Difference between revisions of "Skill point"

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'''Skill points''' are used to level up [[skill]]s, rather than direct [[XP]].
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'''Skill points''' are in fact what determine your advancement in [[skill]]s, not XP.
 
  
 
==General mechanics==
 
==General mechanics==
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When you gain XP (usually by killing a monster, but also sometimes through a [[potion of experience]]), you gain a corresponding number of skill points which are then distributed amongst your active skills.  The ratio of skill points to XP changes with the total XP (or, analogously, the total skill points) that your character has ever gained.  At the beginning of the game, the ratio will be roughly 1:10, but it will gradually decrease until it hits a cap of 265:10, something which will almost always be reached by XL27.
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When you gain XP, you gain a corresponding number of skill points which are then distributed amongst your active skills.  The ratio of skill points to XP changes with the total XP (or, analogously, the total skill points) that your character has ever gained.  At the beginning of the game, the ratio will be roughly 1:10, but it will gradually decrease until it hits a cap of 265:10, which will almost always be reached by XL27. This effect is particularly notable when quaffing potions of experience - they give considerably more skill levels early on.
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Players will notice the effects of the decreasing ratio of skill points to XP, even if they don't realize it.  Early on, killing a difficult monster like a [[hill giant]] may raise a L0 skill several levels.  Later on, players will be lucky to get even one level out of killing the same hill giant, even if they still only have one L0 skill activated.  This effect is also particularly notable when quaffing potions of experience - they give considerably more skill levels early on.
 
  
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One very important fact to keep in mind is this: ignoring cross-training, the total XP required to get a chosen set of skills to a chosen level is invariant. That is, if you decide that your MiBe will go for L27 Axes, L27 Armour, and L15 Fighting, it does not matter if you train all three skills to L15 first and then train the remaining two to L27, or if you train them one at a time - at least for the purposes of total
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For a given set of skills, the total XP required remains the same, independent of order. If you decide to go for L15 Fighting and L27 Axes, training both skills to L15 or training Axes to L27 first has the same raw XP cost. While the first skill will require less XP, keep in mind that there's also ''just less XP available'' earlier on - the reason why this mechanic exists.
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XP investment.
 
  
 
==Strategy==
 
==Strategy==
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Absolutely none. Skill training routes do not affect the total XP required to gain skills.  The fact that it is easier to gain skill levels when total XP is lower might suggest that training few skills early on is good strategy, but this is already considered optimal anyway.  The old learndb entry for skill points was "Only galehar <nowiki>[a developer]</nowiki> should know or care what these are."  It may not have been the most illuminating, but it is correct in its message: skill points are something the player has no control over, and cannot use to their advantage.
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Absolutely none. The old learndb entry for skill points was "Only galehar <nowiki>[a developer]</nowiki> should know or care what these are."  It may not have been the most illuminating, but it is correct in its message: skill points are something the player has no control over, and cannot use to their advantage.
  
 
==Specific mechanics==
 
==Specific mechanics==

Revision as of 11:46, 25 July 2022

Version 0.18: This article may not be up to date for the latest stable release of Crawl.

Skill points are used to level up skills, rather than direct XP.

General mechanics

When you gain XP, you gain a corresponding number of skill points which are then distributed amongst your active skills. The ratio of skill points to XP changes with the total XP (or, analogously, the total skill points) that your character has ever gained. At the beginning of the game, the ratio will be roughly 1:10, but it will gradually decrease until it hits a cap of 265:10, which will almost always be reached by XL27. This effect is particularly notable when quaffing potions of experience - they give considerably more skill levels early on.

For a given set of skills, the total XP required remains the same, independent of order. If you decide to go for L15 Fighting and L27 Axes, training both skills to L15 or training Axes to L27 first has the same raw XP cost. While the first skill will require less XP, keep in mind that there's also just less XP available earlier on - the reason why this mechanic exists.

Strategy

Absolutely none. The old learndb entry for skill points was "Only galehar [a developer] should know or care what these are." It may not have been the most illuminating, but it is correct in its message: skill points are something the player has no control over, and cannot use to their advantage.

Specific mechanics

The skill point ratio is actually determined by looking at the XL a character with a 130 XP aptitude in the old system (partway between 0 and -1 in the new system) would be at. The skill point costs in XP are as follows:

XP 130 "level" Skill point cost
1 1
2 2
3 3
4 4
5 5
6 7
7 8
8 9
9 13
10 22
11 37
12 48
13 73
14 98
15 125
16 145
17 170
18 190
19 212
20 225
21 240
22 255
23 260
24-27 265

Skill point cost.png

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