Blame!, Vol. 1 by Tsutomu Nihei

In a sprawling, nightmarish megastructure, a taciturn wanderer searches for the elusive Net Terminal Gene that could reconnect humanity to a lost network. His trek through endless corridors brings brutal encounters with rogue cyborgs, silicon life, and automated guardians, offering only fractured glimpses of a civilization buried beneath layers of machinery. Stark, minimalist storytelling and oppressive architecture frame a solitary, violent quest that descends ever deeper into the unknown.

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