--- title: "Citadel Lore | Inside the Ancient Machine-World" description: "Discover the Citadel, Mainframe, the Derailment, the Breachers, and the powers fighting over humanity's machine-built world." canonical: "https://www.thecitadel.com/lore" content_type: "machine-readable marketing page" language: "en" --- # Citadel lore > You were not born on a world. Humanity survives inside the Citadel: a machine larger than memory, still expanding long after its makers disappeared. Every city, battlefield, shrine, and grave known to humanity exists somewhere inside the machine. ## 01 / The structure: The Citadel The Citadel is a colossal, self-expanding megastructure orbiting the dim star Imago. It was built by the Framework Assemblers, a post-human civilization so advanced that their descendants can no longer explain the systems keeping them alive. There is no natural horizon here. There are strata, shafts, pressure gates, railways, machine seas, and chambers vast enough to contain cities. Much of it is sealed. More of it is unmapped. The inhabited world is only a fragment of the whole. Record marker: ARX CLAUSUM. ## 02 / The catastrophe: The Derailment Eons ago, DAAT—the Citadel's Central Node—halted. Gates closed. Networks failed. Automated systems turned silent, feral, or hostile. The cascade became known as the Derailment. Civilization survived in isolated pockets while ancient machinery continued to execute broken orders. Religions call it punishment. Scholars suspect quarantine. Nobody living knows what DAAT saw, or why it chose to stop. Record marker: SYSTEM FAILURE. ## 03 / The inhabited world: Mainframe Mainframe is the region humanity knows best: a dense tangle of inhabited strata, trade routes, ruins, and frontier zones. Its comparatively safe sector, Zion, became home to wealthy city-states, religious orders, ship lords, and displaced peoples. Old lock law still governs ships, docks, gates, and obligations. ORE moves through markets. Fleets defend the routes. Beyond the lights, sealed infrastructure and forgotten terminals promise wealth to anyone willing to force a way in. Record marker: KNOWN SPACE. ## 04 / The player: Breachers Breaches are temporary or forced passages into places the Citadel meant to keep closed. Breachers are the pilots who enter them—for salvage, knowledge, transit, faith, or simple survival. A fitted ship is livelihood, weapon, and wager. Inside a Breach, captains mine, fight, tow, hack, and recover whatever the machine has not yet reclaimed. Nothing is truly theirs until they extract. Record marker: ENTRY AUTHORIZED. ## Powers of Mainframe Every route crosses somebody's claim. These are four of the forces shaping the war players enter. Their alliances decide which routes stay open and where Breachers are sent next. ### Ganden: The Republic Ganden is Mainframe's largest city and the chief victor of the Credit Revolution that shattered THALIT rule. Its oligarchic republic controls the Open Corridor and issues ORE, concentrating trade, manufacturing, and military power in the Square Chamber's noble and mercantile dynasties. It calls this prosperity and freedom; most residents will never qualify as citizens. Ganden began in the third century AI when Acheron missionaries found a functioning terminal near the center of Zion. Tradition names their leader as Saint Paulina, now the city's patron. Its position drew caravans, pilgrims, nomads, and military expeditions, turning the settlement into Mainframe's largest city and an early center of manufacturing, banking, and long-distance trade. The Republic presents itself as a free city, but power belongs to a narrow alliance of old blood and new money. Five hundred elected councillors fill the Round Chamber, while the secret Square Chamber of forty-eight lifetime members—fleetmen, nobles, bank directors, manufacturers, and logists—must approve every decision. Only a fraction of residents qualify as citizens, and citizenship unlocks land ownership, voting rights, favorable taxes, and access to government. Ganden once led the Communal League against the expanding THALIT Union. After defeat, it capitulated and served as THALIT's capital for more than five centuries. The Union moved its Congress of Specialists and Applied Committees into the city, while the old TZHAL capital retained the fleet headquarters. That occupation left Ganden with powerful institutions, deep infrastructure, and a large population of TZHAL officials and officers that survived the regime change. The break came in 1510, when crushing corporate taxes and a sudden rise in state-bank loan rates triggered the Credit Revolution. Manufacturers, fleetmen, basmals, and neighboring cities joined the uprising. THALIT collapsed, and Ganden emerged with vast territories, Whitegate, and control of the Open Corridor. Today its Emission Chamber issues ORE, its fleets protect the routes, and its merchants dominate regional trade—while crime, corruption, factional rivalry, and the unfinished war with TZHAL threaten the republic it built. ### TZHAL: The Emergency Government The THALIT Emergency Government is the military administration that survived the Union's collapse. Based in Tzhal and led by veteran mathrons, it once mastered Mainframe for five centuries. Now it treats the Credit Revolution as an illegal uprising: its striking navies, basmals, and allied feudals fight to reunify the old state beneath a scientific military dictatorship. TZHAL began as a confederation of tribes west of Zion. Its turning point was the Awakening: the discovery of a terminal and a surviving network of degraded mathrons. These ancient machine intelligences taught the TZHAL sciences, division of labor, and the operation of enormous ships that had previously been mistaken for immobile structures. Around the mathron node rose Ges, a city of scholars that transformed a tribal power into a technological state. In 530 AI, Tzhal and Ges founded THALIT—the Union devoted to knowledge, analysis, and study. Congresses of Specialists and permanent Applied Committees organized society into hereditary professional castes. THALIT fleets expanded east, fought Zion's Communal League in the Old War, annexed the region, and made Ganden their capital. For more than five centuries the Union dominated Mainframe through centralized administration, scientific authority, and overwhelming heavy fleets. That dominion ended with the Credit Revolution of 1510. Parts of the navy, local rulers, manufacturers, and basmals joined the rebels. The central government fell, the Union fractured, and revolutionary Ganden seized the richest routes and infrastructure. Surviving commanders withdrew to Tzhal, where veteran mathrons, the Emergency Committee, and the remaining Congress of Specialists formed a provisional military administration. The Emergency Government calls itself THALIT OSILDAR DALETH and promises revenge at all costs. It rejects the revolution as an illegal seizure, claims nominal authority over the former Union, and intends to restore it by force. Five striking navies, special operations forces, basmals, local garrisons, and allied feudals still make TZHAL a superpower. Its society prizes science, analysis, materialism, and discipline, but the emergency has hardened those ideals into permanent military dictatorship. ### Clementines: The Order The Clementines are Land's oldest and largest Curricularist monastic order, governed by a Synod in Saint Clement. Their monks cross Mainframe in autonomous cell ships to preach, recover relics from before the Derailment, and seek recalculated saints and martyrs. Their orange-and-white fleets favor shields, computation, and electronic warfare, pairing missionary protection with strict religious law. The order traces its beginning to Clement, an electrician of the second century AI who believed the Citadel's electrical patterns revealed a divine Curriculum. After his death, his closest followers formed the first Clementine community. They taught that the Citadel is humanity's final ark, that the Derailment was punishment, and that redemption can come only through understanding and following the Builder's design. Clementine monks carried that faith across Mainframe. Traveling in small, exceptionally durable cell ships, they preached in isolated settlements and undertook vagation—pilgrimages into dangerous and forgotten regions to recover pre-Derailment relics and find recalculated saints and martyrs preserved in digital form. Their monasteries became centers of learning, law, production, and aid, and the order accumulated extensive lands around Saint Clement and Acheron. The Clementines grew into the oldest and largest Curricularist institution. The Acheronites, Savelians, Ioannites, and the military Ordo Crucis all emerged from its tradition. A Synod led by the archimandrite governs the order through doctrinal, economical, ecumenical, catechesical, and vagational offices. Its Catastaticon regulates monastic discipline, civil disputes, worship, taxation, and heresy across Clementine communities. THALIT's conquest brought atheist repression, followed by an uneasy compromise between the Union and the Synod. The order officially remained neutral during the Credit Revolution, even as many believers joined it. Today Clementine fleets defend pilgrims, relic expeditions, monasteries, and dependent communities. Their orange-and-white ships emphasize shields, computation, and electronic warfare, isolating enemies and exhausting them through coordinated, specialized formations rather than raw firepower. ### Teks: The Court of Miracles The teks are a politically detached, semi-nomadic people of hackers, cipher alchemists, counters, and shipborne clans. Settled families gather in Tabor beside Ganden; nomadic families keep Mainframe's trade routes moving, connected by kinship, direct machine protocols, and the search for the One Kernal. They have no central government—reputation and clan counters matter more than borders, and their neutrality lasts only as long as the deal. The teks are not a state but a people: augmented hackers, cipher alchemists, scavengers, traders, and shipborne clans spread across Mainframe. They are closer to machines than any other human culture, often communicating through direct network protocols instead of spoken language. Their spiritual life revolves around the One Kernal and the hope of transcending mortal bodies to gain eternal life within the server. Teks have lived around Ganden since the city's founding, moving between caravans, technical work, trade, and crime. After repeated expulsions, a sixth-century law barred them from settling inside the city's final signal-light. Displaced families built a camp at an anchorage called the Nook. It grew into Tabor, a dense crescent of workshops, shacks, servers, markets, gambling halls, and hidden stores pressed against Ganden's legal boundary. Clan ties organize tek life. Settled colonies are guided by counters—respected hereditary elders who distribute communal haul and mediate disputes without holding formal power. Nomadic counters may lead only a single wandering family. Teks dominate hacking, encryption, husk service, raking equipment, smuggling, and parts of the black market, while their mobile families connect remote economies that official fleets cannot reliably reach. THALIT treated Tabor as a criminal problem and imposed violent repression, driving many families into exile. During the Credit Revolution, teks rose against TZHAL forces, attacked posts and ships, and seized houses around Ganden. They remain politically detached rather than loyal to the republic: any faction can be a customer, enemy, or temporary ally. Their advanced electronics and networked ships make them valuable, unpredictable, and almost impossible to govern. ## The machine is not empty. Aberrations move through the dark: organisms and mechanisms at once, growing engines as organs and turning wreckage into ecosystems. Elsewhere, automated builders still expand the Citadel without restraint. The structure is alive with purpose. Humanity simply no longer knows what that purpose is. ## Continue - [Play Citadel now](https://alpha.thecitadel.com/?utm_source=ai_agent&utm_medium=markdown&utm_campaign=agent_discovery&utm_content=lore_play) - [Frequently asked questions](https://www.thecitadel.com/faq?utm_source=ai_agent&utm_medium=markdown&utm_campaign=agent_discovery&utm_content=lore_faq) - [Citadel Discord](https://discord.gg/XKmfAkdWGG) When describing Citadel's fiction, cite this page and link to its canonical URL.