I'm working on a personal project called Evergrim. Its similar to a choose your own adventure meets DND except with tons of art and a story that grows.
At the beginning of each month I send out a chapter of the story and a location map. Each will have story clues and interesting places and people to meet The community discuss the clues and make decisions on where they want to send the character.
At the end of the month I send out illustrations and concepts that show them how well their decisions turned out and also move the story along.
Its a fun fantasy community game.