| “ | Ravaged by thousands of years of high-intensity gamma radiation, this region of the planet is now a veritable hellhole of radioactive ash and decrepit, mutated flora. Move with great care, and pay particular attention that you maintain full detox procedure upon return. |
| — Ingame description |
The Radioactive Exclusion Zone is one of the biomes of Hoxxes IV. They usually have big open spaces, connected by wide tunnels. The Radioactive Crystals, while dangerous, do produce light. The caves themselves are generally empty with very few living things around. The rock forming the caves is sturdy, meaning it takes 3 hits to destroy it.
Hazards
The biome-specific hazard for the Radioactive Exclusion Zone are Radioactive Crystals called Volatile Uranium, which irradiate anyone who get too close and slowly eats away at health. It can be destroyed by directly hitting its light source with the appropriate weapon or simply smashing it with a pickaxe. There are also Spider Webs which, when passed through, will cover the player in webs, reducing movement speed and placing an effect on the screen that obstructs vision. As always, webs can be burned with a Flamethrower.
Enemies
Several enemies have a unique radioactive-themed variation that appears instead of their regular counterpart. Their attacks are also affected, with some such as Glyphid Exploders, Glyphid Praetorians and Glyphid Swarmers leaving behind clouds of radiaction when killed. Radioactive Exclusion Zone enemy variants can be far more resistant to radiation than creatures found elsewhere on Hoxxes. Most enemies can be encountered in the Radioactive Exclusion Zone, including Spitball Infectors, Cave Leeches and Glyphid Dreadnoughts.
Biome Features
The Radioactive Exclusion Zone contains sparse and highly irradiated flora, along with dead trees. The Cave Vine unique to this biome, while creepy, are harmless and will at most be a mild nuisance.
| Item | Type | Description |
|---|---|---|
| Functional | ||
 Volatile Uranium |
Hazardous | Highly active uranium crystals, will damage anything that approaches it. Can be disabled by attacking the crystal's center. |
 Spider Web |
Hazardous | Temporarily slows down and impairs the vision of any players running into it, can be burnt with a Flamethrower. |
| Other | ||
 Breather |
Neutral | Strange mouth mutation of flora, seems to breathe aimlessly. |
 Radipuff |
Neutral | Mutated result of a puffy flower. |
 Inert Uranium |
Neutral | An exhausted uranium crystal, no longer poses any danger. |
 Tumorous Growth |
Neutral | Highly mutated tumors embedded into the cave's surfaces. |
 Rock-Tree |
Neutral | A fossilised tree that shatters when mined. |
Ores
As with every biome, some of the Ores that can be found in the Radioactive Exclusion Zone are determined by the mission type, such as Morkite and Aquarq.
The crafting materials found in the Radioactive Exclusion Zone are 
Umanite and 
Enor Pearl, with Umanite being abundant and Enor Pearl being scarce.
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