Why it matters
It brought automail, alchemy, militarised science and early twentieth-century industrial mood to a large anime audience, becoming a key borderland route into steampunk-adjacent storytelling.
The 2003 Fullmetal Alchemist anime begins with two brothers discovering that forbidden knowledge has a return policy written in limbs, armour and lifelong guilt.
Directed by Seiji Mizushima and produced by Bones, the 2003 series adapts Hiromu Arakawa's manga but eventually develops its own continuity. Edward and Alphonse Elric's failed attempt at human transmutation leaves Edward with automail limbs and Alphonse's soul bound to armour. From there, the story becomes a quest through alchemy, state power, grief and consequences with unusually sharp teeth.
The steampunk connection is not a matter of steam engines alone. The series is built around alchemy, not mechanical invention. Yet its world is full of trains, military uniforms, prosthetic engineering, laboratories, state bureaucracy and technology that feels closer to early industrial modernity than to clean futurism. Automail is the obvious bridge: body and machine joined not as decoration, but as daily survival.
The 2003 anime also has a darker, stranger flavour than many viewers expected from shonen adventure. It treats equivalent exchange less as a clever magical rule than as a moral bruise. Science, alchemy and state service all carry a cost. That makes it useful beside steampunk because both modes often worry over the price of progress, especially when governments notice a new technique and immediately ask whether it explodes.
Its divergence from the manga is part of its identity. The later Brotherhood would follow Arakawa's completed story more closely, but the 2003 series has its own melancholy logic, ending in a way that leads directly into Conqueror of Shamballa. That film sharpens the diesel and interwar elements, while the television series provides the emotional machinery.
The show also helped train a generation of viewers to recognise machine-age fantasy outside the usual Victorian frame. Amestris is not London with goggles. It is a militarised alchemical state where bodies are modified, science is weaponised and the past keeps sending invoices.
Its audience appeal crosses several borders. Viewers who arrive for shonen action get battles, rivalries and quests. Viewers interested in darker speculative fantasy find a story about grief, state violence and the cost of trying to master nature. The automail and military design keep the series close enough to retro-industrial imagination that steampunk readers have plenty to examine, even when alchemy is doing the heavy lifting.
The 2003 version also deserves separate treatment because its mood is so distinct. It leans into tragedy, ambiguity and consequences in ways that make the later Brotherhood feel like a sibling rather than a replacement. Both belong near the same machinery, but they do not run at the same pressure.
The homunculi and philosopher's-stone material deepen that mood. They turn the quest away from a simple repair story and towards a question about what counts as a person, a body or a soul. Steampunk-adjacent works often worry about artificial life and engineered identity; this anime reaches similar anxieties by way of alchemy, grief and state secrecy.
It is also one of the best examples of how anime can make industrial melancholy popular without sanding off all the discomfort. The series has humour, action and broad emotional appeal, but it never lets the brothers forget that their adventure began with a violation. The machinery, magic and military plot all keep circling that wound.
Is it really steampunk?
Not strictly. The 2003 Fullmetal Alchemist anime is alchemical fantasy with diesel-steam adjacency. Its relevance comes from automail, industrial imagery, trains, military science, laboratories and the moral cost of knowledge.
It belongs close to steampunk because its machines are personal, political and painful. The boilers may be offstage, but the bodywork is right there, complaining every time it rains.
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