Show
| Project | Cost | Requirements | Effects |
|---|---|---|---|
 Archive I |  40  20 |  Metaphysics Weak Culture | 1  On completion: 10 |
 Archive II | 60 40 | Archive I Developing Culture | 2 On completion: 20 |
 Archive III | 80 60 | Archive II Strong Culture | 4 On completion: 30 |
 Archive IV | 100 80 | Archive III Legendary Culture | 1  8 On completion: 40 |
 Camel Supply | 20 | Riders family city | Provides Camel to this City |
 Chera Coalition Nation | 60 | Wootz Steel Game option: Characters | 1  /Rural Specialist Provides: Elephant Chera Coalition Nation On completion: Grants supremacy to the Chera family |
| Chera Coalition Nation | 60 | Game option: Characters | 1 /Rural Specialist Provides: Elephant Chera Coalition Nation On completion: Remove Chola Supremacy On completion: Grants supremacy to the Chera family |
| Chera Coalition Nation | 60 | Game option: Characters | 1 /Rural Specialist Provides: Elephant Chera Coalition Nation On completion: Remove Pandya Supremacy On completion: Grants supremacy to the Chera family |
| Chola Coalition Nation | 60 | Wootz Steel Game option: Characters | 1  / +20% Strength in own territory On completion: Grants supremacy to the Chola family |
| Chola Coalition Nation | 60 | Game option: Characters | 1 / +20% Strength in own territory On completion: Remove Chera Supremacy On completion: Grants supremacy to the Chola family |
| Chola Coalition Nation | 60 | Game option: Characters | 1 / +20% Strength in own territory On completion: Remove Pandya Supremacy On completion: Grants supremacy to the Chola family |
 Convoy I | 40 | Weak Culture Trade League law | On completion: 100  On completion: 40 in this City |
 Convoy II | 60 | Developing Culture Trade League law | On completion: 200 On completion: 60 in this City |
 Convoy III | 80 | Strong Culture Trade League law | On completion: 300 On completion: 80 in this City |
 Convoy IV | 100 | Legendary Culture Trade League law | On completion: 400 On completion: 100 in this City |
 Council I | — | Weak Culture | +40% while in production +40% while in production +40% while in production |
 Council II | — | Developing Culture | +60% while in production +60% while in production +60% while in production |
 Council III | — | Strong Culture | +80% while in production +80% while in production +80% while in production |
 Council IV | — | Legendary Culture | +100% while in production +100% while in production +100% while in production |
 Decree I | 40 | Weak Culture Statesmen family seat Constitution law (Capital) | On completion: 3 |
 Decree II | 60 | Developing Culture Statesmen family seat Constitution law (Capital) | On completion: 6 |
 Decree III | 80 | Strong Culture Statesmen family seat Constitution law (Capital) | On completion: 9 |
 Decree IV | 100 | Legendary Culture Statesmen family seat Constitution law (Capital) | On completion: 12 |
 Elephant Supply | 20 | Riders family city | Provides Elephant to this City |
 Enrollment Post | 30 | Third Founder Leader | -25% Warrior Production Time -25% Warrior cost |
 Festival I | 40 | Weak Culture | On completion: 20  in this City On completion: 20 in this City |
 Festival II | 60 | Developing Culture | On completion: 40 in this City On completion: 40 in this City |
 Festival III | 80 | Strong Culture | On completion: 60 in this City On completion: 60 in this City |
 Festival IV | 100 | Legendary Culture | On completion: 80 in this City On completion: 80 in this City |
 Forum I | 40 20 |  Rhetoric Weak Culture | 1 On completion: 20 |
 Forum II | 60 40 | Forum I Developing Culture | 2 On completion: 40 |
 Forum III | 80 60 | Forum II Strong Culture | 4 On completion: 60 |
 Forum IV | 100 80 | Forum III Legendary Culture | 8 1 On completion: 80 |
 Found Buddhism | 60 | Developing Culture Maurya | On completion: Found Religion: Buddhism On completion: Founds Buddhism here |
| Found Religion | 80 | Shapur dynasty | On completion: Found a World Religion On completion: Founds the next available World Religion here |
 Horse Supply | 20 | Riders family city | Provides Horse to this City |
 Hunt I | 40 | Weak Culture Hunters family seat | On completion: 100  |
 Hunt II | 60 | Developing Culture Hunters family seat | On completion: 200 |
 Hunt III | 80 | Strong Culture Hunters family seat | On completion: 300 |
 Hunt IV | 100 | Legendary Culture Hunters family seat | On completion: 400 |
 Inquiry I | 80 | Weak Culture Scholar Governor | On completion: 40 |
 Inquiry II | 120 | Developing Culture Scholar Governor | On completion: 80 |
 Inquiry III | 160 | Strong Culture Scholar Governor | On completion: 120 |
 Inquiry IV | 200 | Legendary Culture Scholar Governor | On completion: 160 |
 Mint Coin I | 40 | Weak Culture Mint Coin (Capital) | 1 /Pop 5  |
| Mint Coin I | 40 | Weak Culture Coin Minter Leader (Capital) | 1 /Pop 5 |
 Mint Coin II | 60 | Mint Coin I Developing Culture Mint Coin (Capital) | 2 /Pop 10 |
| Mint Coin II | 60 | Mint Coin I Developing Culture Coin Minter Leader (Capital) | 2 /Pop 10 |
 Mint Coin III | 80 | Mint Coin II Strong Culture Mint Coin (Capital) | 3 /Pop 20 |
| Mint Coin III | 80 | Mint Coin II Strong Culture Coin Minter Leader (Capital) | 3 /Pop 20 |
 Mint Coin IV | 100 | Mint Coin III Legendary Culture Mint Coin (Capital) | 4 /Pop 40 |
| Mint Coin IV | 100 | Mint Coin III Legendary Culture Coin Minter Leader (Capital) | 4 /Pop 40 |
 Moat | 80 60 |  Portcullis Walls | +10 City HP 1 Yield Rate Defending / |
 Olympiad I | 40 | Weak Culture Greece | On completion: 50 |
 Olympiad II | 60 | Developing Culture Greece | On completion: 100 |
 Olympiad III | 80 | Strong Culture Greece | On completion: 150 |
 Olympiad IV | 100 | Legendary Culture Greece | On completion: 200 |
 Opulence | 100 500 | Developing Culture Luxurious Estates | 20  +1 Victory Points On completion: Memory: Lifestyles of lavish opulence |
| Pandya Coalition Nation | 60 | Wootz Steel Game option: Characters | 1 /Shrine Pandya Coalition Nation Unlocks Sangam  On completion: Grants supremacy to the Pandya family |
| Pandya Coalition Nation | 60 | Game option: Characters | 1 /Shrine Pandya Coalition Nation Unlocks Sangam On completion: Remove Chera Supremacy On completion: Grants supremacy to the Pandya family |
| Pandya Coalition Nation | 60 | Game option: Characters | 1 /Shrine Pandya Coalition Nation Unlocks Sangam On completion: Remove Chola Supremacy On completion: Grants supremacy to the Pandya family |
 Repair Damage | — | Damaged city | On completion: 1 HP City On completion: 10% HP City Percent On completion: 10% City HP |
 Sangam Literature I | 100 | Weak Culture Sangam Literature (Capital) | On completion: [All Cities] On completion: 60  in every City |
 Sangam Literature II | 200 | Sangam Literature I Developing Culture Sangam Literature (Capital) | On completion: [All Cities] On completion: 80 in every City |
 Sangam Literature III | 300 | Sangam Literature II Strong Culture Sangam Literature (Capital) | On completion: [All Cities] On completion: 120 in every City |
 Sangam Literature IV | 400 | Sangam Literature III Legendary Culture Sangam Literature (Capital) | On completion: [All Cities] On completion: 160 in every City |
| Suppress Buddhism Dissent | 100 | Buddhism dissent in city Governor | On completion: 60  in this City On completion: Remove Buddhist Dissent |
| Suppress Christianity Dissent | 100 | Christianity dissent in city Governor | On completion: 60 in this City On completion: Remove Christian Dissent |
| Suppress Hinduism Dissent | 100 | Hinduism dissent in city Governor | On completion: 60 in this City On completion: Remove Hindu Dissent |
| Suppress Judaism Dissent | 100 | Judaism dissent in city Governor | On completion: 60 in this City On completion: Remove Jewish Dissent |
| Suppress Manichaeism Dissent | 100 | Manichaeism dissent in city Governor | On completion: 60 in this City On completion: Remove Manichaean Dissent |
| Suppress Zoroastrianism Dissent | 100 | Zoroastrianism dissent in city Governor | On completion: 60 in this City On completion: Remove Zoroastrian Dissent |
| Syncretism | 60 | Puduhepa Leader Leader | 0.5 +10 Religion Opinion / Hittite Paganism |
 Towers | 100 80 |  Martial Code Moat | +10 City HP 1 Yield Rate Defending / +1 Range Change |
| Treasury I | 40 20 |  Administration Weak Culture | 10 On completion: 100 |
| Treasury II | 60 40 | Treasury I Developing Culture | 20 On completion: 200 |
| Treasury III | 80 60 | Treasury II Strong Culture | 40 On completion: 300 |
| Treasury IV | 100 80 | Treasury III Legendary Culture | 1 80 On completion: 400 |
 Vedic Rituals | — | Ritualistic Leader | +100% while in production |
 Walls | 60 40 |  Polis | +10 City HP 1 Yield Rate Defending / |
| Adjusted Weights and Measures | — | — | -10% +10% |
| Annual Feast for Persian Guests | — | — | -10 2 |
| Anti-Mounted Tactics | — | — | -10% Units gain Horsebane |
| Artist Marks | — | — | 2 |
| Athletic Tradition: Archery | — | — | +50 Unit Trait XP / Ranged +50 XP for Ranged units built here |
| Athletic Tradition: Equestrian | — | — | +50 Unit Trait XP / Mounted +50 XP for Mounted units built here |
| Athletic Tradition: Wrestling | — | — | +50 Unit Trait XP / Infantry +50 XP for Infantry units built here |
 Austerity | — | — | -50% +50% +25% |
| Autonomous Rule | — | — | 1 /Pop 2 /Pop Cannot Choose Production Cannot Build Units Cannot Hurry |
| Avesta Treasury | — | — | 2 +10% +10% |
| Beacon of Hope | — | — | +25% +10% |
| Bucolic Reputation | — | — | 2 1 |
 Buddhist Dissent | — | Buddhism in city | +5% Rebel Chance No random Non-State Religion spread |
| Carved Ivory | — | — | Provides Luxuries: Ivory Unlocks Precious Resource |
| Case-Hardening | — | — | Units gain Herbalist +10%  |
| Chera Coalition Nation | — | — | — |
 Child Labor | — | — | 1 +20% |
| Chola Coalition Nation | — | — | — |
 Christian Dissent | — | Christianity in city | +5% Rebel Chance No random Non-State Religion spread |
| Codex of Highland Wisdom | — | — | +5%  +5% +5%  +5%  |
| Community Farms: Fonio | — | — | 2 / Arid 2 on Arid tiles |
| Confucianism | — | — | -2 1 +20% |
| Consular Tribunes | — | — | 1 -10% +10% |
| Contaminated Water Supply | — | — | -10% |
| Convoy | — | — | 1 |
| Corruption Reform | — | — | 1 1 Yield Rate Opinion / |
 Cultural Pageant | — | — | 8 |
| Den of Vice | — | — | 2 -10 1 |
| Diseased Citizens | — | — | 2 -10% -20% |
| Displayed Relics | — | — | 2 |
| Divine-Bred Horses | — | — | +50 Unit Trait XP / Horse +50 XP for Horse units built here |
| Dramatic Plays | — | — | 2 1 |
| Drought Acclimation | — | — | Infantry units gain Drought Mounted units gain Drought Infantry units built here gain Drought Adept Mounted units built here gain Drought Adept |
| Ebony | — | — | Provides Luxuries:  |
| Elephant Stables | — | — | -50% Unit Trait Train Modifier / Elephant -50% Elephant unit cost |
| Exotic Animals | — | — | Provides Luxuries: Exotic Animals |
| Exotic Fur | — | — | Provides Luxuries: Exotic  |
| Festival | — | — | 1 |
| Festival: The Wash | — | — | 1 2 |
| Food Rations | — | — | 1 2 /Pop |
| Forced Deportations | — | — | — |
| Forced Deportations | — | — | 1 1 |
| Forced Labor | — | — | 1 +20% |
| Foreign Fighters | — | — | 1 +20% |
| Forester's Guild | — | — | +20% |
| Fortified Monasteries | — | — | Can hurry Units with |
 Gladiators | — | — | 2 1 -2 |
| Governor | — | — | 2 2 4 4 4 1 |
| Grain Dole | — | — | 2 +20% |
| Grain Silo | — | — | +20% |
 Hindu Dissent | — | Hinduism in city | +5% Rebel Chance No random Non-State Religion spread |
| Horreum Storehouse | — | — | -5 -2 +10% +20% |
| Hostile Garrison | — | — | 4 |
| Hunt | — | — | 1 |
| Hunt for the Killer | — | — | — |
| Hunt for the Killer | — | — | — |
| Hunting Tradition | — | — | Unlocks Hunt |
| Imperial Necropolis | — | — | +10% +10% +10% |
| Improved Education | — | — | 1 / Level |
| Improved Hydraulics | — | — | +50%  |
| Improvised Defenses | — | — | -2 +5 City HP |
| Increased Taxation | — | — | 1 +20% |
| Inquiry | — | — | 1 |
| Jade | — | — | Provides Luxuries:  |
 Jewish Dissent | — | Judaism in city | +5% Rebel Chance No random Non-State Religion spread |
| Khufu's Pyramids Local Tours | — | — | 1 |
| Khufu's Pyramids Tourism Board | — | — | 10 |
| Labyrinth | — | — | -1 2 +20% |
| Leviathan Skull | — | — | +10% +20% |
| Literature | — | — | Provides Luxuries: |
| Literature | — | — | Provides Luxuries: |
| Local Ascetic | — | — | 2 |
| Lumber Imports | — | — | 10 10  |
| Luxurious Delights | — | — | 1 +20% |
 Manichaean Dissent | — | Manichaeism in city | +5% Rebel Chance No random Non-State Religion spread |
| Manual of Rhetoric | — | — | 1 +20% |
| Merchant Reparations | — | — | 2 -20 |
| Merchant Town | — | — | -10% +50% |
| Midwifery | — | — | +20% |
| Mineral-Rich Soil | — | — | +20% |
| Mint Coin | — | — | — |
| Mint Coin | — | — | — |
| Misthophoria | — | — | +20% +20% +20% |
| Monarchical Ownership | — | — | -8 200 |
| Monumental Gate | — | — | 1 4 |
| Musical Tradition | — | — | 1 2 / |
| National Holiday | — | — | 1 1 -5 |
| Obelisks | — | — | 2 /Shrine |
| Office of Efficient Taxation | — | — | -25% |
| Olives | — | — | Provides Luxuries: Olive |
| Olympiad | — | — | 1 |
| Outbreak | — | — | 4 -60% |
| Pagan Colleges | — | — | +20% +10% |
| Pandya Coalition Nation | — | — | — |
| Patronage of the Death Gods | — | — | 1 +10% +10% |
| Patronage of the Fire Gods | — | — | -4 +20% |
| Patronage of the Healing Gods | — | — | +20% Units gain Herbalist -20% |
| Patronage of the Hearth Gods | — | — | 1 -20% |
| Patronage of the Hunting Gods | — | — | -20% +20% |
| Patronage of the Love Gods | — | — | 1 -20% |
| Patronage of the Royalty Gods | — | — | +20% +10% |
| Patronage of the Sea Gods | — | — | -4 +20% |
| Patronage of the Sun Gods | — | — | -20% +20% |
| Patronage of the War Gods | — | — | -20% +20% |
| Patronage of the Wisdom Gods | — | — | +20% +20% |
| Perfume | — | — | Provides Luxuries:  |
| Piracy Suppression | — | — | +20% -10% |
| Porcelain | — | — | Provides Luxuries:  |
| Priests of God's Consort | — | — | 2 2 |
| Private Baths | — | — | 1 5 /Pop |
| Propaganda | — | — | +20% |
| Protected Woodlands | — | — | 1 2 |
| Protection Edicts | — | — | 1 +10% |
| Public Mural | — | — | 1 2 |
| Purple Dye | — | — | +20 Family Opinion |
| Quarantine | — | — | 2 +1 Unit Heal/Turn in Territory |
| Refined Wootz | — | — | Melee units gain Strike1 Melee units built here gain Strike I |
| Reforestation Efforts | — | — | +20% +50% Vegetation Regrowth Rate |
| Reformed Monastic Traditions | — | — | +10% +50% Monastery |
 Religious Dissent | — | — | +5% Rebel Chance No random Non-State Religion spread |
| Research Cloister | — | — | +30% |
| Royal Inscriptions | — | — | +10% +10% +10% |
| Salt Production | — | — | +20% +10% |
| Sandstorm Drills | — | — | Infantry units gain Sandstorm Mounted units gain Sandstorm Infantry units built here gain Sandstorm Adept Mounted units built here gain Sandstorm Adept |
| Sangam Literature | — | — | — |
| Scientific Method | — | — | 1 +10% |
| Second Capital | — | — | 2 8 |
| Settled Brahmins | — | — | 2 +40 Religion Opinion / Hinduism |
| Sewer System | — | — | 1 +20% +20% |
| Shrine of the Unknown God | — | — | 6 /Pagan Religion +50% Vegetation Regrowth Rate |
| Silk | — | — | Provides Luxuries:  |
| Silphium | — | — | Provides Luxuries: Silphium |
| Skilled Ironworkers | — | — | +10%  |
| Spices | — | — | Provides Luxuries:  |
| Statue of Dionysus | — | — | 4 |
| Sword Cult | — | — | 2 |
| Sword Cult Tithe | — | — | 10 |
| Tea | — | — | Provides Luxuries: Tea |
| The Golden Tree | — | — | +10% 40 /Cultivator |
| The Sand Pits | — | — | +20% +20% |
| The Ziggurat Crumbles | — | — | -4 |
| Timber Salvage | — | — | -1 2 /Pop |
| Trade Winds | — | — | +100% |
| Training Pits | — | — | Units gain Fierce -5% |
| Tribal Forum | — | — | +10%  +10% +10% |
| Triumph | — | — | 2 |
| Turpan Wells | — | — | 4 -10% +20% |
| Uncooperative Populace | — | — | +30% Urban Specialist Production Time +30% Specialist production time |
| Unruly Birds | — | — | -1 |
| Untaxed temples | — | — | +10% +10% |
| Urban Cohorts | — | — | 2 -5 |
| Volcanic Fertilizer | — | — | +20% |
| War Council | — | — | -2 -1 +20% |
| Wardens of the Wilds | — | — | Units gain Tracker -10% |
| Warrior Tradition | — | — | -5% +10% +10% Units gain Shieldbearer -10% |
| Wary of the Mountain | — | — | 1 +25% Specialist production time |
| Weights and Measures | — | — | -10% |
| Wootz Steel | — | — | Provides Luxuries:  |
| Work of Art | — | — | +20% |
| Ziggurat Love Shrine | — | — | 1 +10% |
| Ziggurat War Shrine | — | — | +10% +10% |
| Ziggurat Wisdom Shrine | — | — | +10% +10% |
| Zoo | — | — | +10% +20% |
| Zoroastrian Dissent | — | Zoroastrianism in city | +5% Rebel Chance No random Non-State Religion spread |