Halloween is upon us once again, despite the ever present cloud of COVID-19. Our family loves this time of year and the limitations have made things a bit tough. Thankfully, our D&D group has made those challenges more bearable. This year, I am prepping to run the newly published 5e adventure, "Icewind Dale: Rime of the Frostmaiden" and I have experimented quite a bit in my weekly one-shot games to develop how to run a darker, more suspenseful, horror-based campaign. Horror and frightening themes can add a new dimension to your gaming sessions if you are able to do it right. Of course, when done badly, it can create an equally bland and lackluster experience for your players. Here are some of my thoughts and lessons learned from my own diabolical gaming moments as I have run some scary practice adventures.