Material - The Prime Plane

** The Material Plane is Terrainia and as such it is focus of the rest of this database **

Terrainia and its orbiting suns and moons, exist in a vast open realm of space, millions of rocks float aimlessly around, but nothing else holds life. Along with the Astral Plane (Theorum) and the Mirror Plane (Etherium) it comprises the Mortal Plane, so called as these are the planes where mortal life exists, life elsewhere is not considered to be mortal.

In an age long since passed, the gods themselves walked upon the mortal plane, shaping the world as they saw fit. Now left in the hands of their creations, the world is left to fend for itself.


Planar Sphere: Mortal Planes

The Prime Material Plane
      - Where all mortal beings exist

Form: Planetoid in vast expanse of space
Gravity: Normal
Passage of time: Normal - Linear
Day Length: 24 Hours
Daylight Share: 30-60%
Climate: Varied

The material plane to mortals is the planet Terrainia, although it goes by many names. It is similar to Earth, it has bodies of water, land masses, areas that are hot, cold and areas that cycle through from hot to cold as the time of the year passes.

The biggest difference between Terrainia and Earth is that Terrainia is stationary, its gravity created by The Void itself. The two suns and 5 moons orbit the planetoid equally unable to escape the pull of the void in the centre.

Orbiting Bodies

Orbiting Sun The Crimson Star / Volcanis
Orbiting Sun The Blue Giant / Fulmin
Orbiting Moon Blue Moon / Aquaila
Orbiting Moon White Moon / Arrillis
Orbiting Moon Hazel Moon / Theyran

To most mortals the orbiting bodies are just the suns and moons, the suns bringing light and warmth, the moons reflect moonlight and affect the tides, weather and earth.

But these are the Material Plane reflections of the elemental planes, just in view through the sheer power each contains.

Planar Image

Planar Diagram

Artwork of Terrainia

The plane page was last updated on the 19th Oct 23.
The Material database entry was last updated on the 17th Sep 23.


Terrainia started off in 2004 as a single island for a role-playing game (using a well-known and popular third edition rule set). This island became wonderfully detailed, players would recognise who they were dealing with when suitable miniatures (made by another well-known table-top games company) were placed on the table. But eventually the players finished the campaign, and managed to slay the dragon, or so they thought.

So with the campaign over, but the desire to continue burning ever bright, further areas were designed and planned, and over the course of five long but enjoyable years the world grew exponentially. At its peak of these five years there were six regular groups, around forty players, two dungeon masters, and a world as large as Earth drawn up and with huge levels of detail.


While that is where Terrainia was born, now twenty years on and the development hasn’t stopped, we began to construct this website in 2010 as a resource for our players to use, then in 2020 (during the world wide pandemic) our founder took the opportunity to flesh out the world even more and add this to the website during which thoughts turned to sharing Terrainia with the rest of the world.

It was at this time that the founder began to commission artists, budgets were low, it took time to find the right artists with the right style, but over the next few years the main cast got made, the deities, the primary heroes and villains, then monsters. it was important for the founder that all artwork was theirs, monster design was theirs, and in turn game systems were theirs, we did not want to copy or reproduce existing systems

Along with the game world, contributors are writing novels and designing games, all set within Terrainia, at the time this page was last updated there is no less than seven different games/books in production, and soon will have link to these games/books for you to immerse yourselves within.

So that’s us, we hope you enjoy the site, if you want to give us some feedback why not .


After this first wave of games and books who knows? but one thing for sure is there is plenty of material and our aim will be to share this world with as many fantasy fans as possible.

CREDITS Info coming soon
TERMS OF USE Info coming soon
Illustrations, website & content © Terrainia 2024
Published by Altered Dimension

Any similarity to any game system or published content is coincidence.
Permission is granted for personal use only.