First Church of Mecha

""These fools worship Transformers!""

- Astrotrain, The Transformers, "The God Gambit"

Humongous Mecha are awesome, in a very literal sense. They typically have more armor than a battleship, possess enough firepower to lay waste to cities, and tower over the battlefield like gods of war. When this awe leads to worship, you end up with the First Church of Mecha, in which these war machines are hailed as gods, or even praised as a deity in a full-blown religion. In some settings, these giant fighting robots may actually be gods.

May involve a Cargo Cult or God Guise.

See also Machine Worship, Deus Est Machina and Thank the Maker.

Anime and Manga

 * The Evas of Neon Genesis Evangelion are said at points to be a substitute for God, whatever that actually means.
 * It means a Giant Robot that embodies the lost mother in the Children who are also the Pilots. Its basically the Giant Robot Replacement for a Oedipus Rex God. Literally.
 * Also it's stated that the Angels possess the Body of God, while humans possess the Mind of God. EVAs can potentially.
 * While we're on the subject of Gainax, there's a village in Tengen Toppa Gurren Lagann run by a Corrupt Church that worships an old Gunmen.
 * Making it even better, Chouginga Gurren Lagann, the penultimate mecha of the series, was explicitly described as "one who matches the Gods," as having power tantamount to a sub-Universe all its own, and is capable of near-divine manipulation of space-time. It also looks like a drill angel.
 * There are people who list their religious views as "Gurren Lagann" (Or Kaminalogy).
 * Rah Xephon was referred to this at some points. The Rah Xephon was this at some points.
 * Not sure of the other versions, but at least one of the Vision of Escaflowne manga versions called the Escaflowne a god.
 * Go Lion is thought of as one, even if not so in western equivalent Voltron.
 * He tried to prove it too. It didn't go so well.
 * The "White Doll" from Turn a Gundam is sort of worshiped as one. Granted, this was before they knew it was a mobile suit, and not just a statue.
 * In Gravion, Sandman calls his Humongous Mecha "a new deity for the modern age". As if that wasn't enough, its name is God Gravion. However, it's replaced by Sol Gravion, and Sandman's God Sigma Gravion becomes a sort of Sixth Ranger.
 * The Ma-Shin, aka "Rune Gods" of Magic Knight Rayearth.
 * Setsuna F. Seiei of Gundam 00 views Gundams with almost religious reverence because when he was very young, his life was saved by a Gundam. Naturally, the Gundam he eventually pilots is so powerful, it's not even a Gundam anymore but essentially a Super Robot.
 * Scrapped Princess gives an example: The common people worship a woman who sided with humanity's enemies 5000 years ago as God, and believe the Peacemakers (AI-controlled Humongous Mecha that can brainwash you by looking at you) are angels. They also believe the Dragoons are demons. So the Humongous Mecha are on either side of the religion.
 * Played with in Gasaraki. The TA/Fake mechas are ugly, purely mechanical looking and sounding, and while they're excellent weapons they're also get clogged by sand and are useless in certain situations, so they're as far from the Awesome Humongous Mecha as you can get. The Kugai on the other hand are referred to as Gods (or Demons, depending on who you ask), and compared to the TAs they're incredibly smooth, much more powerful, and scary.
 * Tenchi Muyo GXP (Episode 24+ spoilers):
 * Gao Gai Gar is known as the God of Destruction
 * In K.O Century Beast each village that has a guardian statue which in fact houses a robot dubbed Jinns.
 * In Kannazuki no Miko, the Humongous Mecha are actually gods of Japanese Mythology. One of them is piloted by a nun.
 * The Big O goes so far as to call giant robots Megadei, literally “mighty gods.” Then of course there's their boot up sequence: Cast in the name of God, ye not guilty.
 * Mazinger Z, when it was first introduced, was claimed by Professor Kabuto to be a machine that could be God or Devil. When Mazinkaiser appeared, at least in the anime, the same man proclaimed that Kaiser surpassed God and Devil. Heck, even its Super Robot Wars theme song proudly proclaims "Is it a God? Or a Devil?" (Kami ka? Akuma ka?)
 * And the Shin Mazinger Zero manga implies Mazinger Z if its power is not harnessed for the good.
 * In UFO Robo Grendizer, the titular Humongous Mecha was the robotic embodiment of the god of war of planet Fleed.
 * Reideen was the protector deity of Lost Continent of Mu. It was foretold when the Age of Demons began, Reideen would awake and would battle them to protect the world. Needless to say, it happened.
 * Tetsujin 28-go is actually mistaken for a god in one episode of the 1980 remake.
 * Tetsujin 28-go is actually mistaken for a god in one episode of the 1980 remake.

Comic Books

 * A fantasy example: In Cerebus the Aardvark, a wizard transferred his soul into a giant Golem and declared himself the god Tarim.

Literature

 * Perdido Street Station features a very creepy Deus Est Machina worshipped by a scattered but highly organised cult. It uses  to communicate with people. Dark Is Not Evil

Live Action Television

 * More than one Super Sentai series has portrayed their mecha as gods. Hyakujuu Sentai Gaoranger has the literal Gao God, while the Kyoryu Sentai Zyuranger mecha combine into God and face off against the Devil. Naturally, Power Rangers plays this down to the point of non-existence.
 * Save for Power Rangers Wild Force, whose version of Gao God (named Animus), according to Linkara is what happens if GoseiKnight was a Megazord as opposed to a zord, and didn't have the Goseiger to tell him not to go after humans for polluting the ecosystem. They never actually used the G-word, but he filled the same function as in Sentai.

Tabletop Games

 * As the page quote used to indicate, the Titans of Warhammer 40000 are acknowledged as god-machines even outside of the technology-worshipping Adeptus Mechanicus.
 * To complicate the matter, some have literal churches built on them.
 * Some have churches and shrines built for them.
 * The D&D setting Eberron has the warforged, a race of living and intelligent war golems. Now that the war is over and they are no longer needed, many of them started to create their own society in the middle of a toxic desert. This includes their very own religion, which revolves around building their own mecha god. And as the entire setting is completely under the Rule of Cool, they will probably be successful.
 * Exalted has Autochthon, the Great Maker, one of the Primordials who created the setting's universe, and the one most focused on craftsmanship, artifice, and generally making stuff. He's also called the Machine-God, and he lives up to the name, with one of his bodies being an entire world of cogs, gears, pistons, wires, steam-filled pipes, and crystalline memory banks.

Video Games

 * The so called "gods" of the Cuotl from Rise of Legends sure look like mecha. It is unknown whether they are actually aliens, alien robots, or aliens inside robots(which would actually make them mecha).
 * The Reapers from Mass Effect count to a degree. They have nothing but loathing for those being that worship them, but have no qualms about using their devotion.

Western Animation

 * Primus and Unicron of Transformers are the Gods of Creation and Destruction respectively, with Primus being the progenitor of the Cybertron race (as well as Cybertron itself in some continuities). They are also both huge transforming robots themselves.
 * There's also the episode "The God Gambit" from Generation 1 - the people of Titan worship a massive statue as a god, but this turns out to be a scam run by the priesthood. When the Autobots and Decepticons arrive on the moon, Astrotrain sets himself up as a more powerful deity.
 * At the end of Beast Wars,
 * Also, Brian Clevinger once related in an Eight Bit Theater newspost that he didn't really "get" why religious people got so hung up about that Jesus guy, until he asked himself "What if Jesus is their Optimus Prime?"

Other

 * The Book of Revelation mentions the False Prophet constructing a talking statue of The Antichrist. Some theologians have hypothesized that it's a giant robot (or at least animatronic).
 * When religious conflict on a planet of anthropomorphic foxes breaks out into open war in the 'furry' story "The Last Aspect", the 'orthodox' side decides to build a gigantic, intelligent war machine in vulpine form to both act as a symbol of their faith and directly oppose the 'heretics' in combat. The project takes years to complete and its AI spends quite some of that time communicating with its designer and learning about the world...and when the machine finally goes live, it proceeds to curb-stomp both sides, force them to put an end to the fighting, and declare itself the new supreme deity by virtue of being the obvious physical embodiment of the one concept both sides were equally dedicated to despite their notional religious differences -- War.