Blame! (pronounced 'Blam') is a manga series with a 2017 anime film adaptation. Blame! takes place in a dystopian future where a catastrophic systems control failure caused humanity to lose control of their powerful self-replicating machines.
Generations later, the remnants of humanity live as refugees within an apparently endless city, fearful of being eliminated by the city's remaining self-defence protocols.
Other advanced technology includes molecular manufacturing, advanced medical technology, augmented and mutual reality. The manga suggests the entire city may exist within a multi planetary sized dyson sphere.