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Bestiary

Every creature leaves a trail. Some in earth, some in memory, and some in the desires they awaken.

Erosia breathes with extraordinary life: beasts beneath the Three Moons, restless spirits, emotion-born fiends, ancient fey and peoples whose cultures are too often mistaken for monstrosity. The Bestiary is a field guide to these beings, not a catalogue of enemies. An encounter might become a battle, a bargain, a rescue, a mystery or the beginning of an unlikely friendship.

The Kaestra Catalogue

The Catalogue is curated in the spirit of Morvane Kaestra, a Luminari Sigilwright, arcane naturalist and field chronicler. Her observations draw upon folklore, tracks, specimens, magical residue, anatomy, habitat and direct encounter. The MK seal identifies records she has personally examined or authenticated; where testimony is uncertain, the text says so.

Morvane is not omniscient. Conflicting witness statements, incomplete observations and evolving classifications are part of the natural history of Erosia. Each discovery may illuminate an old legend, or reveal how much remains unknown.

Every Creature Has a Desire Engine

A Desire Engine is mandatory for every Bestiary creature. It is the living motive that links a creature’s ecology to its decisions and to what happens at the table. Desire is not synonymous with sexual appetite. A guardian may desire safety, a haunt may desire remembrance, a construct may desire completion, and a predator may desire territory.

  • Want: What does the creature pursue, protect, fear losing or need to resolve?
  • Trigger: Which circumstances awaken or intensify that desire?
  • Expression: How does desire change behavior, abilities, tactics, hazards or the social encounter?
  • Resolution: What satisfies, redirects, complicates or ends the encounter, including nonviolent possibilities?
  • Modes: Core fifth-edition mechanics remain usable on their own; Veiled Play emphasizes non-explicit dramatic pressure, while Unveiled Play adds only the applicable Erosian desire and arousal rules.

Veiled Play uses the Composed, Stirred and Overwhelmed states to express Desire pressure. When a creature becomes Overwhelmed, resolve the stated effect and end its Desire condition as directed. Unveiled Play instead uses the complete Mechanics of Desire: EROSaves, Arousal (0–6), Libido, Climax Effects and Depletion. At Arousal 6, a creature resolves Climax unless a specific rule states otherwise; Arousal may decrease or reset through the published rules. Desire mechanics can represent sexual, emotional, primal or supernatural experiences without requiring every encounter to be sexual. Table consent, player Scene Authority and character boundaries remain paramount. See Mechanics of Desire.

Browse Erosian Beasts, Creatures, and more…

Begin with the creature families below. Each field record brings together the creature’s identity, habitats, reputation, distinctive desires and playable encounter rules. A being’s appearance, reputation or creature type never tells the whole story.

  • Follow a family: Devils and Demons, Cryptids, Fey, Beasts, living flora, Undead, Constructs, nonplayable peoples and mythic beings each reveal different truths about Erosia.
  • Choose an encounter: Creature type, Challenge Rating, habitat and desire can help a Game Master choose an appropriate meeting.
  • Read the field record: Morvane Kaestra’s notes, ecology, the Desire Engine, fifth-edition statistics, and Veiled or Unveiled rules provide the details for play.

Browse the Creature Families

The collections below are arranged by Erosian family and folklore. Creature type, CR, region, encounter role and affinity provide secondary ways to classify an entry. A cryptid, for example, may mechanically be Fey, Plant or Monstrosity.

Fiends

Emotion-born Devils, Chrysalis-linked Demons and other fiendish beings.

Explore: Imp · Heartbroker · Mirror-Claimant · Lamenter · Cinder Judge

Cryptids & Folkloric Beings

Creatures that straddle folklore, contested reports and field evidence.

Explore: Cryptids of Erosia · Jack O’Rapture

Fey & Ancient Spirits

Covenants, places of power, living seasons and independent spirit beings.

Explore: Maedra, the Straw-Stitched Bride

Beasts & Monstrosities

Wild ecologies, extraordinary predators, territorial guardians and unusual anatomies.

Living Flora, Oozes & Elementals

Blooming guardians, emotionally resonant jellies, awakened growth and elemental life.

Undead & Hauntings

The unfinished business of memory, grief, oaths and spectral attachment.

Constructs & Arcane Anomalies

Made beings, magical phenomena and creations that develop purposes of their own.

Nonplayable Peoples & Cultures

Societies represented with history, agency, ecology and encounter roles.

Explore: Gnolls — The Matriarchal Packs

Celestials & Mythic Entities

Exalted beings, divine servants and rare manifestations of supernatural power.

The Field Guide Grows

The Three Moons illuminate more than any one lifetime can study. Morvane’s field journals follow spoor, spellcraft and testimony into wild places where yesterday’s certainty may become tomorrow’s question.

Beyond every familiar road, another creature waits to be understood.

Start With a Published Field Record

  • Lamenter · contracts shaped by regret and unfinished grief
  • Cinder Judge · reckoning, grievances and the fury of retribution

    • Reading an Entry

    Each complete entry brings together an identity and habitat summary, Kaestra field observations, ecology and behavior, the Desire Engine, encounter guidance, a fifth-edition stat block, separate Veiled and Unveiled modules where relevant, and variants or adventure connections. Threat is not an alignment, and a negotiation, withdrawal or alliance can be as playable as combat.

    Every story changes the world. Every creature wants something.

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