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Oakhaven

by David · Sci-Fi · 5e-Compatible

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Oakhaven hero

The continent of Oakhaven is a vast boneyard of titans, their calcified forms rising as mountain ranges and mesas. From these fossil giants, the empire mines marrow — a volatile magical substance that has sparked an industrial renaissance even as it whispers forgotten secrets into the minds of those who handle it. Now the dead forests stir with necrotic life, and the soil itself remembers the gods buried beneath it, waiting to be awakened.

01

Setting

Technologymedieval
Magicstandard
Seed730351259
Themes
titanic remainsmarrow magicburied godsundead wildsimperial ambition
Common races
humanelfdwarfhalflingtitan-blooded
02

Geography

Primary terrains
plainsforesthillsmountainsswamp
Climate
temperatearid
Landmarks
The Spinal Canaldungeon
Regions
The Titan's Spinearid

A jagged mountain range of fossilized vertebrae stretching across the continent, where miners descend into spinal canyons to extract the richest marrow deposits.

Marrowwoodtemperate

A living forest of petrified trees animated by seeping necrotic marrow, where roots pulse with forgotten divinity and the dead walk beneath crystalline canopies.

The Ribcage Plainstemperate

Vast grasslands dotted with massive curved formations of calcified ribs, where herders graze livestock on nutrient-rich grass growing from titan bone.

Ossuary Coasttemperate

White cliffs of compressed bone fragments tower over the churning sea, where tide pools glow with bioluminescent marrow and ancient fossils wash ashore with each storm.

The Skull Basinarid

A massive depression formed by a titan's cranium, filled with shimmering marrow lakes where the reflected light shows visions of dead gods.

03

Factions

The Ossian Empire
nation · The dominant imperial power controlling marrow extraction and distribution, ruled by the Calcified Throne from the capital of Osteopolis.
Territory: Central Ribcage Plains and major trade routes
Goals
  • Extract and refine marrow for profit
  • Maintain order across the boneyard
  • Suppress dangerous marrow cults
Values
OrderProsperityProgressStability
Empress Xyla III, the Iron-Blooded
The Cult of the Hollow God
cult · A secretive religious order that worships the dead titans as gods, believing that by harvesting enough marrow they can resurrect their fallen deities.
Territory: Hidden temples in Marrowwood and Titan's Spine
Goals
  • Awaken the titans from their eternal slumber
  • Control all major marrow deposits
  • Replace imperial rule with theocratic dominion
Values
FaithSacrificeResurrectionObedience
High Pontiff Gravestead, the Voice of Bones
The Bone-Gravers Syndicate
guild · A criminal network of grave-robbers, smugglers, and marrow-thieves who operate in the lawless wilds, selling illicit marrow on the black market.
Territory: Hidden camps throughout Ossuary Coast and Skull Basin
Goals
  • Profit from unauthorized marrow extraction
  • Undermine imperial taxation
  • Control smuggling routes
Values
GreedFreedomLoyaltyOpportunity
Mother Othlia, the Widow of the Wastes
The Order of the White Candle
order · A monastic order of paladins and scholars dedicated to containing the corruption seeping from the titan corpses and protecting civilization from the rising undead.
Territory: Fortresses and shrines across all regions
Goals
  • Contain the necrotic corruption spreading from marrow deposits
  • Destroy undead and abominations
  • Preserve knowledge of the ancient past
Values
DutyProtectionKnowledgePurity
Grand Marshal Kaelen, Light-Bringer
04

Threats

The Marrow-Tide Blightmajor corruption

A spreading corruption born from over-extraction of titan marrow, turning fertile lands into necrotic wastelands and reanimating the dead as flesh-hollow servants.

Manifestations · Skeletons of humans and beasts fused with calcified armor, Trees that bleed necrotic black ichor, Corrupted marrow pools that whisper secrets to drive mortals mad
Signs · Lichens grow in spiral patterns resembling titan vertebrae, Animals behave erratically before dying and rising again, Water sources turn chalky and taste of ancient dust
The Titan Stirringsexistential elemental

The fossilized titans are not truly dead — they dream in the deep, and as marrow levels drop, ancient gods begin to wake beneath the soil.

Manifestations · Earth tremors that shake entire regions, Voices emanating from bone formations, commanding listeners to dig deeper, Sections of titan remains briefly coming to life before settling back into stone
Signs · Marrow deposits hum with resonant frequencies, Dreams of crushing weight and cosmic voices become common, Geological features shift overnight
05

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