Difference between revisions of "Stat zero"

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When one of a character's primary [[attributes]] ([[Strength]], [[Intelligence]], or [[Dexterity]]) is lowered to 0 or below, the character will suffer some important penalties until that attribute is restored, and stays above 0 for a period of time equal to: 10 + 1d10 + the number of turns it was below 0 (capped to 200 turns).
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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.
  
 
==Causes==
 
==Causes==
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The following can all drain your attributes:
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Stats can be lowered by the following means, potentially causing stat zero:
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*By 1 at a time, and affected (and thus blocked) by [[sustain abilities]]:
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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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**The [[bad mutations#Deterioration|Deterioration]] mutation. Rank 1 can generally be kept in check by your natural regeneration; ranks 2 and 3 of this mutation are eventually lethal, however.
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*Equipment with negative stat modifiers. You can remove the equipment to restore the stat.
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**[[Sickness]]
 
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**The special attacks of certain monsters ([[brain worm]]s, [[quasit]]s, [[shadow]]s, etc.). Although all three stats can be drained, INT is by far the one most commonly affected.  This is because it is drained by a smite-targeted spell, where the others are drained only through melee attacks.
 
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**Decomposition (not to be confused with [[rotting]]) from attempted [[mutation]] of an undead character.
 
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*By more than 1 at a time, but damage can be halved by [[sustain abilities]]:
 
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**Evoking certain items, such as a [[crystal ball of energy]] or the [[staff of Wucad Mu]].
 
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**Spell [[miscast effect]]s, as caused by actual miscasts, [[Hell]] effects, and [[Zot trap]]s.
 
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**Certain spells, such as [[Summon Horrible Things]] or [[Alistair's Intoxication]], have a chance of draining INT when cast.
 
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*By varying amounts, and not affected at all by sustain abilities:
 
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**Equipment with negative stat modifiers (but you can remove the equipment to restore the stat).
 
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Stats can be more permanently lowered by the following means:
 
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*[[Mutations]] which affect attributes (directly, or through stiff/loose muscles, some scale mutations, etc.).
 
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*The [[Deck of wonders#Focus Card|Focus]] card.
 
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*[[Jiyva]]'s stat shuffling.
 
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*The [[Shuffle#Shuffle Card|Shuffle]] card.
 
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The last two will never lower a base stat to zero.
 
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==Effects==
 
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There are three different [[status effect]]s depending on which attribute has reached 0:
 
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===Collapse===
 
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It happens when your strength is 0 or less:
 
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*The speed of all your actions is halved (stacks with other stats' speed penalties)
 
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*Your [[regeneration rate]] is divided by 4
 
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*Your carrying capacity (calculated with str=0) is halved
 
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===Brainless===
 
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It happens when your intelligence is 0 or less:
 
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*The speed of all your actions is halved (stacks with other stats' speed penalties)
 
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*You can't read [[book]]s
 
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*You can't cast [[spell]]s
 
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*You will fail to read [[scroll]]s 4 of every 5 times
 
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===Clumsy===
 
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It happens when your dexterity is 0 or less:
 
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*The speed of all your actions is halved (stacks with other stats' speed penalties)
 
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*Your [[evasion]] is set to 2 + size_bonus + [[Phase Shift]] bonus + [[Repulsion field]] bonus
 
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*Your [[stealth]] is set to 0
 
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*You can't [[stab]] monsters
 
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When a stat reaches 0, you will suffer 2 to 5 turns of [[paralysis]]. Losing stat points from a stat that is already below 0 also inflicts some HP damage: 4 + 1d(max hp/10)
 
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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 8 could conceivably be reduced to 0 by a single unfortunate effect, some of which are common, some less so.
 
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*Cursed equipment can reduce an attribute by up to 6 for as long as it's equipped, so be cautious about wearing unidentified items if you're at risk.
 
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*Miscast effects, Hell effects, [[Zot trap]]s, and [[mummy]] [[death curse]]s can temporarily reduce an attribute by up to 7. You may wish to bring all of your attributes up to a minimum of 8 to guarantee that you can survive a single worst-case scenario shot from either one. Alternatively, you could eat a [[royal jelly]] to restore all attributes instantly. Just remember that "Engorged" characters cannot eat any further.
 
  
 
==History==
 
==History==
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[[Stat death]] was removed in [[0.13]].
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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.
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*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.
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*Prior to [[0.19]], [[sustain attributes]] existed which would halve stat damage. Hence, multi-point stat damage was roughly halved in [[0.19]].
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*Prior to [[0.17]], taking further stat damage after a stat reached 0 would inflict HP damage.
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*Prior to [[0.15]], items had [[aum|mass]], and strength determined your carrying capacity. Collapse seriously reduced this.
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*Stat zero was added in [[0.13]], replacing [[stat death]].
  
 
[[Category:Stats]]
 
[[Category:Stats]]
 
[[Category:Status effects]]
 
[[Category:Status effects]]

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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