The Underdark The Time of Troubles & Era of Upheaval We would like to welcome you to our homebrewed Forgotten Realms campaign setting. Inspired By Ed Greenwood

The Underdark is the enormous system of subterranean caves, caverns, and tunnels located beneath the surface of Abeir-Toril. The Underdark is not one giant cavern under Faerûn, but rather many huge networks of caverns and caves. As a result, it is not always possible to travel from one end of the Underdark to the other.

The Underdark was divided into several domains that are similar to continents of the world above. While it is possible to travel from one place to another within a domain, separate domains tend to have very few passages linking them. The major domains of the Underdark are the Buried Realms, the Darklands, the Deep Wastes, the Earthroot, the Glimmersea, Great Bhaerynden, the Northdark, and Old Shanatar.

The Underdark's underground landscape varies from small subterranean fissures almost impossible for adventurers to crawl through to more conventional caves and caverns. But there are also wide expanses of deep water in which coral caves grow, blocks of ice that creatures hollowed out and dwelled inside, and cave-like spaces within masses of fungus or bone or else supported by bubbles of magical force.

This varied landscape is as dynamic as the surface of Abeir-Toril. Some areas are always changing over time because of underground magma rivers or the emptying of underground lakes due to cracks in the rock formed by earthquakes. This means maps of the Underdark were highly unreliable.

The Underdark's environment varies vastly from the surface world, making adventuring through it a dangerous expedition. Just like trekking through a desert, adventurers traversing the Underdark's passages need to be well prepared.

The Underdark is mainly without any source of light save for the occasional luminous rocks or fungi. Large portions of it are also without food or water, making well-stocked food supplies a must-have when exploring uncharted terrain underground. Lack of light combined with a tomb-like silence makes traveling something only for the strong-hearted. The nerve-wracking silence makes even experienced adventurers grow agitated.

Just like deep dungeons, the air can grow stale and even poisonous in the Underdark. It can contain explosive gases from underground volcanic activity or other deadly gases bubbling out of deep fissures in the rock. Bad air and poisonous fumes can collect in portions of tunnels and caves more or less isolated from the main vaults and caverns. Siphon-like tunnels holding water can also trap these gases for a long time.

The temperature underground varies according to depth and the proximity of thermal activities in the area. Throughout the year, the temperature remaines stable and moderate in most regions, usually slightly clammy or chilly. The water underground is extremely cold and posed a hypothermia risk.

The Underdark is inhabited by many races, including aboleths, beholders, cloakers, derro, drow, duergar, dwarves,illithids, kuo-toa, quaggoths, rock gnomes, svirfneblin and many other races and creatures. Plant life and animal life can be as varied underground as on the surface, ranging from small insects to hook horrors, black dragons or shadow dragons, which set up their realms deep down. Anything can be expected.

Plant life is unable to utilize sunlight as a source for energy, and thus takes on strange forms adapted to life underground. Many fungi are also found underground. Being unable to digest normal nutrients most of the time, they rely on absorbing faerzress for their energy.

Notable Locations
• Menzoberranzan
• Mantol-Derith
• Velkynvelve