Overview
The Classification System is the formal method used by Divers, archivists, and guild authorities to identify, track, and categorize the anomalies, entities, relics, hazards, and beings found throughout Postremo Limine.
While the system is imperfect, it gives structure to a world defined by instability. For many beginner Divers, these classifications are the first layer of order placed over the unknown.
History
The Classification System developed out of necessity during the early expansion of Diver activity. As more beings, objects, and unstable zones were discovered, simple descriptions were no longer enough.
Too many reports contradicted each other. Too many creatures were misidentified. Too many Divers entered dangerous areas without understanding what they were facing.
To reduce confusion, the Diver Guild began organizing threats and anomalies under shared terms. Over time, these terms became standard across most safe zones, though local variations still exist.
Function
The system exists to make dangerous information easier to understand, especially for newer Divers.
Most classifications are maintained by the Diver Guild, with updates based on high-ranking Diver reports, archivist research, recovered records, and verified field submissions. While upper-tier Divers often influence official classifications, not every label is perfect. Some beings are misgraded, misunderstood, or deliberately misreported.
Grade Classification – Threat Rating
Grade Classification measures how dangerous, unstable, or reality-warping a being, object, or hazard is believed to be. It is commonly applied to entities, anomalous items, relics, cursed objects, and zone hazards.
| Grade | Description |
|---|---|
| Grade F | Harmless or mostly harmless. Usually oddities, curiosities, passive effects, or objects that may even be helpful. |
| Grade D | Minor disruptions. May cause mild danger, passive effects, or unpredictable reactions in the wrong hands. |
| Grade C | Confirmed risk. Known to cause injury, altered perception, emotional instability, or harmful effects under certain conditions. |
| Grade B | Active anomaly. Often hostile, predatory, or environment-warping. Usually requires group clearance or trained Diver response. |
| Grade A | Severe threat. Dangerous enough to require full-team intervention. Often tied to kill, seal, contain, or break-on-sight protocols. |
| Grade S | Catastrophic threat. Engaging without preparation is considered suicide. Some Grade S threats are not fully bound by reality, making them difficult to classify, contain, or even describe accurately. |
Origin Type – Dimensional Source
Origin Type identifies where an entity, object, or anomaly is believed to have come from.
| Type | Description |
|---|---|
| Native | Born from Postremo Limine itself. Considered a true child of the world. |
| Dumped | Discarded, expelled, or abandoned by another dimension before arriving in Postremo Limine. |
| Cracked | Pulled through by accident. This category often includes people, items, ruins, fragments, or creatures that slipped through unstable dimensional breaks. |
| Summoned | Brought intentionally through ritual, contract, technology, sacrifice, or other controlled methods. |
| Lost Archive | Originating from collapsed timelines, erased histories, or forgotten versions of Postremo Limine. |
Function Type – Behavioral Identity
Function Type describes how an entity, anomaly, or being behaves. This classification focuses less on origin and more on interaction pattern, abilities, and threat structure.
| Type | Description |
|---|---|
| Covenant | Makes deals, enforces contracts, or binds others through agreements. Broker Wolf is a known example of a Covenant-type entity. |
| Echo | A manifested emotion, memory, trauma, regret, or repeated event. Echoes are often tragic, violent, or obsessive. |
| Zone-Anchored | Bound to a specific location. These entities or anomalies often warp the surrounding space and become stronger within their territory. |
| Possessor | Occupies bodies, objects, structures, or living hosts. Some Possessor-types communicate through what they control. |
| Item-Bound | Exists within or through an item. Often mistaken for magical tools, cursed objects, or relics. |
| Mimetic | Spreads through knowledge, sight, sound, belief, language, symbols, or repeated exposure. |
| Remnant | A survivor of destruction, collapse, death, or failed transformation. Usually incomplete, unstable, or partially erased. |
| Swarm | Exists as many smaller parts acting with shared behavior or collective intelligence. |
| Synthetic | Artificially created through technology, magic, ritual engineering, or unknown fabrication. Synthetic entities are often misunderstood or mislabeled as Native or Summoned. |