The world before it ended was extremely high-tech, and remnants of this do exist in places, despite the general lack of technology. Both individual artifacts and more rarely the capability to use or create them societally do persist, to some extent. Mutants, both humanoid and not, exist, and can found as both a part of some societies, or among the greatest threats faced by other societies. Firearms are present but **extremely** rare, only the wealthiest have access.