Leridium™ is a fully realized fictional world designed
for narrative campaigns, tabletop play, creative
worldbuilding, and reference. It combines detailed
nations and geography with culture, history, magic,
technology, diplomacy, and everyday life.
Leridium is not only about maps and statistics.
It is also about the people who live in those places:
their festivals, food, crafts, traditions, stories,
rivalries, friendships, and little moments that make
the world feel alive.
Whether you are here to study a nation, explore the
geography, browse the archives, find something funny,
or launch Leridium in Pax Historia, there is always
something new to discover. You can also find more at
leridium.neocities.org/encyclopedia.
(Also, find the Leridium scenario for the game Observe on the Steam Workshop!)
🌎
A Big World
Seven major continents, dozens of nations,
countless regions, and plenty of places to explore.
🎨
Living Cultures
Festivals, food, architecture, crafts, traditions,
languages, and everyday life shape every region.
✨
Magic & Wonder
Enchantments, runes, magical artifacts, and strange
phenomena exist alongside modern technology.
🎮
Playable
Leridium can also be experienced through its
official Pax Historia preset.
Design Principles
Realism: social, economic, and political systems
are internally consistent.
Playable detail: stats and borders map directly
to Pax Historia gameplay.
Modular pages: nations, geography, culture,
history, and resources are separated for clarity.
Cultural diversity: Leridium is home to many
different cultures and traditions.
Fun: Leridium is a creative and enjoyable world
with plenty of room for humor and memorable moments.
Distinct identities: every nation and region
has its own character.
Variety: Leridium contains a wide range of nations,
cultures, environments, and societies.
Magic: Leridium has magic! Spells, enchantments,
runes and more are used throughout the world.
🔎 Find Something in Leridium
Quickly search this page
Main Nations
The central powers of the Heartland
These four nations form the political and economic
core of the Heartland. Each has its own government,
economy, culture, military structure, institutions,
history, and personality.
Diamondvale Kingdom
Constitutional Monarchy —
Capital: Bloomsvale City
Government & Politics
A stable constitutional monarchy with a ceremonial
royal family and a strong parliamentary tradition.
Power is shared between the Crown, an elected Prime
Minister, and a bicameral legislature.
Economy & Infrastructure
A highly diversified economy involving manufacturing,
finance, research, textiles, enchanted tools,
and premium exports. Advanced rail and port
networks connect Diamondvale to its neighbors.
Currency: Diamond Crowns
(1E = 30 DC).
Military & Defense
Diamondvale maintains a professional modern army,
including disciplined infantry, knight cavalry
formations using modern weapons, and fortified
defensive positions.
Institutions & Landmarks
Highminster Abbey
Highminster Abbey is Diamondvale's grand royal
church — a national site for coronations,
major services, and formal pageantry.
Short history
Diamondvale began as a group of closely aligned
cities that united under shared laws, steady
leadership, and a tradition of royal ceremony.
Over time, it grew into a confident, orderly kingdom
known for polished pageantry, civic institutions,
tea halls, biscuit houses, and a warm diplomatic
character.
Grand Duchy of Obsidia
Strict Autocracy —
Capitals: Highwall & Pyroclast
Government & Politics
A centralized autocracy with a powerful ducal court.
Governance emphasizes state planning, heavy industry,
and centralized resource allocation.
Economy & Infrastructure
Resource extraction and heavy manufacturing dominate.
Obsidia exports fortress blueprints, steel, tools,
and industrial goods.
Currency: Obsidia Marks
(1E = 50 OM).
Military & Defense
Large forces and fortified border complexes form
the backbone of Obsidian defense. The country
maintains citadels and heavy strategic positions.
Institutions & Landmarks
Obsidia Citadel
Central planning hall and the seat of industrial
command; a symbol of state power.
Short history
Obsidia rose from volcanic highlands where mineral
wealth enabled rapid industrialization.
The Duchy centralized control after a period of
regional conflict, creating a durable but rigid
state apparatus.
Dominion of Galeheim
Militaristic Autocracy —
Capital: Galehold
Government & Politics
Galeheim is governed by a centralized military
command under Supreme Commander Garrick Steele.
Political life emphasizes discipline, industrial
organization, and strategic preparedness.
Economy & Infrastructure
A heavily industrial economy built around advanced
workshops, engineering, machinery, and metalworking.
Currency: Iron Crowns
(1E = 130 IC).
Military & Defense
Military readiness is central to the Dominion.
Its forces emphasize logistics, industrial production,
engineering, and rapid mobilization.
Institutions & Landmarks
Workshop District
Galeheim's principal industrial center,
producing advanced machinery and superior
weapons for domestic use and export.
Short history
Galeheim developed around industrial discipline
and military organization.
Its workshop system transformed the Dominion
into a major machinery and arms producer.
Kingdom of Ebonvale
Constitutional Monarchy —
Capital: Ebonreach
Government & Politics
A constitutional monarchy led by King Lucian
Blackthorn.
Ebonvale combines formal royal institutions
with a structured provincial administration.
Economy & Infrastructure
Ebonvale's economy is supported by strong
infrastructure, skilled production, books,
stonework, and enchantment-related scholarship.
Currency: Ebon Marks
(1E = 180 EM).
Military & Defense
The kingdom maintains a capable professional
defense structure with particular strength in
fortified regions and organized logistics.
Institutions & Landmarks
Hiedenburg Cathedral & Ebonreach Palace
Major royal and cultural landmarks representing
Ebonvale's neo-Gothic character and institutional
traditions.
Short history
Ebonvale grew into a powerful Heartland kingdom
around its neo-Gothic civic culture, skilled
stoneworking, books, and enchantment traditions.
Geography
Continents, terrain, climate, waterways, coasts,
and regional geography
Leridium is a geographically broad world whose nations
are shaped by the terrain around them.
Seven major continental regions are represented:
Atemus, Novaterra, Nortundra, Sundarus, Kharavas,
Thalmeris, and Virelia.
Across those continents are volcanic mountain systems,
alpine plateaus, fertile heartlands, deserts, tundra,
tropical forests, river valleys, fjords, archipelagos,
and developed coastal zones.
Atemus — The Heartland
Atemus contains the classical political core
of Leridium.
Its landscapes range from the Obsidian Spine
and Peaks of Galeheim to fertile plains,
coastal forests, and warm seas.
Novaterra — Frost, Industry & Desert
Novaterra combines sharply contrasting environments:
cold northern barriers, gemstone-bearing highlands,
green belts, prairies, and extensive desert regions.
Nortundra — Alpine Northlands
Nortundra is dominated by alpine geography,
tundra belts, high plateaus, forests,
and cold-water coasts.
Sundarus — Tide, Steppe & Tropics
Sundarus is characterized by tropical archipelagos,
monsoon-influenced coasts, broad steppe horizons,
and desert transitions.
Kharavas — Desert Frontiers
Kharavas is a rugged continent of highlands,
iron-rich plateaus, deserts, and storm-lashed
coasts.
Thalmeris — Monsoon & River Realms
Thalmeris is shaped by monsoon coasts,
jade forests, terraced riverlands, volcanic
islands, and ancient dynastic landscapes.
Virelia — Jungles, Forests & Heartlands
Virelia consists primarily of temperate
heartlands, jungles, forests, lakes,
and ancient stone roads.
Major Geographic Systems
Mountains & Highlands
Mountain systems frequently form borders,
resource zones, defensive positions,
and cultural centers.
Rivers & Riverlands
Rivers are among Leridium's most important
geographic connectors.
They support farming, cities, transport,
mills, workshops, and trade corridors.
Forests
Forests range from frost-touched pine belts
to tropical canopies and myth-laden temperate
woods.
Culture
Traditions, civic life, craftsmanship, trade,
architecture, and regional identity
Leridium's cultures are highly regional.
Communities are shaped by their institutions,
occupations, architecture, celebrations, trade
practices, crafts, landscapes, political traditions,
and environments.
👑 Heartland Scholarship & Pageantry
Diamondvale gives the Heartland its warm,
storybook charm — lively tea halls, wool markets,
scholars, bright courtyards, music, tradition,
lantern-lit streets, and artisans.
Across Leridium, culture is expressed through
textiles, ceramics, stonework, timber, glass,
spices, food, tools, books, machinery,
and countless other things people create.
Shared Cultural Patterns
Despite enormous regional differences,
several themes recur throughout Leridium.
Craftsmanship is highly valued, whether it appears
as royal textiles, alpine precision tools,
stone carving, pottery, machinery, or shipbuilding.
Trade acts as a cultural bridge.
Imports and exports carry not only resources,
but techniques, foods, styles, technologies,
and ideas between nations.
History
A historical framework drawn from the supplied
nation and world records
The source files describe Leridium through national
histories, institutions, geography, trade systems,
and cultural development rather than one finalized
universal chronology.
This framework connects those records without
inventing a single official timeline where the source
material does not provide one.
Historical theme
Development across Leridium
Early settlement & regional identity
Distinct geographic regions produced distinct
societies: Heartland kingdoms, northern frost
communities, mountain states, desert caravan
cultures, tropical maritime societies, and
river-based agricultural regions.
Rise of civic institutions
Palaces, assemblies, libraries, forums,
archives, guild halls, workshops, observatories,
and public institutions became enduring centers
of governance and culture.
Trade networks
Rivers, ports, caravan routes, mountain passes,
and archipelagos connected economies.
Industrial transformation
Resource-rich regions developed mining,
workshops, foundries, engineering districts,
rail infrastructure, and machinery production.
Royal, republican & communal systems
Leridium developed many forms of government,
from constitutional monarchies and republics
to federations, merchant governments,
direct-democratic communes, and centralized
autocracies.
Modern interconnected Leridium
Modern nations interact through diplomacy,
trade, technology, infrastructure, cultural
exchange, territorial strategy, and Pax Historia.
Pax Historia
Playable Leridium Deluxe Edition™ preset
Take the Leridium setting directly into Pax Historia
with the official playable preset.
The nation statistics, borders, political systems,
and worldbuilding framework are designed to support
gameplay.
🎮 Leridium Deluxe Edition™
Ready to see Leridium in action?
Open the official Leridium Deluxe Edition™ preset
on Pax Historia and start exploring.
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Some nation records identify real-world countries, regions, peoples, historical styles, or cultural inspirations. Those references are used as inspirations for fictional counterparts and do not mean that Leridium™ owns the underlying real-world history, culture, symbols, trademarks, or other third-party rights. Third-party material remains subject to its respective rights holders.
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Permission standard: If a use is not clearly permitted by applicable law or by an express written license from the rights holder, do not assume that it is permitted. A link back to this website is appreciated but is not a substitute for permission.
Leridium™ — All Rights Reserved. The canonical source material remains the Leridium project and its authorized files. This notice should be read together with applicable copyright and other intellectual-property law; local law may determine the precise scope and enforceability of particular provisions.
