Today I was playing Fallout 4 when I suddenly found a legendary enemy which dropped a laser rifle with 50 damage per extra case radiation, but then I proved I couldn't see the difference between this laser rifle and a normal rifle.

How does radiation damage work?

  • Please consider adding some screenshots and additional info backing up your comparison to help clarify your question.
    – user122639
    Jan 4, 2016 at 22:34
  • The quotient would be 50/total damage. So if the gun dpes 200 damage + 50 radiation damage, 20% of the damage will be radiation. Radiation is a damage type new to Fallout 4. How it works should not be difficult to answer, if it has not already been asked, before.
    – user106385
    Jan 5, 2016 at 1:12
  • 1
    @Timelord64 actually radiation damage is quite complicated in FO4, especially when it comes to the gamma gun. There's a whole wiki page dedicated to it.
    – l I
    Jan 5, 2016 at 4:06
  • What do you mean you "proved" you "couldn't see the difference"?
    – DCShannon
    Jan 6, 2016 at 23:21

1 Answer 1


All "Irradiated" legendary weapons deal radiation poisoning in addition to their normal damage.

Radiation poisoning (from the wiki) functions exactly like environmental radiation: each 1 point of radiation poisoning reduces max health by .1% (so 50 points of rad poisoning reduces max health by 5%). This gets reflected as actual damage, even if a character is at full health. Moreover, since this directly affects maximum health, this is damage that can't be healed: even legendary enemy mutations or the "resethealth" console command will restore health only up to any limits from radiation poisoning.

  • I'm assuming that ghouls (possible super mutants as well) are actually healed by radiation damage instead? Jan 5, 2016 at 15:45
  • Ghouls have very high radiation resistance, so they are nearly immune to a radiation weapon. Super mutants are immune to radiation poisoning, but not actual radiation damage.
    – Kexlox
    Jan 5, 2016 at 20:04

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .