At the surface, society runs on transaction: who you know, who ignores you, who owes a debt unseen. Beneath the rich and poor, beneath the middle class, a harsher, more honorable economy thrives—a world of codes, contracts, and consequences.

You leave a bustling coffee shop in a city built on the working class, slip into the subway as commuters flood in and out, and drop down onto the tracks. Steps measured, hand finds the brick with a coin shaped hole, you pull out an underworld gold coin into it. A hiss, stone shifts, a hidden door opens. You cross the threshold.

Surface rules end here. The real world begins below.