Koidans

Koidans are a fictional species that appear in the video game "Nier: Automata." They are mechanical beings that are often depicted as being in a state of disrepair or decay. Koidans are characterized by their metallic bodies, which are often rusted and damaged, and their glowing eyes, which emit a faint blue light. They are typically found in abandoned or ruined areas of the game's world, such as derelict factories and overgrown cities.

The origins of Koidans are not fully explained in "Nier: Automata," but it is implied that they were once part of a larger network of machines that served humanity. However, after humanity's extinction, the Koidans were left to wander the desolate world, their original purpose lost. Some Koidans appear to retain remnants of their former programming, exhibiting behaviors that suggest a longing for their past or a desire to protect certain areas.

In the game, Koidans serve as common enemies that the player character, 2B, must fight. They come in various forms, including smaller, more agile units and larger, more powerful variants. Their combat abilities vary, but they generally rely on physical attacks and projectile weapons. Despite their often dilapidated appearance, Koidans can be formidable opponents, especially when encountered in groups. The lore of "Nier: Automata" suggests that the Koidans, like many other machine lifeforms, have developed a unique form of consciousness and self-awareness over time, leading to complex interactions and even internal conflicts within their mechanical society.