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Difference between revisions of "v0.31:Skill"

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{{quality|Fine|23:47, 27 February 2011 (UTC)}}{{av}}
+
{{quality|Exceptional|22:45, 1 May 2011 (UTC)}}{{av}}
 
 
  
 
Skills are used by dwarves to accomplish almost every task.  Higher skills allows dwarves to accomplish tasks more quickly, but also more effectively (for example mining and crafting).  Using a skill will grant '''[[experience]]''' in that skill, allowing the dwarf to reach higher skill levels.
 
Skills are used by dwarves to accomplish almost every task.  Higher skills allows dwarves to accomplish tasks more quickly, but also more effectively (for example mining and crafting).  Using a skill will grant '''[[experience]]''' in that skill, allowing the dwarf to reach higher skill levels.
 
+
To determine what skills a dwarf has, press {{K|v}} and highlight the dwarf, then press {{K|g}} to ensure you are on the general information page. The skills will be grouped in to three toggleable types, {{K|c}}ombat, la{{K|b}}or and {{K|m}}iscellaneous skills. The list will include the level of each skill and a note if it is rusty or very rusty in parentheses if applicable.
Skills now become '''rusty''' and eventually '''very rusty''' after a certain period of time. The exact effects of this are unknown, but skills remaining at "very rusty" for prolonged periods of time will gradually suffer '''permanent''' experience loss.
 
  
 
Skill levels are as follows:
 
Skill levels are as follows:
Line 26: Line 24:
  
 
==Skill penalties==
 
==Skill penalties==
Dwarves that are {{L|Status icon|hungry, tired, or thirsty}} will work slower and produce lower quality goods. For some tasks like wood cutting or furnace operating this is unimportant, but you may wish to halt construction of {{L|aluminum}} {{L|statue}}s, or remove the designation on those diamond or native aluminum clusters if your {{L|blacksmith}} or {{L|miner}} are famished and hollow-eyed from lack of sleep.
+
Dwarves that are [[Status icon|hungry, tired, or thirsty]] will work slower and produce lower quality goods. For some tasks like wood cutting or furnace operating this is unimportant, but you may wish to halt construction of [[aluminum]] [[statue]]s, or remove the designation on those diamond or native aluminum clusters if your [[blacksmith]] or [[miner]] is famished and hollow-eyed from lack of sleep.
  
 
==Skills==
 
==Skills==
Line 35: Line 33:
  
 
{{Skill Box|Miner|7:0|7:0|
 
{{Skill Box|Miner|7:0|7:0|
* {{L|Miner}}
+
* [[Miner]]
 
}}
 
}}
  
{{Skill Box|{{L|Woodworker}}|6:1|6:1|
+
{{Skill Box|[[Woodworker]]|6:1|6:1|
* {{L|Bowyer}}
+
* [[Bowyer]]
* {{L|Carpenter}}
+
* [[Carpenter]]
* {{L|Wood cutter}}
+
* [[Wood cutter]]
 
}}
 
}}
  
{{Skill Box|{{L|Stoneworker}}|7:1|7:1|
+
{{Skill Box|[[Stoneworker]]|7:1|7:1|
* {{L|Engraver}}
+
* [[Engraver]]
* {{L|Mason}}
+
* [[Mason]]
 
}}
 
}}
  
{{Skill Box|{{L|Ranger}}|2:0|2:0|
+
{{Skill Box|[[Ranger]]|2:0|2:0|
* {{L|Ambusher}}
+
* [[Ambusher]]
* {{L|Animal caretaker}}
+
* [[Animal caretaker]]
* {{L|Animal dissector}}
+
* [[Animal dissector]]
* {{L|Animal trainer}}
+
* [[Animal trainer]]
* {{L|Trapper}}
+
* [[Trapper]]
 
}}
 
}}
  
{{Skill Box|{{L|Doctor}}|5:0|5:0|
+
{{Skill Box|[[Doctor]]|5:0|5:0|
* {{L|Bone doctor}}
+
* [[Bone doctor]]
* {{L|Crutch-walker}}
+
* [[Crutch-walker]]
* {{L|Diagnostician}}
+
* [[Diagnostician]]
* {{L|Surgeon}}
+
* [[Surgeon]]
* {{L|Suturer}}
+
* [[Suturer]]
* {{L|Wound dresser}}
+
* [[Wound dresser]]
 
}}
 
}}
  
 
| valign='top' |
 
| valign='top' |
  
{{Skill Box|{{L|Farmer}}|6:0|6:0|
+
{{Skill Box|[[Farmer]]|6:0|6:0|
* {{L|Brewer}}
+
* [[Beekeeper]]
* {{L|Butcher}}
+
* [[Brewer]]
* {{L|Cheese maker}}
+
* [[Butcher]]
* {{L|Cook}}
+
* [[Cheese maker]]
* {{L|Dyer}}
+
* [[Cook]]
* {{L|Grower}}
+
* [[Dyer]]
* {{L|Herbalist}}
+
* [[Grower]]
* {{L|Lye maker}}
+
* [[Herbalist]]
* {{L|Milker}}
+
* [[Lye maker]]
* {{L|Miller}}
+
* [[Milker]]
* {{L|Potash maker}}
+
* [[Miller]]
* {{L|Soaper}}
+
* [[Potash maker]]
* {{L|Tanner}}
+
* [[Presser]]
* {{L|Thresher}}
+
* [[Shearer]]
* {{L|Wood burner}}
+
* [[Soaper]]
* {{L|Shearer}}
+
* [[Spinner]]
* {{L|Spinner}}
+
* [[Tanner]]
* {{L|Presser}}
+
* [[Thresher]]
* {{L|Beekeeper}}
+
* [[Wood burner]]
 
}}
 
}}
  
{{Skill Box|{{L|Fishery worker}}|1:0|1:0|
+
{{Skill Box|[[Fishery worker]]|1:0|1:0|
* {{L|Fish cleaner}}
+
* [[Fish cleaner]]
* {{L|Fish dissector}}
+
* [[Fish dissector]]
* {{L|Fisherdwarf}}
+
* [[Fisherdwarf]]
 
}}
 
}}
  
{{Skill Box|{{L|Metalsmith}}|0:1|0:1|
+
{{Skill Box|[[Metalsmithing|Metalsmith]]|0:1|0:1|
* {{L|Armorsmith}}
+
* [[Armorsmith]]
* {{L|Furnace operator}}
+
* [[Furnace operator]]
* {{L|Metal crafter}}
+
* [[Metal crafter]]
* {{L|Blacksmith|Metalsmith}}
+
* [[Blacksmith|Metalsmith]]
* {{L|Weaponsmith}}
+
* [[Weaponsmith]]
 
}}
 
}}
  
 
| valign='top' |
 
| valign='top' |
  
{{Skill Box|{{L|Jeweler}}|2:1|2:1|
+
{{Skill Box|[[Jeweler]]|2:1|2:1|
* {{L|Gem cutter}}
+
* [[Gem cutter]]
* {{L|Gem setter}}
+
* [[Gem setter]]
 
}}
 
}}
  
{{Skill Box|{{L|Craftsdwarf}}|1:1|1:1|
+
{{Skill Box|[[Craftsdwarf]]|1:1|1:1|
* {{L|Bone carver}}
+
* [[Bone carver]]
* {{L|Clothier}}
+
* [[Clothier]]
* {{L|Glassmaker}}
+
* [[Glassmaker]]
* {{L|Leatherworker}}
+
* [[Glazer]]
* {{L|Stone crafter}}
+
* [[Leatherworker]]
* {{L|Weaver}}
+
* [[Potter]]
* {{L|Wood crafter}}
+
* [[Stone crafter]]
* {{L|Strand extractor}}
+
* [[Strand extractor]]
 +
* [[Wax worker]]
 +
* [[Weaver]]
 +
* [[Wood crafter]]
 
}}
 
}}
  
{{Skill Box|{{L|Engineer}}|4:1|4:1|
+
{{Skill Box|[[Engineer]]|4:1|4:1|
* {{L|Mechanic}}
+
* [[Mechanic]]
* {{L|Pump operator}}
+
* [[Pump operator]]
* {{L|Siege engineer}}
+
* [[Siege engineer]]
* {{L|Siege operator}}
+
* [[Siege operator]]
 
}}
 
}}
  
 
{{Skill Box|Other Jobs|3:0|3:0|
 
{{Skill Box|Other Jobs|3:0|3:0|
* {{L|Alchemy|Alchemist}}
+
* [[Alchemy|Alchemist]]
* {{L|Swimmer}}
+
* [[Knapper]]
* {{L|Knapper}}
+
* [[Swimmer]]
 
}}
 
}}
  
{{Skill Box|{{L|Administrator}}|5:0|5:0|
+
{{Skill Box|[[Administrator]]|5:0|5:0|
* {{L|Appraiser}}
+
* [[Appraiser]]
* {{L|Building designer}}
+
* [[Building designer]]
* {{L|Organizer}}
+
* [[Organizer]]
* {{L|Record keeper}}
+
* [[Record keeper]]
 
}}
 
}}
  
 
| valign='top' |
 
| valign='top' |
  
{{Skill Box|{{L|Military}}|0:1|0:0|
+
{{Skill Box|[[Military]]|0:1|0:0|type=m|
* {{L|Archer}}
+
* [[Archer]]
* {{L|Armor user}}
+
* [[Armor user]]
* {{L|Axeman}}
+
* [[Axeman]]
* {{L|Biter}}
+
* [[Biter]]
* {{L|Blowgunner}}
+
* [[Blowgunner]]
* {{L|Bowman}}
+
* [[Bowman]]
* {{L|Crossbowman}}
+
* [[Crossbowman]]
* {{L|Dodger}}
+
* [[Dodger]]
* {{L|Fighter}}
+
* [[Fighter]]
* {{L|Hammerman}}
+
* [[Hammerman]]
* {{L|Kicker}}
+
* [[Kicker]]
* {{L|Knife user}}
+
* [[Knife user]]
* {{L|Lasher}}
+
* [[Lasher]]
* {{L|Maceman}}
+
* [[Maceman]]
* {{L|Misc. object user}}
+
* [[Misc. object user]]
* {{L|Pikeman}}
+
* [[Pikeman]]
* {{L|Shield user}}
+
* [[Shield user]]
* {{L|Spearman}}
+
* [[Spearman]]
* {{L|Striker}}
+
* [[Striker]]
* {{L|Swordsman}}
+
* [[Swordsman]]
* {{L|Thrower}}
+
* [[Thrower]]
* {{L|Wrestler}}
+
* [[Wrestler]]
 
}}
 
}}
  
{{Skill Box|{{L|Broker}}|3:0|3:0|
+
{{Skill Box|[[Broker]]|3:0|3:0|
* {{L|Comedian}}
+
* [[Comedian]]
* {{L|Conversationalist}}
+
* [[Conversationalist]]
* {{L|Flatterer}}
+
* [[Flatterer]]
* {{L|Intimidator}}
+
* [[Intimidator]]
* {{L|Judge of intent}}
+
* [[Judge of intent]]
* {{L|Liar}}
+
* [[Liar]]
* {{L|Negotiator}}
+
* [[Negotiator]]
* {{L|Persuader}}
+
* [[Persuader]]
 
}}
 
}}
  
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{{Skill Box|Miscellaneous|3:0|3:0|
 
{{Skill Box|Miscellaneous|3:0|3:0|
* {{L|Concentration}}
+
* [[Concentration]]
* {{L|Consoler}}
+
* [[Consoler]]
* {{L|Leader}}
+
* [[Leader]]
* {{L|Observer}}
+
* [[Observer]]
* {{L|Pacifier}}
+
* [[Pacifier]]
* {{L|Student}}
+
* [[Student]]
* {{L|Teacher}}
+
* [[Teacher]]
 
}}
 
}}
  
 
{{Skill Box|Unused|3:0|3:0|
 
{{Skill Box|Unused|3:0|3:0|
* {{L|Balance}}
+
* [[Balance]]
* {{L|Coordination}}
+
* [[Coordination]]
* {{L|Discipline}}
+
* [[Discipline]]
* {{L|Druid}}
+
* [[Druid]]
* {{L|Poet}}
+
* [[Poet]]
* {{L|Reader}}
+
* [[Reader]]
* {{L|Speaker}}
+
* [[Speaker]]
* {{L|Tracker}}
+
* [[Tracker]]
* {{L|Wordsmith}}
+
* [[Wordsmith]]
* {{L|Writer}}
+
* [[Writer]]
 
}}
 
}}
 
|}
 
|}
Line 209: Line 210:
 
*'''Skills''':  
 
*'''Skills''':  
 
**are trained by being used in some activity.
 
**are trained by being used in some activity.
**train '''{{L|attribute}}s'''.
+
**train '''[[attribute]]s'''.
**the same {{L|attribute}} can be trained by various skills.
+
**the same [[attribute]] can be trained by various skills.
**it's assumed that the skills also use some of the {{L|attribute}}s that they train.
+
**it's assumed that the skills also use some of the [[attribute]]s that they train.
**certain skills are required or important for certain {{L|noble}}, {{L|military}} and civilian professions.
+
**certain skills are required or important for certain [[noble]], [[military]] and civilian professions.
 
**certain professions require several skills.
 
**certain professions require several skills.
 
**the same skill can be used by various professions.
 
**the same skill can be used by various professions.
**are increased by {{L|Preferences}}, but capped, so the dwarf will make items beyond it's skill level but won't affect the chances of making more high value items at the highest skill level.
+
**are increased by [[Preferences]], but capped, so the dwarf will make items beyond its skill level but won't affect the chances of making more high value items at the highest skill level.
  
*'''{{L|Personality trait|Traits}}''':
+
*'''[[Personality trait|Traits]]''':
**can not be modified in-game.{{verify}}
+
**cannot be modified in-game.{{verify}}
**affect which {{L|social skill}}s gain experience ''(if the dwarf has X trait it will not gain experience in X skill)'' at all.
+
**affect which [[social skill]]s gain experience ''(if the dwarf has X trait it will not gain experience in X skill)'' at all.
 
**have other in-game effects that can be useful for certain professions.
 
**have other in-game effects that can be useful for certain professions.
**give {{L|thought}}s when performing certain activities.
+
**give [[thought]]s when performing certain activities.
  
 
To summarize it goes like this:
 
To summarize it goes like this:
Line 231: Line 232:
 
   '-->  Profession
 
   '-->  Profession
  
Since the same skills can be used by various professions, and the same {{L|attribute}}s are trained by various skills, this allows for {{L|cross-training}}.
+
Since the same skills can be used by various professions, and the same [[attribute]]s are trained by various skills, this allows for [[cross-training]].
  
Being {{L|Personality trait|traits}} the unmodifiable{{verify}}, limiting factor on which skills can be learned or having useful effects, and certain professions requiring various skills, the need arises to:
+
Being [[Personality trait|traits]] the unmodifiable{{verify}}, limiting factor on which skills can be learned or having useful effects, and certain professions requiring various skills, the need arises to:
 
*avoid appointing a dwarf that will never learn a certain skill to a profession that uses it:
 
*avoid appointing a dwarf that will never learn a certain skill to a profession that uses it:
**''appointing a {{L|Personality trait|straightforward}} dwarf as a {{L|broker}} will result in a {{L|consoler}}, non-{{L|flatterer}}, non-{{L|liar}} {{L|broker}}''.
+
**''appointing a [[Personality trait|straightforward]] dwarf as a [[broker]] will result in a [[consoler]], non-[[flatterer]], non-[[liar]] [[broker]]''.
*appoint a dwarf with an useful effect given by a {{L|Personality trait|trait}} to a profession that benefits from it:
+
*appoint a dwarf with an useful effect given by a [[Personality trait|trait]] to a profession that benefits from it:
**''appointing an {{L|Personality trait|undisciplined}} dwarf to an important job will result in {{L|fun|}}''.
+
**''appointing an [[Personality trait|undisciplined]] dwarf to an important job will result in [[fun|fun]]''.
**''appointing an {{L|Personality trait|angry}} dwarf to {{L|soldier}} will result in more {{L|Status_icon|enraged}} bonuses.
+
**''appointing an [[Personality trait|angry]] dwarf to [[soldier]] will result in more [[Status_icon|enraged]] bonuses.
  
 
The solution comes in the form of a nice sortable reference table:
 
The solution comes in the form of a nice sortable reference table:
Line 245: Line 246:
 
<!--  
 
<!--  
  
There is a certain set of {{L|Social Skills}} that are relevant for a Broker, there are also certain {{L|Personality Traits}} that influence if experience is gained in the skill whatsoever, furthermore there are {{L|Soul Attributes}} that affect the Skills and other Skills that affect the same Attributes {{L|Cross Training}}, the ones relevant for a Broker are as follow:
+
There is a certain set of [[Social Skills]] that are relevant for a Broker, there are also certain [[Personality Traits]] that influence if experience is gained in the skill whatsoever, furthermore there are [[Soul Attributes]] that affect the Skills and other Skills that affect the same Attributes [[Cross Training]], the ones relevant for a Broker are as follow:
  
 
The better match with the table Skills, Traits and Attributes the better Broker the Dwarf will be, try to avoid Traits that halt experience gain for a relevant Skill, otherwise time will be lost training a Dwarf that will never get better a that Skill.
 
The better match with the table Skills, Traits and Attributes the better Broker the Dwarf will be, try to avoid Traits that halt experience gain for a relevant Skill, otherwise time will be lost training a Dwarf that will never get better a that Skill.
Line 272: Line 273:
 
LIBERALISM            - Rebelliousness - ?
 
LIBERALISM            - Rebelliousness - ?
 
MODESTY                - Modesty        -
 
MODESTY                - Modesty        -
ORDERLINESS            - Organization  - bookepper? military?
+
ORDERLINESS            - Organization  - bookkeeper? military?
 
SELF_CONSCIOUSNESS    - Neurosis      - ?/comedian
 
SELF_CONSCIOUSNESS    - Neurosis      - ?/comedian
 
SELF_DISCIPLINE        - Perseverance  - on_break
 
SELF_DISCIPLINE        - Perseverance  - on_break
 
SELF_EFFICACY          - Confidence    - ?
 
SELF_EFFICACY          - Confidence    - ?
STRAIGHTFORWARDNESS    - Honesty        - consoler/flaterer-liar
+
STRAIGHTFORWARDNESS    - Honesty        - consoler/flatterer-liar
SYMPATHY              - Compassion    - healtcare?/?
+
SYMPATHY              - Compassion    - healthcare?/?
 
TRUST                  - Trusting      - ?
 
TRUST                  - Trusting      - ?
 
VULNERABILITY          - Stress        - ?/military??
 
VULNERABILITY          - Stress        - ?/military??
Line 406: Line 407:
 
-->
 
-->
  
==Skills first introduced in version 0.31.01==
+
==Skill Rust==
 
+
Every skill has the following set of improvement and decay counters, which are caste specific:
Combat:
 
 
 
{{L|Fighter}}, {{L|Archer}}, {{L|Striker}}, {{L|Kicker}}, {{L|Biter}}, {{L|Dodger}}
 
 
 
Healthcare:
 
 
 
{{L|Wound dresser}}, {{L|Diagnostician}}, {{L|Surgeon}}, {{L|Bone doctor|Bone Doctor}}, {{L|Suturer}} ''(stitching wounds)'', {{L|Crutch walker|Crutch Walker}} ''(this is for patients rather than doctors)''
 
 
 
Other:
 
 
 
{{L|Misc. object user}}, {{L|Student}}, {{L|Concentration}}, {{L|Observer}}, {{L|Leader}}, {{L|Teacher}},
 
 
 
==Skills first observed in version 0.31.14==
 
Combat:
 
  
{{L|Military tactics}}
+
{{token|SKILL_RATE|c}} (Default is {{token|SKILL_RATE|cr|100:8:16:16}})
 +
* % of improvement points you get (Default 100)
 +
* unused counter cap (Default 8)
 +
* rust counter cap (Default 16)
 +
* demotion counter cap (Default 16)
  
==Skills first introduced in version 0.31.19==
+
Once per day, each skill's "unused" counter increments by 1, and if it reaches the cap (without the skill ever being used), it resets to zero and increments the rust counter. Once the rust counter reaches its cap, it resets to zero, adds a "layer" of rust to the skill (to a maximum of 6), and increments the demotion counter. When the demotion counter reaches its cap, it resets to zero and the skill level is ''permanently'' reduced by 1 (and must be re-earned). With the default numbers, it takes about 4 and a half months before rust sets in, 2 years and 3 months before rust maxes out, and 6 years before actual skill levels begin to decay.
  
Farming:
+
The {{DFtext|Rusty}} and {{DFtext|V.Rusty}} descriptions which are appended to a skill within ''Dwarf Fortress'' are determined by the following conditions:
 +
*Rusty: A skill level greater than 0, and the number of rust layers is at least 50% of the original skill level.
 +
*Very Rusty: A skill level greater than or equal to 4, and the number of rust layers is at least 75% of the original skill level.
  
{{L|Shearer}}, {{L|Spinner}}, {{L|Presser}}, {{L|Beekeeper}}
+
Since a skill can never gain more than 6 levels of rust, only skills between "Skilled" and "Expert" can ever show as "V. Rusty", and only skills at "Master" or lower can ever show as "Rusty" - higher level skills will silently accumulate rust until they are eventually demoted below "High Master", then the rust will become visible.
  
Crafting:
+
Whenever experience is gained, the skill's "unused" counter is reset to zero, its "rust" and "demotion" counters are ''decremented'' by 1, and one or more levels of rust are removed depending on the amount of experience gained:
 +
* 50% of the gained experience (rounded down, plus 1) is lost
 +
* 10% of the lost experience (rounded down, plus 1) is spent toward removing rust
 +
* If it was enough to remove ''more'' rust than was accumulated, then the XP penalty is set to 10 points per remaining rust level, minus 10
  
{{L|Potter}}, {{L|Glazer}}, {{L|Wax worker}}
+
Since most crafting jobs give 30 points of experience, this means it would take 3 jobs to work away 6 levels of rust, each giving only 14 points of experience; if the skill only has 1 level of rust, a single job would work it away without losing any experience.
  
 
{{Skills}}
 
{{Skills}}
 
{{Category|Skills}}
 
{{Category|Skills}}

Latest revision as of 02:27, 15 September 2024

This article is about an older version of DF.

Skills are used by dwarves to accomplish almost every task. Higher skills allows dwarves to accomplish tasks more quickly, but also more effectively (for example mining and crafting). Using a skill will grant experience in that skill, allowing the dwarf to reach higher skill levels. To determine what skills a dwarf has, press v and highlight the dwarf, then press g to ensure you are on the general information page. The skills will be grouped in to three toggleable types, combat, labor and miscellaneous skills. The list will include the level of each skill and a note if it is rusty or very rusty in parentheses if applicable.

Skill levels are as follows:

  • Dabbling
  • Novice
  • Adequate
  • Competent
  • Skilled
  • Proficient
  • Talented
  • Adept
  • Expert
  • Professional
  • Accomplished
  • Great
  • Master
  • High Master
  • Grand Master
  • Legendary

Skill penalties[edit]

Dwarves that are hungry, tired, or thirsty will work slower and produce lower quality goods. For some tasks like wood cutting or furnace operating this is unimportant, but you may wish to halt construction of aluminum statues, or remove the designation on those diamond or native aluminum clusters if your blacksmith or miner is famished and hollow-eyed from lack of sleep.

Skills[edit]

Miner
 
Woodworker
 
Stoneworker
 
Ranger
 
Doctor
 
Farmer
 
Fishery worker
 
Metalsmith
 
Jeweler
 
Craftsdwarf
 
Engineer
 
Other Jobs
 
Administrator
 
Military
 
Broker
 
Miscellaneous
 
Unused
 

Skills, Attributes and Traits[edit]

  • Skills:
    • are trained by being used in some activity.
    • train attributes.
    • the same attribute can be trained by various skills.
    • it's assumed that the skills also use some of the attributes that they train.
    • certain skills are required or important for certain noble, military and civilian professions.
    • certain professions require several skills.
    • the same skill can be used by various professions.
    • are increased by Preferences, but capped, so the dwarf will make items beyond its skill level but won't affect the chances of making more high value items at the highest skill level.
  • Traits:
    • cannot be modified in-game.[Verify]
    • affect which social skills gain experience (if the dwarf has X trait it will not gain experience in X skill) at all.
    • have other in-game effects that can be useful for certain professions.
    • give thoughts when performing certain activities.

To summarize it goes like this:

Trait --> Skill <--> Attribute
  |         ^
  v         |
effect      |
  |         v
  '-->  Profession

Since the same skills can be used by various professions, and the same attributes are trained by various skills, this allows for cross-training.

Being traits the unmodifiable[Verify], limiting factor on which skills can be learned or having useful effects, and certain professions requiring various skills, the need arises to:

  • avoid appointing a dwarf that will never learn a certain skill to a profession that uses it:
  • appoint a dwarf with an useful effect given by a trait to a profession that benefits from it:

The solution comes in the form of a nice sortable reference table:

coming soon! work in progress... please don't delete hidden comments... ;)

Skill Rust[edit]

Every skill has the following set of improvement and decay counters, which are caste specific:

[SKILL_RATE] (Default is [SKILL_RATE:100:8:16:16])

* % of improvement points you get (Default 100)
* unused counter cap (Default 8)
* rust counter cap (Default 16)
* demotion counter cap (Default 16)

Once per day, each skill's "unused" counter increments by 1, and if it reaches the cap (without the skill ever being used), it resets to zero and increments the rust counter. Once the rust counter reaches its cap, it resets to zero, adds a "layer" of rust to the skill (to a maximum of 6), and increments the demotion counter. When the demotion counter reaches its cap, it resets to zero and the skill level is permanently reduced by 1 (and must be re-earned). With the default numbers, it takes about 4 and a half months before rust sets in, 2 years and 3 months before rust maxes out, and 6 years before actual skill levels begin to decay.

The Rusty and V.Rusty descriptions which are appended to a skill within Dwarf Fortress are determined by the following conditions:

  • Rusty: A skill level greater than 0, and the number of rust layers is at least 50% of the original skill level.
  • Very Rusty: A skill level greater than or equal to 4, and the number of rust layers is at least 75% of the original skill level.

Since a skill can never gain more than 6 levels of rust, only skills between "Skilled" and "Expert" can ever show as "V. Rusty", and only skills at "Master" or lower can ever show as "Rusty" - higher level skills will silently accumulate rust until they are eventually demoted below "High Master", then the rust will become visible.

Whenever experience is gained, the skill's "unused" counter is reset to zero, its "rust" and "demotion" counters are decremented by 1, and one or more levels of rust are removed depending on the amount of experience gained:

  • 50% of the gained experience (rounded down, plus 1) is lost
  • 10% of the lost experience (rounded down, plus 1) is spent toward removing rust
  • If it was enough to remove more rust than was accumulated, then the XP penalty is set to 10 points per remaining rust level, minus 10

Since most crafting jobs give 30 points of experience, this means it would take 3 jobs to work away 6 levels of rust, each giving only 14 points of experience; if the skill only has 1 level of rust, a single job would work it away without losing any experience.

Miner
Woodworker
Stoneworker
Ranger
Doctor
Farmer
Fishery worker
Metalsmith
Jeweler
Craftsdwarf
Engineer

Administrator
Military
General
Weapon
Other
Social
Broker
Other

Other/Peasant
Unused