Dakna

Planet Properties

A planet of eternal sandstorms, famous for its toxicity and secrecy. Most civilization exists underground and relies on bioluminescent plants for survival needs. Cities are centered around naturally occurring caverns and tunnels within the darkness, and precautions are taken to minimize the toxicity of the environment.

Dakna possesses an incredibly advanced level of technology that is not known by most of the universe due to the secrecy of the people of Dakna. Very few leave the planet, and even fewer visit and return.

Covered in thick clouds, the surface is too dark for human eyes. Dakna's distance from its star makes it so that its only heat source is from underground magma, making the outer temperatures freezing 24/7. The entire planet is covered in jagged rocks and sand.

• rocks appear to be brittle and layered

• mainly low rock formations, occasional cliffs and valleys with caves that lead to the underground chambers

• rock formations seem to resemble plant life in some locations

• Some buildings stick out onto the surface, triangular shapes blended into the rocks to avoid the wind

Dakna has an intricate network of caves running underground which connect everything together. Larger caves connect large cities and are well maintained. Some have rails for bullet-train like transportation vehicles. Most caves have jagged rock formations that resemble limestone caves. Some of the less used caves have twisting rock patterns, making travel difficult. All caves have several security cameras and sensors installed to keep track of accidents and cave-ins.

In more dangerous or less used locations, walls are ranforced with spines/plant roots/nets.

Note: some caves and passageways are purposely not carved/paved to discourage visitors.

General

Dakna's underground tunnels are mainly covered in bioluminescent or transparent plants, usually resembling the moss or succulents on Earth. There are extensive networks of caves full of plants and rivers, and civilization usually exist underneath the roots.

Fairy's Footsteps

The Fairy's Footsteps is a clover-like plant that grows on moist surfaces, and glows a pale white color. It spreads through spores that are stuck onto the feet of people and animals, making the foot-shaped patches seem as if they emerged out of thin air. The plant grows relatively quickly, about 5 minutes after the spores have been placed on to the ground. 

Takan 

A bamboo like root that can be split apart into fine threads. It is often used to weave clothing and is known to be strong and durable. Fabric woven from this material is a dull beige color, which is then bleached or dyed a darker shade of grey. Colors don't really matter and the Nann are colorblind anyway.

Kana

A plant that absorbs nutrition from the air around it, making soil unnecessary. It usually has a grey/transparent appearance (doesn't glow), but will change colors to a purple/pink depending on the toxicity of the air. 

Inspo: Tillandsia

The "light layer" is a layer of caves above civilization that is covered in plants. These layers often glow a brilliant pale white color due to the bioluminescent plants and have streams running through them. The central pillars of each city takes water from the streams, filters it, and then transports it to individual buildings below. The plant roots also function as a support for the soil above civilization.