Table of Contents

Major Planetary Zones

THE HABITUAL BELT

Overview

The Habitual Belt is one of the three Major Planetary Zones of VOI 700 D, following the planet’s terminator line, where perpetual dusk prevails. It stretches around the entire circumference of the planet, serving as the only habitable region for both Exohumans and the Native Tribes.

Unlike the other two Major Planetary Zones, the Desert Side and the Dark Side, which extend toward the poles, the Habitual Belt does not act as a dividing line but rather curves along the twilight zone, creating a narrow band of habitable land where temperatures and conditions are stable enough to support life. It occupies approximately 10% of the planetary surface, covering an area of 14.4 million square kilometers — roughly the size of Russia on Earth.

Climatic Conditions & Geography

The Habitual Belt has a total length of 21,200 kilometers and varies in width between 50 and 110 kilometers, averaging about 80 kilometers. It undulates around the planet and extends continuously around its entire circumference.

From south to north, the Habitual Belt consists of several distinct sections, each differing in climate, geography, and ecology. Each section — except for the pole sections — has a theoretical ‘twin’ on the opposite hemisphere, as proposed by the Twin-Section Hypothesis. While general climatic conditions are expected to be similar, local environmental differences — such as mountain formations, river networks, and tectonic activity—create significant deviations between twin regions.

While the Twin-Section Hypothesis suggests that each Midbelt and Equatorial Section has a mirrored counterpart, this assumption is based on theoretical models rather than confirmed field data. Some regions, such as Revari, have been partially mapped, while others remain entirely uncharted terra incognita. Even in well-documented regions, local terrain variations, water systems, and geological factors create significant regional differences.

For example, Asari and Zilari share an equatorial rainforest climate, while Revari and Zedari are both in the South Midbelt Section, yet only Revari has been partially explored, while Zedari remains a complete mystery. This suggests that while the hypothesis holds in broad strokes, significant regional anomalies exist.

The (Twin-)Sections of the Habitual Belt:

Flora

The unique twilight conditions of the Habitual Belt foster plant species that require minimal light for photosynthesis. The flora varies significantly across sections:

Fauna

The Habitual Belt supports a diverse range of fauna adapted to its twilight conditions:

Native and Exohuman population

The Habitual Belt is the primary settlement zone for the Native Tribes and the only habitable region for Exohumans.

Spreading of the Native Population

Tactical Advice for Dungeon Masters

The Habitual Belt is the most diverse and narratively rich zone of VOI 700 D, offering Dungeon Masters a balance between the known and the unknown. While Exohumans have mapped some regions extensively, others remain unexplored or exist only in fragmented records. This makes the Habitual Belt a flexible setting for storytelling, where Dungeon Masters can incorporate detailed worldbuilding while also introducing unexpected discoveries.

When designing adventures, Dungeon Masters should consider the following key aspects:

Beta Age (2625–2631) – The Era of Settlement and War

The Beta Age is defined by rapid human settlement, early clashes with Native Tribes, and the brutal Great War (2629–2631). The Asari Region in the Habitual Belt is the key battleground and a hotbed of frontier survival.

Gamma Age (starting 2631)

The Gamma Age is defined by strict weapon regulations, black-market trades, and uneasy peace under the Federal Confederation.

The (Twin-) Sections of the Habitual Belt: