Iron Age is the 4th Civilization and the 4th Ancient Civilization generator obtained in the Primary Simulation, which can generate Ideas . In this age, humans began making tools and weapons from iron, and advanced in agriculture and art (including pottery and beadwork).
Design[]
The Iron Age icon shows two fighting men with short swords.
Description[]
"The ability to create tools and weapons made of iron—an abundant ore that's easily smelted—makes bronze obsolete. Elaborate craftsmanship, proto-urban societies, and nominally fortified cities begin to emerge."
Upgrades[]
Iron Age has 23 upgrades, increasing the generator efficiency with a total x1.89372e30 multiplier.
| Icon | Name | Description | Cost | Efficiency | Requires |
|---|---|---|---|---|---|
|
Military | A growing class of organized, professional warriors serves to defend their homeland and attack others. Advances in weaponry and martial arts allow military aristocracies to rise in power in Europe, Asia, and parts of Africa. | 12,830 | 10% | Iron Age |
|
Iron Tools | As with weapons, iron tools like sickles and plows spread to the working masses. To harden the malleable metal, blacksmiths cast it—they mix it into alloys such as steel—and then temper it in water. | 13,800 | 10% | Iron Age |
|
Government | Governments are systems organized to maintain a state—to make laws and run the affairs of a community, for example. They can take many forms, such as tyranny, monarchy, aristocracy (rule by elites), theocracy, and democracy. | 21,700 | 10% | Iron Age |
|
Government Mints | The first currencies emerged on an ad-hoc basis, but the minting of coins brings money systems under state control. Governments produce a dependable source of wealth that they can manipulate when required. | 24,150 | 25% | Government |
|
Algebra | Babylonians learn to solve math problems with an unknown number—the weight of a stone, for example. Egyptians add a second unknown, and algebra begins a long series of leaps toward becoming the base skill of all mathematics. | 24,700 | 50% | Alphabet 10 Iron Age |
|
Gunpowder | One of the earliest known chemical explosives, gunpowder is a mixture of sulfur, charcoal, and potassium nitrate (saltpetre). Saltpetre oxidizes and burns the two fuels, causing gas to rapidly expand and propel solids. | 29,520 | 10% | Iron Age |
|
Fire Arms | BOOM! Starting in 10th-century China, the invention of gunpowder will give rise to fireworks, blasting powder, and guns. Cast iron and brass firearms replace bamboo weapons that shoot bits of metal or arrows. | 29,800 | 10% | Gunpowder Crossbow |
|
Library | Royal, rich, and religious leaders have kept scholarly collections since the days of clay tablets. Romans set up some of the earliest public libraries, stocked with scrolls of knowledge and lore. But, how many people can read Latin? Or even read at all? | 91,500 | 20% | Alphabet Iron Age |
|
Concrete | Concrete starts with cement, a kiln-fired, limestone mix crushed into powder. Add water and aggregate (stony rubble), and let it cure. After the water is absorbed, concrete hardens into a molded, solid form. It will be the number one building material for two millennia. | 126,700 | 30% | Glass Iron Age |
|
Astronomy | Timekeeping, agriculture, and navigation are solid practical reasons to study the stars. But religion and mythology also drive astronomers, who seek to understand our place and Earth's place in the cosmos. | 126,700 | 40% | Iron Age Timekeeping |
|
Aqueduct | Towns grow into cities, creating a thirst for accessible water. Concrete bridges and clay or metal pipes are engineered to traverse ravines and mountains. By gravity alone, aqueducts transport water for miles. A Roman system will stay in use for 2,000 years. | 126,700 | 50% | Plumbing Concrete |
|
Magnifying Lens | Used to make small objects look large, or to focus light—the magnifying lens forms the basis for us to see further and better. | 145,000 | 33% | Glass Iron Age |
|
Sanitation | We have not yet discovered germs, but we begin to understand that unclean living conditions can make us sick. Keeping water free from waste is a first step toward reducing the spread of infectious diseases. Many other effective health and sanitation measures are centuries away. | 325,000 | 1,000% | Aqueduct Parthenon |
|
Crank | A handle turns a rotating shaft, easing laborious chores: spinning fibers and reeling the yarn, processing grain, bellowing a forge, raising buckets of well water, grinding stone. A hand-cranked drill can even bore a tidy hole in the skull for surgery. | 2e12 | 30% | 25 Iron Age Screw |
|
Crossbow | A bow mounted on a stable base is deadlier in range, power, and precision than a handheld bow and arrow. A trigger holds the bowstring in extreme tension and then releases it, propelling a bolt at a snappy speed. Crossbows alter warfare tactics and armor. | 3e14 | 100% | 50 Iron Age Crank |
|
Catapult | Like an oversized crossbow, this siege weapon ramps up the tension and then lets ballistics fly—stones, bolts, or arrows. In Greece and Rome, catapults and siege towers tip the advantage from high fortress defenders to the attackers below. | 1.2e15 | 200% | 100 Iron Age Crank |
|
Parthenon | A treasure and a treasury, the ornate centerpiece of the great Acropolis is also a tribute to Athena, namesake of Athens. The Greeks take marble sculpture to new heights, with detailed battle scenes and stone goddesses draped in seemingly transparent robes. | 8e16 | 1,200,000% | Iron Age 1e7 Parthenon glitch |
|
Astronomical Calendar | Charting the cyclical dance of worlds beyond Earth reaches a new height in Greece. The Antikythera, a hand-cranked machine with 30 gears, can pinpoint stars and planets, predict eclipses and phases, track solar and lunar calendar dates, and more. | 4e22 | 1,500% | Timekeeping Astronomy Parthenon |
|
Iron Sword | Iron bends more easily than bronze, but its abundance and ease of forging puts swords in the hands of the masses. Large armies stage military campaigns across vast territories. The political make-up of continents undergoes rapid changes. | 9e24 | 2,500% | Military Parthenon |
|
Great Library | What if we collect all the world's knowledge in one place? A copy of everything written? This quest gives rise to the Library of Alexandria, Egypt, with half a million papyrus scrolls, all handscribed. Sadly, not a shred, not even a building stone, will endure. | 1.2e26 | 6,000,000% | Library 50 Great Library Artifact in Augmentations Console |
|
Nazca Lines | In Peru, Nazca artists draw 300 giant figures, animals, plants, and symbols in the desert. It's easy! Just drag a tool to remove rust-colored sand and expose paler grains below. About 1,300 kilometers of lines in the sand form the collection, best viewed from above. | 2e27 | 1e7% | Iron Age Cartography 50 Nazca Lines Artifact in Augmentations Console |
|
Great Wall | Over a period of 2,000 years, from the Qin state to the Ming Dynasty, a barrier rises and will eventually stretch thousands of miles along China's north border. Studded with lookout towers and bastions, one Great Wall unites diverse groups in defense. | 4.2e28 | 8e7% | Military 50 Great Wall Artifact in Augmentations Console |
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Colossus of Rhodes | Towering high over Rhodes, a busy Greek port, the bronze sun god Helios stands for victory and free trade. Despite his powerful stature, the wealthy island suffers repeated attacks. At just 57 years old, Helios tumbles in an earthquake and vanishes with time. | 8e28 | 7,000,000% | Nail 75 Colossus of Rhodes Artifact in Augmentations Console |



























