Welcome to the Guild wwgames! We've actually had one or two monthly challenges where the goal was to create a map for a board game. In fact, though last month's challenge involved a hex map, one contributor (who had one of the winning contributions) created a hex based board game which he hopes to make into a board game. I've also seen several others here who have done the same. So while it isn't exactly common, it's not rare either to find people here working on maps for a board game.