Havana is a Subtle Clue of the fan fiction variety.
It's also a tribute to Puerto Rico. And why not? The whole of my social life currently consists of playing it with my fellow UBC Wargamer old farts on Friday nights. It's fun, and since for some reason we play out in public on the very nice tables in the South Plaza lounge outside the Student Union Building cafeteria, I get field experience with The Young Folks Today, in the form of undergraduates on their way to and from the Pit pub.
(They're pretty cool, I think. We don't even get old-fashioned suggestions that we need to get a life because we're all nerds now. Cool. Cool cool cool.)