Going Once, Cut Twice

Your beach vacation goes awry when a stranger curses you, breaking your body and turning it into something unreal: A siren. Plunged into the deep sea, you fall into the hands of The Gilded Gill, an auction house run by mermaids. They specialize in luxury goods, such as ringed eyes and iridescent scales... cut from creatures like you. You have one day before the final bid seals your fate. Will you escape the clutches of the head auctioneer, adamant on keeping you for his closing show? Or will you fight back for another chance to see the sun? [From itch.io]