In 7 Days to Die, biome progression structures exploration by linking survival to environmental hazards like extreme heat or cold. To withstand these harsh weather conditions, players complete a series of challenges tied to each specific region. Finishing these challenge chains unlocks recipes for protective gear that shields characters from environmental damage. While working toward these upgrades, survivors can craft short-term items that provide brief protection against severe weather.

Pine Forest

The starting biome where all players spawn upon creating or joining a world. Progression begins here by establishing basic survival gear and working with the local merchant, Trader Rekt, who specializes in food, seeds, and farming supplies. Completing quest tiers for Trader Rekt unlocks the route to the next biome.

Burnt Forest

A charred landscape filled with soot, dense smoke, and smoldering embers. This region poses early environmental dangers due to smoke-induced suffocation and poor visibility, but offers valuable coal and nitrate resource nodes for early to mid-game progression. The local merchant is Trader Jen, who specializes in medical supplies and chemicals.

Environmental Hazard: Ash and Smoke Suffocation

Challenges

Recipes

Item	Ingredients	Description
Black Lung Serum	5x Coal 20x Plant Fibers 5x Mushrooms 1x Water	Grants 5 minutes of smoke protection and +10% run speed in the Burnt Forest
Smoke Gear	1x Armor Crafting Kit 20x Scrap Polymers 20x Cloth Fragment 10x Leather 50x Coal	Grants permanent immunity to Burnt Forest environmental hazards

Desert

An arid, sun-scorched environment characterized by extreme heat, sandstorms, and scarce water sources. The region contains abundant oil shale and aloe vera deposits, but requires protection against heat stroke to navigate safely. The local merchant is Trader Bob, who specializes in vehicles and automotive/mechanical tools.

Environmental Hazard: Extreme Heat

Challenges

Recipes

Item	Ingredients	Description
Sunstroke Tonic	5x Aloe Vera Leaf 5x Oil Shale 5x Mushrooms 1x Water	Grants 5 minutes of heat protection and +10% run speed in the Desert
Desert Gear	1x Armor Crafting Kit 20x Scrap Polymers 20x Cloth Fragment 10x Leather 2x Lens	Grants permanent immunity to Desert environmental hazards

Snow

A freezing mountainous region covered in heavy snow and ice, where hypothermia is a constant environmental hazard. Resources like blueberries and dense lumber are common, but the territory is guarded by dangerous local wildlife and heavy wind chills. The local merchant is Trader Hugh, who specializes in weapons and ammunition.

Environmental Hazard: Freezing Temperatures

Challenges

Recipes

Item	Ingredients	Description
Scorcher Stew	5x Blueberries 5x Raw Meat 1x Can of Chili 1x Beer	Grants 5 minutes of freezing protection and +10% run speed in the Snow
Snow Gear	1x Armor Crafting Kit 20x Scrap Polymers 20x Cloth Fragment 10x Leather 50x Cotton	Grants permanent immunity to Snow environmental hazards

Wasteland

A highly dangerous, irradiated landscape consisting of urban ruins, active landmines, and toxic fallout. This maximum-difficulty tier contains the most valuable loot in the game but remains inaccessible without constant protection against high levels of radiation. The local merchant is Trader Joel, who specializes in high-grade armor.

Environmental Hazard: Radiation Fallout

Challenges

Recipes

Item	Ingredients	Description
Fallout Flush	5x Yucca Fruit 1x Ear of Super Corn 5x Radiated Mushrooms 1x Bottle of Acid	Grants 5 minutes of radiation protection and +10% run speed in the Wasteland
Radiation Gear	1x Armor Crafting Kit 20x Scrap Polymers 20x Cloth Fragment 10x Leather 10x Forged Steel	Grants permanent immunity to Wasteland environmental hazards