean by that is very useful for story telling. I don't believe that demons, dragons, goblins, sorcery, etc. exists yet I can enjoy images, stories, movies that feature them.
Since I'm not a literalist I will say it's because of what they can signify or psychologically capture and figure. I don't believe that demons can explain Adolf Hitler, but in writing about Adolf Hitler using demonic metaphors can help communicate the evil and menace of the man. Stories require protagonists and antagonists and these are to some extent culturally determined. "occult imagery" is part of our cultural heritage.
I'm wondering if Macbeth would has as much impact without the witches even though they have few lines. I've no problem with the Bible as literature or the occult as literature and some literature is better than others. I don't take it literally though. Taking it literally is what mystifies me.
lfen