Fallout 4

Fallout 4

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Was there an update today? Decontamination arch now removes ALL radiation!
I've been using a decontamination arch for in the game a couple of months irl. The issue has always been that it leaves a single point of radiation, no matter how many times in a row I step back and forth through it. This has been discussed here a number of times. But today I have twice been surprised to find that I have all of my health points after I've gone through the decontamination arch just once.

I am not complaining :steamhappy: .

I suspect that there has not been a super secret update today, so I am thinking that the math that the game does to figure everything out has denied us all the elimination of that one last point of radiation due to some sort of rounding error. I hit level 110 yesterday, and maybe that factors into the math. I wonder if at my next level I will again have a single point of ineradicable radiation?

Anyone else having this good result with their decontamination arches?
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Showing 1-15 of 35 comments
X Jun 16, 2024 @ 3:41pm 
Mine removes all rads and has removed all rads since the day I got FO4.
Well over 4000 hours of play.
sdack Jun 16, 2024 @ 4:01pm 
The issue is a type mismatch between float and integer somewhere in the game's script for removing radiation. As a result can the arch leave a fraction of radiation on the player, which looks like a single point of radiation. This has been fixed with the Unofficial Patch a long time ago.

I very much doubt Bethesda will ever fix this.
Last edited by sdack; Jun 16, 2024 @ 4:01pm
random_frugality Jun 16, 2024 @ 4:02pm 
Originally posted by X:
Mine removes all rads and has removed all rads since the day I got FO4.
Well over 4000 hours of play.

Okay.

As I said, there was a discussion or two about this issue in the recent past. I'm just hoping that it continues, and I am wondering if anyone else who had that one point of radiation issue has noticed a difference in the past couple of days.
Zekiran Jun 16, 2024 @ 4:32pm 
And you are positive that it's RAD damage, and not the molerat disease?
wtiger27 Jun 16, 2024 @ 5:09pm 
Originally posted by X:
Mine removes all rads and has removed all rads since the day I got FO4.
Well over 4000 hours of play.

Same. 4400+ hrs in the game.
RabbitRidge Jun 16, 2024 @ 6:13pm 
If you have taken the Ghoulish perk level 4, that could explain it.
random_frugality Jun 16, 2024 @ 6:38pm 
Originally posted by Zekiran:
And you are positive that it's RAD damage, and not the molerat disease?

Yes, the molerat disease is still there.
random_frugality Jun 16, 2024 @ 6:39pm 
Originally posted by sdack:
The issue is a type mismatch between float and integer somewhere in the game's script for removing radiation. As a result can the arch leave a fraction of radiation on the player, which looks like a single point of radiation. This has been fixed with the Unofficial Patch a long time ago.

I very much doubt Bethesda will ever fix this.

Yes, I figure it's something like that which is related to the math the game does for everything.
random_frugality Jun 16, 2024 @ 6:40pm 
Originally posted by RabbitRidge:
If you have taken the Ghoulish perk level 4, that could explain it.

I don't have that perk.
RabbitRidge Jun 16, 2024 @ 7:04pm 
Only other thing I can think of off the top of my head, whenever I reached a new XP level (adds HP/health) it seemed to work temporally. Probably because of the calculations as previously mentioned (float/integer).

Edit: adding to Endurance could have similar effect. The perk Solar Powered level 2 apparently could also have an impact during the day.
Last edited by RabbitRidge; Jun 16, 2024 @ 7:25pm
dtt.scanner Jun 16, 2024 @ 7:28pm 
mine doesn't seem to work at all. Powered up, spray, but no change in rads. I figured it was just for show, but it was disappointing. No mods, just vanilla with DLC. So you're saying it really is supposed to heal your rads?

I purposefully took about 90% rads to see how fast it would remove them. Not even a budge. Someone mentioned the unofficial patch. Is that required for it to work properly?

If push comes to shove, I can still get into the back door of Hallucigen and use their rad scrubber... it's not far inside that exit.
Last edited by dtt.scanner; Jun 16, 2024 @ 7:33pm
DouglasGrave Jun 16, 2024 @ 7:32pm 
Originally posted by dtt.scanner:
mine doesn't seem to work at all. Powered up, spray, but no change in rads. I figured it was just for show, but it was disappointing. No mods, just vanilla with DLC. So you're saying it really is supposed to heal your rads?
Yes, if you power it, switch it on, and walk through the spray, it should (almost) completely remove your current rads.

I play vanilla, with DLC and some free Creation Club items, but I've never used mods on Fallout 4, and it works fine for me apart from that tiny numerical discrepancy of leaving a fraction of a rad behind.
Last edited by DouglasGrave; Jun 16, 2024 @ 7:34pm
dtt.scanner Jun 16, 2024 @ 7:34pm 
Originally posted by DouglasGrave:
Originally posted by dtt.scanner:
mine doesn't seem to work at all. Powered up, spray, but no change in rads. I figured it was just for show, but it was disappointing. No mods, just vanilla with DLC. So you're saying it really is supposed to heal your rads?
Yes, if you power it, switch it on, and walk through the spray, it should (almost) completely remove your current rads.

I play vanilla, with DLC and some free Creation Club items, but I've never used mods on Fallout 4.


Maybe I wasn't standing in the right spot... I'll try it again. Oh, I do have Solar Powered level 2, and I think it was day outside... so maybe that was causing a glitch.
Last edited by dtt.scanner; Jun 16, 2024 @ 7:36pm
Xenon The Noble Jun 16, 2024 @ 8:23pm 
I've never known the decontamination arch to leave any radiation.
RabbitRidge Jun 16, 2024 @ 8:42pm 
As previously mentioned, using the Unofficial Patch (UFO4P) from Nexus Mods could explain the discrepancies. I play the game solely as the Dev deliverers it on Steam.
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Date Posted: Jun 16, 2024 @ 2:51pm
Posts: 35