10 Memorable Halloween Party Games for Adults 1. Monster Mash. 2. Don’t Say Halloween. 3. Murder Mystery. 4. Themed Scavenger Hunt. 5. Scary Treasure Hunt. 6. Horror Movie Trivia. 7. Guess the Villain. 8. Magic Potions. 9. Trick or Treat. 10. Scary Photo Booth. Oct 28, 2018 · There's no denying Halloween was meant for parties. From the costumes and candy to the thrills, chills, and squeals, this ghostly holiday is the perfect excuse Halloween Games For Adults Home Country: US.