Embark on a perilous quest across three cities, each harboring a key item needed to unlock the final gate. In the City of Shadows, navigate dark ruins and survive zombie hordes. In the City of Steel, outsmart futuristic defenses to retrieve a hidden artifact. In the City of Sands, overcome deadly traps in an ancient temple. Survive the zombie-infested open world between cities and unlock the final gate to complete your journey.