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Mutant Cave Fungus

FO76 publicteam xpd.pngFor an overview of the topic, see Cave Fungus.

Mutant Cave Fungus is a consumable item in the Fallout: New Vegas add-on Old World Blues.


Whereas a normal Cave Fungus would reduce radiation, mutant cave fungus adds radiation when consumed and has an appropriate green glow. This item is needed to create Nightstalker Squeezin's, Thick Red Paste, Black Blood Sausage and Battle Brew. They respawn in the named locations every 72 game hours (3 game days).

Survival skill effect

SkillEffectHardcore effect
10+2 HP for 5s-24 FOD 
20+2 HP for 5s-28 FOD 
30+3 HP for 5s-32 FOD 
40+3 HP for 5s-36 FOD 
50+4 HP for 5s-40 FOD 
60+4 HP for 5s-44 FOD 
70+4 HP for 5s-48 FOD 
80+5 HP for 5s-52 FOD 
90+5 HP for 5s-56 FOD 
100+6 HP for 5s-60 FOD 


This is a list of fixed non-random places to find mutant cave fungus (37 total).