Intrinsic protection - Revision history

Tmakino: Updated with NetHack 5.0.0 donation amount

2026-06-13T01:27:18Z

Updated with NetHack 5.0.0 donation amount

Umbire the Phantom: why...

2024-10-23T04:04:00Z

why...

Umbire the Phantom: /* Losing intrinsic protection */ potholes

2024-10-23T04:03:37Z

‎Losing intrinsic protection: potholes

Grabiner: /* Strategy */ In 3.6.0 and later, no need to wait to purchase the 9th point of protection

2019-02-07T03:55:35Z

‎Strategy: In 3.6.0 and later, no need to wait to purchase the 9th point of protection

Ray Chason: /* Precise mechanics */ Update for 3.6.0: protection lost to a gremlin is always restored

2018-07-15T16:11:33Z

‎Precise mechanics: Update for 3.6.0: protection lost to a gremlin is always restored

Netzhack: Chance of = probability; chance to = opportunity

2017-08-27T12:57:35Z

Chance of = probability; chance to = opportunity

Testbutt: /* Precise mechanics */ probability of protection gain

2017-05-12T01:40:40Z

‎Precise mechanics: probability of protection gain

36.74.109.89: /* Precise mechanics */

2014-06-21T14:31:17Z

‎Precise mechanics

Bcode: Use Template:Refsrc

2012-09-22T11:43:11Z

Use Template:Refsrc

Tjr: Text replace - "([.,]{{refsrc\|[^{}]*}})([A-Za-z])" to "$1 $2"

2012-09-22T09:36:21Z

Text replace - "([.,]{{refsrc\|[^{}]*}})([A-Za-z])" to "$1 $2"

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 You can gain one or more points of intrinsic protection by doing any of the following:
-* Donating to a peaceful [[aligned priest]] of any alignment in a [[temple]], including a cross-aligned temple or a [[valley of the dead|temple to Moloch]], but not a desecrated temple.
+* Donating to a peaceful [[aligned priest]] of any alignment in a [[temple]], including a cross-aligned temple or a [[valley of the dead|temple to Moloch]], but not a desecrated temple. Guaranteed up to 9 points of intrinsic protection, unlikely after that.
-** Donate at least 400 but less than 600 times your [[XL]]; guaranteed up to 9 points of intrinsic protection, unlikely after that.
+** After [[NetHack 5.0.0]], Donate at least the second suggested amount in the chat prompt (2*''baseline'') but less than 1.5 times that (3*''baseline''). Carrying at most 500 times your [[XL]] will ensure you can buy protection.
 * As a [[Prayer#Favors_and_gifts|favor]] from [[prayer]].
 ** Luck must be at least 6.
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 On the other hand, u.ublessed is modified only by sacrifice, prayer, removing or attempting to wear a helm of opposite alignment, or by eating the ring.
-If you donate at least 400*XL but less than 600*XL gold to a priest, you can execute the code that gives you protection. This happens always if u.ublessed<9, and with a one in u.ublessed chance if u.ublessed < 20.{{refsrc|priest.c|507}} The prayer favor case is largely analogous, but it does not have this limit.{{refsrc|pray.c|972}} In either case, if you already have the protection intrinsic, u.ublessed is incremented by one. If not, you get it, and you gain 2-4 points of protection only if u.ublessed was zero (otherwise u.ublessed is left unchanged). There is an equal probability of gaining 2, 3, or 4 points.
+If you donate the right amount of gold to a priest (between 2*''baseline'' and 3*''baseline''), you can execute the code that gives you protection. This happens always if u.ublessed<9, and with a one in u.ublessed chance if u.ublessed < 20.{{refsrc|priest.c|507}} The prayer favor case is largely analogous, but it does not have this limit.{{refsrc|pray.c|972}} In either case, if you already have the protection intrinsic, u.ublessed is incremented by one. If not, you get it, and you gain 2-4 points of protection only if u.ublessed was zero (otherwise u.ublessed is left unchanged). There is an equal probability of gaining 2, 3, or 4 points.
 Beginning with [[NetHack 3.6.0]], you always gain protection if you previously had protection but lost it to a gremlin. Thus one donation restores all previous protection.{{refsrc|pray.c|611|version=NetHack 3.6.0}}

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 The [[protection racket]] meta-strategy is an approach to purchasing a great deal of divine protection via donating to the priest in [[Mine Town]] early in the game.
 ==See also==
@@ Line 66: / Line 64: @@
 ==References==
 <references/>
 [[Category:Religion]]
 [[Category:Properties]]

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 ** Sacrificing any unicorn on an altar of the same alignment as the unicorn.
 ** (If not chaotic) Sacrificing a member of your own race.
-** Offering an [[identification|identified]] [[cheap plastic imitation of the Amulet of Yendor]] on your own [[high altar]] in the [[Astral plane]].
+** Offering an [[Identification|identified]] [[cheap plastic imitation of the Amulet of Yendor]] on your own [[high altar]] in the [[Astral plane]].
 * Kill a coaligned priest.
 * Put on or remove a [[helm of opposite alignment]].
 * Attempting to put on a [[helm of opposite alignment]] in the quest.
-* Convert yourself to another alignment through [[Altar|sacrifice]].
+* Convert yourself to another alignment through [[sacrifice]].
-* Have your protection stolen by a [[gremlin]].
+* Have your protection stolen by a [[gremlin]]'s [[intrinsic theft]].
 An exception is attempting to convert a [[high altar]] on the [[Astral Plane]] - the god will smite you, but you will not lose your protection.

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 The ability to purchase protection from priests makes donations one of the most common uses for gold, especially gold in very large quantities.
-You may not want to purchase the 9th point of protection from a priest:  if a [[gremlin]] makes you feel vulnerable later, it will be much easier to get your protection back if you only have 8 points of intrinsic protection.
+In Nethack 3.4.3, you may not want to purchase the 9th point of protection from a priest:  if a [[gremlin]] makes you feel vulnerable later, it will be much easier to get your protection back if you only have 8 points of intrinsic protection.
 As unholy water prayer is one of the means of losing intrinsic protection, if you intend to pray to make unholy water, it is a good idea to do so ''before'' purchasing protection.

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 If you donate at least 400*XL but less than 600*XL gold to a priest, you can execute the code that gives you protection. This happens always if u.ublessed<9, and with a one in u.ublessed chance if u.ublessed < 20.{{refsrc|priest.c|507}} The prayer favor case is largely analogous, but it does not have this limit.{{refsrc|pray.c|972}} In either case, if you already have the protection intrinsic, u.ublessed is incremented by one. If not, you get it, and you gain 2-4 points of protection only if u.ublessed was zero (otherwise u.ublessed is left unchanged). There is an equal probability of gaining 2, 3, or 4 points.
 If you eat a ring of protection and "magic spreads through your body" (1/3 chance), the protection intrinsic is set unconditionally and the ring's enchantment is added to u.ublessed.
 Examples:
-* If you bought 15 points of protection and a gremlin then steals it, each time you try to buy protection from a priest you will have a 1/15 chance of reactivating your 15 points of protection.
+* (in [[NetHack 3.6.0]]) If you bought 15 points of protection and a gremlin then steals it, your next donation of 400 times experience level will restore your 15 points of protection.
 * If you bought 15 points of protection and lost it by being [[smite|smitten]] by a god, the next time you buy protection you will have 1 point of protection.
 * If you bought 15 points of protection, lost it by being smitten by a god, AND felt vulnerable from a gremlin attack, the next time you buy protection you will have 2-4 points of protection.

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 Examples:
-* If you bought 15 points of protection and a gremlin then steals it, each time you try to buy protection from a priest you will have a 1 in 15 chance to reactivate your 15 points of protection.
+* If you bought 15 points of protection and a gremlin then steals it, each time you try to buy protection from a priest you will have a 1/15 chance of reactivating your 15 points of protection.
-* If you bought 15 points of protection and lost it from being [[smite|smitten]] by a god, the next time you buy protection you will have 1 point of protection.
+* If you bought 15 points of protection and lost it by being [[smite|smitten]] by a god, the next time you buy protection you will have 1 point of protection.
-* If you bought 15 points of protection, lost it from being smitten by a god, AND felt vulnerable from a gremlin attack, the next time you buy protection you will have 2-4 points of protection.
+* If you bought 15 points of protection, lost it by being smitten by a god, AND felt vulnerable from a gremlin attack, the next time you buy protection you will have 2-4 points of protection.
 == Strategy ==

@@ Line 32: / Line 32: @@
 ==Precise mechanics==
-Technically, protection is split up into two properties: the protection intrinsic (HProtection {{refsrc|Youprop.h|302}} as FROMOUTSIDE) and how much AC you get (u.ublessed).
+Technically, protection is split up into two properties: the protection intrinsic (HProtection {{refsrc|youprop.h|302}} as FROMOUTSIDE) and how much AC you get (u.ublessed).
-The intrinsic determines whether u.ublessed affects your armor class.{{refsrc|Do_wear.c|1610}} It is set by every type of action that can gain you protection, and can only be unset by a gremlin's special attack.
+The intrinsic determines whether u.ublessed affects your armor class.{{refsrc|do_wear.c|1610}} It is set by every type of action that can gain you protection, and can only be unset by a gremlin's special attack.
 On the other hand, u.ublessed is modified only by sacrifice, prayer, removing or attempting to wear a helm of opposite alignment, or by eating the ring.
-If you donate at leat 400*XL but less than 600*XL gold to a priest, you can execute the code that gives you protection. This happens always if u.ublessed<9, and with a one in u.ublessed chance if u.ublessed < 20 <ref>{{sourcecode|Priest.c|line507}}</ref>. The prayer favor case is largely analogous, but it does not have this limit.{{refsrc|Pray.c|972}} In either case, if you already have the protection intrinsic, u.ublessed is incremented by one. If not, you get it, and you gain 2-4 points of protection only if u.ublessed was zero (otherwise u.ublessed is left unchanged).
+If you donate at leat 400*XL but less than 600*XL gold to a priest, you can execute the code that gives you protection. This happens always if u.ublessed<9, and with a one in u.ublessed chance if u.ublessed < 20.{{refsrc|priest.c|507}} The prayer favor case is largely analogous, but it does not have this limit.{{refsrc|pray.c|972}} In either case, if you already have the protection intrinsic, u.ublessed is incremented by one. If not, you get it, and you gain 2-4 points of protection only if u.ublessed was zero (otherwise u.ublessed is left unchanged).
 If you eat a ring of protection and "magic spreads through your body" (1/3 chance), the protection intrinsic is set unconditionally and the ring's enchantment is added to u.ublessed.
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 {{nethack-343}}
-==See Also==
+==See also==
 * [[Protection]]