The goal of Mad Barrington's Gyre is to accumulate the shares worth the most bottle caps by the end of the game. "Why bottle caps?" Because in the post nuclear future of flying castles, giant robber baron cockroaches and mutated broccoli… bottle caps are the coin of the realm. "Okay, bottle caps got it." Yep, it's a three headed dog eat three headed dog world out there and Daddy needs a new pair of radioactive sludge proof shoes for baby so it's time to hit the Stock Market and bring home some bottle caps!