All Mutations and AddictionsUnstable Isotope
Unstable Isotope
Fallout 76 Mutation
Unstable Isotope
Medium chance to release a radiation blast when struck in melee. Minor damage to player during the radiation blast.
Mutation
Medium chance to release a radiation blast when struck in melee. Minor damage to player during the radiation blast.
Unstable Isotope is a mutation in Fallout 76. It can be gained reliably from the Unstable Isotope Serum.
1 perk and 2 team conditions change what it does.
Unstable Isotope Builds
Level 200+
s8
p1
e3
c7
i15
a7
l15
XP (Heavy weapons/ ap) V.2
Fallout 76 build
Level 300+
s15
p9
e12
c11
i6
a15
l8
Reaperella
Headhunter Scythe build
Level 300+
s8
p15
e4
c1
i7
a15
l6
Turtle's Raider Build
Low Health Energy weapon build
Level 300+
s2
p2
e6
c7
i15
a9
l15
Crafting
Crafting Guerila build
Level 300+
s9
p10
e3
c4
i10
a10
l10
West Tek Grinder
Full Health Guerila/Gunslinger build
Level 300+
s9
p10
e7
c6
i4
a10
l10
Non PA
Commando Sniper build
Level 300+
s5
p15
e6
c6
i5
a8
l8
Commando
TS gauss rifle build
Level 300+
s7
p10
e7
c9
i3
a10
l10
.45, 'cause they don't make a .46
Ghoul, Onslaught, Bulletstorm, VATS build
Level 300+
s15
p7
e9
c10
i10
a1
l4
Ghoul Auto Axe build
Fallout 76 build
Show all 85
builds
Jump into the character build planner with this mutation, plus the perks and conditions you've toggled, already selected, then build the rest of your loadout around it.
Create a build with Unstable IsotopeModifiers
These perks and team conditions change what Unstable Isotope does. Toggle them and watch the effects above update.
Perk
1
Strange In Numbers
lvl
42
Positive mutation effects are +25% stronger if teammates are mutated too.
Condition
Team
Condition
Has Mutated Teammate
Granted by
More Mutations
Adrenal Reaction
Mutation
Bird Bones
Mutation
Carnivore
Mutation
Chameleon
Mutation
Eagle Eyes
Mutation
Egg Head
Mutation
Electrically Charged
Mutation
Empath
Mutation
Grounded
Mutation
Healing Factor
Mutation
Herbivore
Mutation
Herd Mentality
Mutation
Marsupial
Mutation
Plague Walker
Mutation
Scaly Skin
Mutation
Speed Demon
Mutation
Talons
Mutation
Twisted Muscles
Mutation