World-Building Guide to Deserts
A desert is a vast biome that is known for its extreme temperature. Deserts can either run hot or cold and are usually difficult to inhabit. But deserts are harsh places but they are visually stunning and make for an impressive backdrop to any story.
What is it like in the Desert?
Like I said, deserts are hot or cold. The temperatures are extreme which limits the amount of vegetation which in turn limits the coverage one can get in a desert, leaving the area very exposed to the elements. Rainfall is limited, well below average which means only very durable vegetation and wildlife can survive. It is a harsh landscape but it has its own beauty. The desert can often be very quiet with the limited wildlife and people around.
Hot Deserts
Features of Hot Deserts
Sand Dunes: These are hills made of sand, shaped by the extreme winds.
Plateaus: These are flat areas, usually of rock that have very little vegetation or cover.
Salt Flats: Large areas of salt deposits
Playa Lakes: Temporary lakes that appear during heavy rainfall
Oases: Small areas within the desert that have fertile soil and flourish with vegetation due to a water source.
Canyons: Are deep valleys of rock formed from rivers long dried up or greatly reduced.
Sedimentary Layering: Striped rock that shows off the different layers of rock giving the desert a striped appearance.
Mesas: A mesa is flat elevation of steep sides.
Inselbergs: Isolated rock formations that jut up from the desert floor, formed out of soft rock.
Yardangs: Ridges of rock formed by wind erosion
Mushroom Rocks: Pillars of rock formed over time with bigger heads than their bases
Rocks Commonly Found in Hot Deserts
Quartz: Clear/white/pink and usually smoky or clouded. Quartz feels very smooth like glass and may look like crystal.
Sandstone: Tan/red/yellow/brown-ish in colour. Made of compacted sand, it feels very coarse.
Limestone: Grey/white. Rough to touch and often featuring fossils.
Gypsum: White/Clear/Pink/Grey. Soft with chalk-like texture.
Salt Crystals: White/Clear. Crystal-like.
Meteorites: Often found in deserts. Usually black/grey. Can be both rough or smooth to touch.
Common Plants in Deserts
Prickly Pear Cactus: Greed, waxy pad-like cacti with spins. They grow red/yellow fruit that are edible.
Mesquite Trees: Small twisting trees. The pods are edible.
Agave: A thick-leafed succulent, shaped like a rose full of nectar and water.
Oleander: A shrub with pink or white flowers. Not edible, poisonous.
Chia Seeds: Tiny seeds that are edible.
Date Palms: Tall with long sweeping fronds. The dates are edible.
Jojoba: A shrub that's seeds are edible.
Desert Mallow: Flowering plant of pink blossoms. The leaves and flowers are edible.
Peyote: Small round cactus. Do not eat.
Creosote Bush: A shrub with waxy leaves that can be eaten.
Common Wildlife in a Hot Desert
Snakes
Small rodents
Foxes
Raptors (the birds of prey not the fun kind)
Beetles
Scorpions
Locusts
Coyotes
Camels
Lizards
Tortoises
Surviving a Hot Desert
Shelter: It is imperative to stay out of the direct sun if possible to conserve energy.
Keep an eye out: In the shade, there are other creatures who want to get out of the sun. Venomous snakes, scorpions and other critters could be lying in wait so it is best to make sure your shelter isn't already occupied.
Travel: Moving when it is sunrise or sunset or night is best as it isn't as hot and you waste less energy.
Water: Limit water intake in case your character doesn't reach a water source soon. If there are cactus around, your character may find water within it.
Know your plants: Your character might feel the urge to eat any vegetation they come across if they are hungry and weary. There are edible plants in the desert but there are also poison ones. Your character shouldn't eat any strange plant without knowing what it is.
Getting help: Signalling using something reflective or creating a large symbol might signal for help from above.
Clothes: A character should remember that the desert is hot and dress accordingly. Light, loose clothing is best but the nights in a desert are extremely cold. If your character is modifying their clothes, make sure they remember this.
Cold Deserts
Features of Cold Deserts
Ice Sheets: Unbroken sheets of permanent ice.
Glaciers: Immense sheets of moving ice.
Permafrost: The ground that remains frozen all year round. It is barren and nothing can grow here.
Icebergs: Vast lumps of ice that break off from larger sheets of ice to float in the ocean (and kill Leonardo DiCaprio)
Rocky Outcrops: Exposed rock formations.
Crevasses: Deep cracks in ice sheets and glaciers, very dangerous.
Seracs: Ice formations created where multiple crevasses meet.
Erratics: Large rocks deposited by glaciers seemingly in the middle of nowhere.
Rocks Commonly found in Ice Deserts
Basalt: Grey/Black. Smooth.
Granite: Grey/Pink/White. Coarse to the touch.
Shale: Grey/Black. Smooth and brittle.
Gneiss: Striped with greys/pinks/white. Rough texture.
Schist: Silvery-green. Flaky and layered.
Till: Of many colours. Rough.
Common Vegetation found in Ice Deserts
Lichens: Crusty spots that grow on ice and rocks. Can be edible.
Mosses: Soft green plants that grow in the damp. Some kinds are ok to eat.
Arctic Willow: A shrub. Edible.
Saxifrages: Flowering plants growing in rocky areas. Some are edible.
Bearberry: A shrub. The berries are edible.
Grasses: Grow in tundra areas. Edible.
Wildlife Commonly Found in the Ice Desert
Bears
Foxes
Wolves
Deer
Elk
Walrus
Moose
Reindeer
Seals
Whales
Ice worms (the spice must flow....)
Rodents
Surviving in an Ice Desert
Clothing: Wearing layers is crucial. Base layer, insulation and a waterproof layer. Boots and gloves are a must. But you should dress to be sweating, it is a waste of energy. Stay dry always.
Shelter: You can find or build shelter, especially if the winds are high. If sleeping on the ground, use insulation.
Food/Water: Melting snow and ice is fine, eating snow is bad because it will lower your core temp. The best food to eat in this weather is high in fat to keep your body working to keep warm.
Keeping an eye out: Ice fields can break apart easily, crevasses are lethal.
Flag for help if lost: Flares or fires can attract help so always carry something to spark up a flame or two.















