I tried a treasure hunt game for the Very First Steemit Foraging Community Scavenger Hunt. All three of the posts about the hunt did well, with a lot of upvotes and comments, but no one - no one - actually played the game. I will keep trying, though! I want to use games to help people actually become good foragers of wild plants and mushrooms in real life. The scavenger hunt tried to get people to look at active Steemit content and leave comments. If you have any ideas, I'm all ears!
I think @Papa-pepper has been able to get people to do a wide variety of things for his contests. Some connect with past content, others ask people to do things in real life.