In the fictional world of Exandria, created for the tabletop role-playing series Critical Role, few ancient civilisations are as fascinating as Aeor. Known for its extraordinary magical achievements, advanced technology, and ambitious pursuit of power, Aeor was one of the most formidable floating cities of the Age of Arcanum.
The city represented the heights of mortal ingenuity during an era when powerful spellcasters pushed the boundaries of what magic could accomplish. Its inhabitants developed sophisticated magical systems, created sentient artificial beings, and pursued knowledge that threatened the established relationship between mortals and the gods.
However, Aeor’s ambition ultimately contributed to its destruction during the Calamity, a devastating conflict that reshaped Exandria. Centuries later, its ruins remained a source of mystery, danger, and valuable discoveries for adventurers exploring the frozen region of Eiselcross.
What Was Aeor?
Aeor was a massive flying city-state that existed during the Age of Arcanum, a period in Exandrian history when arcane magic and magical innovation reached remarkable levels.
Unlike ordinary settlements, Aeor travelled through the skies, supported by powerful magical technology. Its immense structure housed different districts, advanced facilities, residential areas, and institutions dedicated to magical research.
The city was governed by powerful mages and developed a reputation for prioritising efficiency, technological progress, and the pursuit of knowledge. Its society increasingly embraced the idea that mortal magic could rival, or even surpass, divine power.
Aeor was not simply a large city suspended in the air. It represented an entire civilisation built around the belief that magical understanding could overcome nearly any limitation.
Although other floating cities existed during the Age of Arcanum, Aeor became particularly famous for its technological sophistication and its increasingly hostile attitude towards the gods.
The Age of Arcanum
The Age of Arcanum was a remarkable period in Exandria’s history. During this era, powerful mages established sophisticated societies and developed magical technologies that transformed everyday life.
Magic was used for transportation, construction, research, communication, and numerous other purposes. Some civilisations built entire cities that floated above the ground, while others pursued experiments involving life, death, and the nature of reality.
Aeor emerged as one of the most advanced societies of this period.
Its inhabitants believed that continued research could allow mortals to overcome limitations traditionally associated with divine authority. This attitude influenced the city’s political culture and scientific ambitions.
However, the Age of Arcanum was also characterised by inequality and competition. Access to magical resources was not equally distributed, and powerful institutions frequently sought to expand their influence.
As the ambitions of mortal spellcasters grew, tensions between mortals and the gods intensified. Aeor eventually became one of the most significant examples of this conflict.
Why Was Aeor Considered So Powerful?
Aeor’s reputation came from its combination of magical knowledge, advanced infrastructure, and ambitious research.
Advanced Magical Technology
Aeor developed sophisticated magical systems that supported the operation of its enormous floating structure and the activities of its inhabitants.
The city featured interconnected districts, complex infrastructure, and specialised facilities. Its technologies demonstrated how deeply magic had been integrated into the functioning of an advanced society.
Brumestone, a magical material capable of supporting levitation when appropriately enchanted, was associated with the floating cities of the Age of Arcanum.
The scale of Aeor’s infrastructure reflected the extraordinary resources and technical knowledge available to its rulers and researchers.
Sentient Automatons
One of Aeor’s most remarkable achievements was the creation of Aeormatons, artificial beings capable of sentience.
These constructs were more advanced than ordinary mechanical servants. They possessed individual identities and eventually gained recognition as citizens within Aeorian society.
Their existence raised important questions about consciousness, identity, and the nature of the soul.
The development of sentient artificial beings distinguished Aeor from many other societies in Exandria and demonstrated the remarkable capabilities of its magical researchers.
Research Beyond Conventional Limits
Aeorian researchers investigated subjects that other societies might have considered dangerous or unacceptable.
Their work included advanced magical experimentation, biological research, and methods for resisting divine observation and interference.
Such achievements contributed to Aeor’s power but also created significant risks. As the city became increasingly confident in its abilities, its leadership pursued projects that threatened forces far beyond ordinary mortal authority.
Aeor’s Conflict With the Gods
One of the defining features of Aeor’s history was its growing opposition to divine authority.
Initially, the city maintained some religious traditions. Over time, however, its political and intellectual culture increasingly favoured the belief that mortals should not remain dependent on the gods.
Aeorian researchers developed methods intended to interfere with divine observation and prevent certain gods from directly accessing the city.
These developments reflected a broader belief that advanced magical knowledge could provide independence from divine influence.
The city’s ambitions eventually extended beyond protection and self-determination. Its leadership pursued the development of a weapon known as the Factorum Malleus, or Creator Hammer, intended to destroy divine beings.
This project placed Aeor on a collision course with the gods.
The possibility that mortals could develop technology capable of killing a god represented an extraordinary threat to the established order of Exandria.
The Fall of Aeor During the Calamity
Aeor’s destruction occurred during the Calamity, a catastrophic conflict involving the Prime Deities, the Betrayer Gods, and the mortal civilisations caught between them.
Although the gods were divided by their own conflict, Aeor’s attempt to develop a weapon capable of challenging divine power created a threat that crossed those divisions.
The Prime Deities and the Betrayer Gods temporarily joined forces to bring down the city.
During the events surrounding its destruction, divine forces infiltrated Aeor and worked to dismantle its defences. The city’s advanced magical systems could not ultimately protect it from the combined intervention of the gods.
Aeor fell from the sky and crashed into the frozen region now known as Eiselcross.
The destruction devastated the city and its inhabitants. Much of its technology was lost, buried beneath ice and rubble, or scattered across the surrounding landscape.
The catastrophe became one of the most significant events associated with the final years of the Age of Arcanum.
The Ruins of Aeor in Modern Exandria
Long after its destruction, Aeor remained an important archaeological and magical site.
Its ruins contained evidence of an advanced civilisation whose knowledge had largely disappeared from the world. Ancient laboratories, damaged constructs, magical devices, and remnants of its infrastructure offered clues about the city’s achievements.
The frozen environment of Eiselcross made exploration especially dangerous. Harsh weather, hazardous creatures, unstable ruins, and unpredictable magical effects created significant challenges for those seeking its secrets.
Nevertheless, the potential rewards attracted expeditions from different regions and political powers.
Researchers, adventurers, and organisations sought Aeorian relics for their historical value, magical capabilities, and potential applications.
Some discoveries helped explain the city’s technological achievements, while others revealed the darker aspects of its experiments and political ambitions.
Aeor in Critical Role
Aeor became particularly prominent in Critical Role Campaign Two, when the Mighty Nein travelled into Eiselcross and explored the remains of the ancient city.
Their discoveries revealed the dangers associated with Aeorian technology and the lasting consequences of the city’s research.
Aeor also became central to the story of Exandria Unlimited: Calamity, which explored events surrounding the destruction of advanced magical societies during the Age of Arcanum.
The city’s history connects several major themes within the setting: the consequences of unchecked ambition, the relationship between mortals and gods, the ethical responsibilities associated with scientific discovery, and the fragility of even the most advanced civilisations.
Aeor’s story demonstrates that extraordinary technological power does not necessarily guarantee survival or wisdom.
Conclusion
Aeor was one of the largest and most powerful floating cities of the Age of Arcanum in Exandria. Its advanced magical infrastructure, sentient automatons, and ambitious research made it one of the most remarkable civilisations in Critical Role lore.
Its pursuit of independence from divine authority eventually led to the development of the Factorum Malleus, a weapon intended to challenge the gods. During the Calamity, the city was brought down and crashed into Eiselcross, leaving behind dangerous ruins and remnants of its extraordinary technology.
Centuries later, Aeor continues to represent both the achievements and the dangers of unchecked magical ambition. Its history remains an important part of Exandria’s fictional past, illustrating how the pursuit of ultimate power can transform a civilisation and ultimately contribute to its downfall.