BUILD YOUR OWN WORLD Like what you see? Become the Master of your own Universe!

Remove these ads. Join the Worldbuilders Guild

Callisto III

Let the neon's drown you in their breath.

Home to air lased with terrible decision-making and beautiful neon sights.


The terrain of this planet is mostly flat, with cities and towns scattered across its surface. The rivers and oceans of Callisto III are of liquid methane, reflecting a shimmery metallic silver shine. One might be unable to see where land and ocean begin, but the mantle of this planet is close to its crust, there is 20 kilometres difference from the surface level to the bottom of the deepest ocean (Olinda). A mountain range travels across the equator (The Great Split), erupting into place 250 years ago, as a result of the shattered iron core. The sights, while mostly a flat planet, are incredibly bright and encapsulating. Getting the nickname "The Neon", the lights that project from the cities and towns are bright and violent if one is not used to them. When harnessing their star's power over 400 years ago, they realised that the protons actually introduced neon into the soil and water, as a result all the light on the planet became variations of neon.


Neon-seeped soil has created an impact that no one expected. Biological systems had to convert into compensation for the neon, photosynthesis from the sun now processes neon to gain its energy and produces carbon dioxide. The excess of CO2 in the thin atmosphere means most of the species that visit the plant have to wear breathing appearances (unless their biology compensates for the extra CO2). However, over the hundreds of years, permanent residences have evolved to breathe CO2, as opposed to the oxygen-rich air they once had, there are some who are unable to process the CO2 and also wear breathing appearances. Food hasn't changed much for the people who live or visit Callisto III, it still holds all the national value as well as grows the same now it just glows with bright colours. This won't be the weirdest thing some of these people have consumed in their lives.

Ecosystem Cycles

Callisto III has 2 seasons because the rotation and orbit of the planet are long (possibly tidally locked). Spring is the common season for animal and plant reproduction. Winter is when hibernation and migrations take place, while the sun's energy may be connected to the plant it does not keep it warm only bright. Winter is when things come to rest, and spring is when the life of a life cycle takes place. These seasons take place at the same times on opposite sides of the globe, animals will migrate from one spring to the next haveing 2 reproductive periods in the middle of each spring.


8 months of warmth above 15 degrees celsius and 8 months of negative 130 degrees celsius. The climate is pretty stable, there is nothing extravagant or unpredictable about its weather. During the winter months, it rains often, it will drizzle when it isn't raining. In spring the sun warms the methane oceans and rivers, and drys the soil and land in time for winter to come around again.

Fauna & Flora


There is plenty of marine life that lives in the oceans and rivers of Callisto III, shimmering neon colours as they dart through the silver water. These marine lives are small in size, under 10 cemeteries in length due to the depth of the oceans there isn't any ecological benefit to being bigger. Fish with vibrant rainbows of colours and jellyfish that hover in all their deep blue UV. On land, there aren't many animals besides insects, ones with hard exoskeletons that shimmer under the neon lights of the buildings or rocks. Dragonflies and battles find themselves attracted to lands closer to the water, and often are less populated. Food processing in these animals has not changed much, eating on other animals and marine flora like moss and algae.  


When the sun's energy was harnessed and neon started to soak into the soil of Callisto III, plants slowly started to convert their colours. Once bland colours that wouldn't seem out of the ordinary are now alive and energetic, brilliant blues and glowing greens, searing reds and iridescent whites. Flowers are a sight to see, something you can't pass up if you're visiting the planet. Thought, once picked the plants will die in a matter of hours because they are not being constantly revitalised by the neon-seeped soil, feeding their colours and life. Photosynthesis has become a different system to process the soil and gain energy from. Rather than the sunlight that once fed their cells, however, they release carbon dioxide into the atmosphere rather than oxygen.

Natural Resources

Their sun is not the only natural resource they are able to use, however once a long time ago closer to the birth of the plant they had a thicker atmosphere and more oxygen. There were winds and solar energy they were able to utilise.


Birth: Callisto III is a planet that orbits a Main Sequence star, Lycaon. During the star's birth a few worlds formed around Lycaon, Callisto III being one of them. It was one of the last planets to form in the system, however, it was a result of a planetary collision in the inner system which is how it has an iron core rather than made of ice and rock further out from the star. Sitting in its star's habitual zone, plant life sparked over billions of years, once people found this planet they inhabited such a place. Over the next 500,000 years, they were able to build the planet up into a functioning world with a solid foundation.     Star's power harnessed: After 2 million years, the planet was starting to cool down a lot faster than expected (probably sure to the makeup of the core from the collation). With some fast technological advancements, the planet was able to harness the energy of Lycaon, this enabled the planet to continue to function with regulated energy input.   Everything turned neon: Within a couple of years of harnessing the star's power, due to the nuclear fusion taking place within the star's core started to turn the planet neon. The plants, water and insects all started to gradually become more and more neon. This was a major shifting point in the history of Callisto III, and what shapes its marketability now.   Evolution into the safe haven it is now: Once things started to turn neon, for a period of time there were only a few thousand people who lived on the planet. These occupants tried to keep the system moving and make sure that with the chemical change to the soil, food and water that they could adapt and keep the inhabitants safe from toxins. One of these people where Ox, the now owner of Apollo Square the main city of the planet. Over time Ox rose in power and eventually was the main man. It's believed that over 5,000 years he was able to build the planet up to a new and improved thriving place and start building cities and bringing in traffic from all over the solar system. However, in the early period of this reign (1,200 years) the core of the planet shattered.   Core shattered: Something like the core of a planet cooling at the rate this once was is an obvious issue, however, once the energy of the star was harnessed it wasn't something the occupants monitored as closest, a little more occupied with the growing neon issue. Around 3,500 years after the energy of the stars was harnessed a series of massive earthquakes and tsunamis happened, and the core of the planet was shattering. This caused a massive rebuild of the ecosystem and readjusting climate. But over time it was able to find an equilibrium and Ox was able to bring the plant back to its new feet.


Those who visit Callisto III never stumble upon this neon planet, they seek it out. Known through the grapevine of criminals and their assailants. Seeking refuge without judgment or fear of being found/arrested, Callisto III is a haven for all kinds of criminals---no questions asked. Commonly, newer visitors are eager to see the renowned Apollo Square. Known for its handsome city life and glamorous hotels, nothing makes a criminal's mind tick more than bright colours and loud sounds. Seasoned visitors will venture to quieter towns and cities around the globe, some even have yearly rented houses near The Great Split.
Alternative Name(s)
The Neon
Included Locations

Remove these ads. Join the Worldbuilders Guild

Guild Feature

Display your locations, species, organizations and so much more in a tree structure to bring your world to life!


Please Login in order to comment!