Difference between revisions of "Stat zero"

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:''"Brainless" redirects here. If you were looking for the [[monster intelligence]] category, see [[:Category:Brainless intelligence]].''
 
  
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When one of a character's primary [[attributes]] ([[strength]], [[intelligence]], or [[dexterity]]) is lowered to 0 or below, the character suffers crippling penalties until that attribute is raised above 0 again.
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When one of a character's primary [[attributes]] ([[strength]], [[intelligence]], or [[dexterity]]) is lowered to 0 or below, the character is [[slow]]ed until the stat is raised above zero.
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==Effects==
 
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The following effects occur when any stat reaches 0:
 
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*You immediately suffer 2-4 turns of [[paralysis]], which ignores a [[Formicid]]'s [[stasis]].
 
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*You are [[slow]]ed until the stat completely recovers.
 
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To remove the negative effects, you must increase your stats above 0 for a period of time equal to: <code>10 + 1d10 + the number of turns it was below 0</code> (Max: 200 turns).
 
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The following effects are dependent on the specific stat which was drained to 0:
 
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===Collapse (Strength)===
 
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*You do not regenerate [[HP]] when monsters are in sight.
 
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===Brainless (Intelligence)===
 
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*You can't memorise or cast [[spell]]s.
 
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*You fail to read [[scroll]]s.
 
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===Clumsy (Dexterity)===
 
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*Your base [[EV]] score is set to <code>2 + size_bonus</code>.
 
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*Your [[SH]] score is set to 0.
 
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*Your [[stealth]] score is set to 0.
 
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*You can't [[stab]] monsters.
 
  
 
==Causes==
 
==Causes==
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The following sources of '''stat drain''' can all temporarily lower your attributes ([[Str]], [[Int]], [[Dex]]):
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Stats can be lowered by the following means, potentially causing stat zero:
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*[[Mutations]] (such as from [[Malmutate]] or [[Corrupting Pulse]]) which affect attributes. This lasts until the mutation is removed [[potion of mutation|somehow]].
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'''By 1 at a time:'''
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*Equipment with negative stat modifiers. You can remove the equipment to restore the stat.
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*The [[bad mutations#Deterioration|Deterioration]] mutation.
 
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*The melee attacks of certain monsters:
 
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**{{monsterlink|Quasit}} (dexterity only)
 
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**{{monsterlink|Ghost moth}}
 
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**{{monsterlink|Eidolon}}
 
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**{{monsterlink|Pandemonium lord}} (very rarely)
 
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**Note that these enemies may have faster speeds or multiple stat draining attacks, which can result in losing stats multiple times per turn.
 
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*Decomposition from attempted [[mutation]] of an undead character.
 
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'''By more than 1 at a time:'''
 
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*[[Corrupting Pulse]] can give transient (temporary) mutations, which can include [[Bad_mutations#Reduced_Attributes|Reduced Attributes]] (-2 stat). This is ''technically'' not stat drain, but functions nearly identically (temporary stat loss that is cured through XP gain)
 
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**{{monsterlink|Wretched star}}
 
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*[[Hell's mystical force]] can drain up to 5 stat points when you descend down a stair, and can also give transient mutations.
 
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*Mummy [[death curse]]s drain from 1-4 of a random stat.
 
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*Quaffing an unidentified [[potion of degeneration]] drains 1-3 of each stat.
 
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*[[Throw Klown Pie]] can drain 1-3 of each stat.
 
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**{{monsterlink|Killer Klown}}
 
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*Stepping on or being in view of a monster stepping on [[Zot trap]]s, which could drain 1-5 stat points.
 
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As you gain experience, you regain stats lost through temporary drain or mutation.
 
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Stats can be more permanently lowered by the following means:
 
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*[[Mutations]] (such as from [[Malmutate]]) which affect attributes. This lasts until the mutation is removed [[potion of mutation|somehow]].
 
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*Equipment with negative stat modifiers. But, you can remove the equipment to restore the stat.
 
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==Precautions==
 
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Any character with a particularly low attribute should be aware of the dangers involved. Any attribute below 6 could conceivably be reduced to 0 by a single unfortunate effect, and below 11 are vulnerable to stat zero from repeated effects.
 
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Specifically, [[Hell]] effects can reduce an attribute by up to 5 in a single go, while [[Zot trap]]s, and [[mummy]] [[death curse]]s reduce up to 4. You may wish to bring all of your attributes up to a minimum of 9 to guarantee that you can survive two worst-case scenario effects from the latter. All three happen reasonably late in the game, so early level ups should not take stat zero into account (unless you find a great stat-reducing artefact).
 
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Outside of the extended game, stat zero only realistically happens to the extreme end of combinations, such as a [[Minotaur]] [[Berserker]] or [[Deep Elf]] [[Conjurer]]. A [[human]], for example, is normally much less vulnerable to its effects.
 
  
 
==History==
 
==History==
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{{CBA|0.33|stat drain will be removed. Having a stat at 0 or below just gives the player permaslow so long as it is below 0. Once it is above 0 again, they are completely fine.}}
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*Prior to [[0.33]], hitting zero in any stat would [[paralyse]] the player immediately and apply a unique debuff for as long as you remained below zero, with the specific penalty depending on which stat was affected. See [http://crawl.chaosforge.org/index.php?title=Stat_zero&oldid=82086 this revision] for more information on the old stat zero system.
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**Stat drain was removed in 0.33, meaning players can now only have their stats reduced to zero or less through [[mutation]]s or [[artefact]]s with stat penalties.
 
*Prior to [[0.28]], zero intelligence only had an 80% chance to fail reading scrolls. Zero strength's -Regen was a flat regen/4 modifier.
 
*Prior to [[0.28]], zero intelligence only had an 80% chance to fail reading scrolls. Zero strength's -Regen was a flat regen/4 modifier.
 
*Prior to [[0.19]], [[sustain attributes]] existed which would halve stat damage. Hence, multi-point stat damage was roughly halved in [[0.19]].
 
*Prior to [[0.19]], [[sustain attributes]] existed which would halve stat damage. Hence, multi-point stat damage was roughly halved in [[0.19]].

Latest revision as of 09:36, 13 October 2025

Version 0.33: This article is up to date for the latest stable release of Dungeon Crawl Stone Soup.

When one of a character's primary attributes (strength, intelligence, or dexterity) is lowered to 0 or below, the character is slowed until the stat is raised above zero.

Causes

Stats can be lowered by the following means, potentially causing stat zero:

  • Mutations (such as from Malmutate or Corrupting Pulse) which affect attributes. This lasts until the mutation is removed somehow.
  • Equipment with negative stat modifiers. You can remove the equipment to restore the stat.

History

  • Prior to 0.33, hitting zero in any stat would paralyse the player immediately and apply a unique debuff for as long as you remained below zero, with the specific penalty depending on which stat was affected. See this revision for more information on the old stat zero system.
    • Stat drain was removed in 0.33, meaning players can now only have their stats reduced to zero or less through mutations or artefacts with stat penalties.
  • Prior to 0.28, zero intelligence only had an 80% chance to fail reading scrolls. Zero strength's -Regen was a flat regen/4 modifier.
  • Prior to 0.19, sustain attributes existed which would halve stat damage. Hence, multi-point stat damage was roughly halved in 0.19.
  • Prior to 0.17, taking further stat damage after a stat reached 0 would inflict HP damage.
  • Prior to 0.15, items had mass, and strength determined your carrying capacity. Collapse seriously reduced this.
  • Stat zero was added in 0.13, replacing stat death.
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