Steam. It is arguably the most-important product in the industrialized world. Sure, we don't use it as much as we used to, but still, anything that runs via nuclear power technically runs on steam. Being so important, it's no wonder that it has its own fan group: Steampunk. Stone Manor Games has made a deckbuilding steampunk game, called Steamcraft, and has put it up on Kickstarter.
In Steamcraft, players are the heads of giant corporations in the world of Cobalt. Besides steam, the most important item in the world is Brass (as a former trumpet player, I agree). Players are looking to collect the most Brass that they can. They do this by expanding their territory into Brass-rich areas, hiring competent employees, and battling against others who would be all-too happy to take that Brass for themselves.
The campaign's just about half-funded and still has 29 days left on the clock.