Any experience with making a board game?

My friend and I embarked upon a journey over the past few months to create a tabletop board game. The interesting part is that we were motivated by the emergence of generative AI and the capabilities it had in rapid prototyping concepts. On a whim we said, let's see how far we can push making a board game. We pushed Midjourney, ChatGPT, and a variety of creative tools to help build the foundation for our game. We both have design chops and are into diy, creative design, and 3d printing, and technology to help get this thing past the finish line.

We are now at the point were after many iterative sessions, we have a functional and fun to play game! Our intention is to give it away as a free downloadable that folks can 3d print and paper print all the parts so they can play too! Huzzah! We are balancing the rules and creating the instructions which is not something we are relying on AI aside sticking to the theme. We are in search of inspirato on what makes gameplay fun for folks today.

Question What are the most fun, exciting, or challenging aspects of any tabletop or board games you play? What keeps you engaged?

EDIT
I didn't give many specifics on the game itself, and figured it might help. Remember we used AI to come up with this storyline. The prompt was to write a story for a "Sci-fi Christmas Horror" board game...

The basic premise is that you are attending a party at the North pole celebrating the research of Dr. Frost on ancient Christmas magic. Predictably things go bad, and you have to find your way out before it's too late and you are killed by a troop of Christmas themed monsters.

The games objective is to work together to escape the facility by collecting sleigh parts, fighting monsters, navigating a maze in dark hallways, and visiting special rooms to solve puzzles. It's all kinds of ridiculous but fun it its own way.