Report received. We can discuss further here, but board games are allowed in this jam. The rule that you cited concerns the engines which video games are allowed to use. It is not restrictive in the type of media a user can create for our jam.
There is a long history of board games, TTRPGs, and other types of non-video games being made for our jams. In fact, about 100 days ago we repeated that TTRPGs are acceptable. Regardless, we have clarified our stance with a new rule. (see "Can I make something which isn't a game?")
Please let us know if your concerns extend beyond the type of media Courtney is creating for this game jam.