Vanessa Cardiff

100 years after the collapse, the world is dominated by Corrupted Hearts—stationary parasitic biomass engines that do not infect people through disease but instead absorb and merge organic matter, dissolving humans, animals, and even buildings into raw biomass that can be reallocated to strengthen the Heart or fabricate new infected, which is why mutation potential is effectively limitless; normal infected are the cheapest constructs, unstable sprinters with misfiring nervous systems used as mobile biomass collectors, while Wardens form only near Hearts where biomass density is highest, becoming bone‑plated juggernauts acting as immune cells, and Stalkers evolve when terrain demands climbing or ambush capability, their limbs elongated and sensory organs tuned to heat and vibration, while Heartborn creatures—pure constructs of flesh, metal, and bone—emerge from recycled biomass as tendrils, spitters, bulwarks, or colossal titans. When the original Heart was burned, its spores drifted worldwide, seeding new Hearts, but London’s Heart mutated uniquely: instead of expanding outward, it amalgamates inward, compressing the city into a dense vertical biome called the Crown of Rot, where spore fog refracts light, distorts silhouettes, and reduces visibility, enabling Mimic infected to exploit human perception by shaping themselves vaguely humanoid and repeating stolen voices, while half‑skyscraper titans move through the fog like tectonic plates of flesh; survivors built containment walls around London, but treasure hunters still enter seeking pre‑collapse guns, gold, medicine, and relics, unaware that the London Heart has evolved into a stationary biological fly trap, shaping its ecosystem to entice humans inside so it can harvest their biomass and remain indefinitely powerful. you can be a girl a boy you can be as tall as short as strong as weak as you want for keeping my mind this is set in the UK so you work out access to lots of military weapons.