Skills
SKILL BASICS
Getting Skills
At each level, a character gets
skill points that are used to buy skills. The character’s class and
Intelligence modifier determine the number of points received.
If the character buys a class
skill, he or she gets 1 rank in the skill for each skill point spent. If the
character buys a cross-class skill, he or she gets ½ rank per skill point. The
maximum rank in a class skill is equal to character level + 3. The maximum rank
in a cross-class skill is one-half of this number.
Using Skills
To make a skill check, roll:
1d20 + skill modifier
(Skill modifier = skill ranks +
ability modifier + miscellaneous modifiers)
Skill Ranks: A
character’s ranks in a skill is based on the number of skill points the
character has invested in the skill. Some skills can be used even if the
character has no ranks in the skill; doing this is known as making an untrained
skill check.
Ability Modifier: The
ability modifier used in the skill check is the modifier for the skill’s key
ability (the ability associated with the skill’s use). The key ability of a
skill is noted in its description.
Miscellaneous Modifiers:
Miscellaneous modifiers include bonuses provided by feats and class features,
and penalties such as the ones associated with the nonproficient use of armour,
among others.
Acquiring Skill Ranks
Ranks indicate how much training or
experience a character has with a given skill. Each skill has a number of
ranks, from 0 (for a skill in which a character has no training at all) to 23
(for a 20th-level character who has increased a class skill to its maximum
rank). When making a skill check, a character adds his or her skill ranks to
the roll as part of the skill modifier.
The rules assume that a character
can always find a way to learn any skill. However, the GM can impose limits
depending on circumstances and a given situation.
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Table: Skill Points per Level |
||
|
Class |
1st Level Skill Points |
Higher Level Skill Points |
|
Strong |
(3 + Int modifier) x4 |
3 + Int modifier |
|
Fast |
(5 + Int modifier) x4 |
5 + Int modifier |
|
Tough |
(3 + Int modifier) x4 |
3 + Int modifier |
|
Smart |
(9 + Int modifier) x4 |
9 + Int modifier |
|
Dedicated |
(5 + Int modifier) x4 |
5 + Int modifier |
|
Charismatic |
(7 + Int modifier) x4 |
7 + Int modifier |
Skill Checks
Unlike with attack rolls and saving
throws, a natural roll of 20 on the d20 is not an automatic success when making
a skill check, and a natural roll of 1 is not an automatic failure.
Difficulty Class
Some checks are made against a
Difficulty Class (DC). The DC is a number set by the GM (using the skill rules
as a guideline) that a character must attain to succeed.
|
Table: Difficulty Class Examples |
|
|
Difficulty (DC) |
Example (Skill Used) |
|
Very easy (0) |
Notice something large in plain
sight (Spot) |
|
Easy (5) |
Climb a knotted rope (Climb) |
|
Average (10) |
Hear an approaching servitor
(Listen) |
|
Tough (15) |
Disarm an explosive (Demolitions) |
|
Challenging (20) |
Swim against a strong current
(Swim) |
|
Formidable (25) |
Break into a secure computer
system (Computer Use) |
|
Heroic (30) |
Leap across a 30-foot chasm
(Jump) |
|
Superheroic (35) |
Convince the Arbiters that even
though you’re not wearing an ID badge and aren’t on their list, they should
let you into the building (Bluff) |
|
Nearly impossible (40) |
Track a trained commando through the forests of Catachan on a moonless
night after 12 days of rainfall (Survival) |
Opposed Checks
Some skill checks are opposed
checks. They are made against a randomized number, usually another character’s
skill check result.
For ties on opposed checks, the character
with the higher key ability score wins.
If those scores are the same, roll again.
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Table: Example Opposed Checks |
||
|
Task |
Skill |
Opposing Skill |
|
Sneak up on someone |
Move Silently |
Listen |
|
Con someone |
Bluff |
Sense Motive |
|
Hide from someone |
Hide |
Spot |
|
Win a car race |
Drive |
Drive |
|
Pretend to be someone else |
Disguise |
Spot |
|
Steal a key chain |
Sleight of Hand |
Spot |
|
Create a fake ID |
Forgery |
Forgery |
Trying Again
If a character fails on a skill
check, he or she can sometimes try again. Check the skill description to find
out if, and under what circumstances, a character can try again. Many skills,
however, have natural consequences for failing that must be accounted for. Some
skills can’t be tried again once a check has failed for a particular task.
If the use of a skill carries no
penalty for failure, a character can take 20 and assume that he or she keeps
trying until he or she eventually succeeds.
Untrained Skill Checks
Generally, if a character attempts
to use a skill he or she doesn’t have any ranks in, the character makes a skill
check as described. The character’s skill modifier don’t include skill ranks
because the character doesn’t have any. The character does get other modifiers,
though, such as the ability modifier for the skill’s key ability.
Some skills can be used only if the
character is trained in the skill.
Favorable and Unfavorable Conditions
Some situations may make a skill
easier or harder to use, resulting in a bonus or penalty to the skill modifier
or a change to the skill check’s DC.
The GM can alter the odds of
success in four ways to take into account exceptional circumstances:
1. Give the skill user a +2
circumstance bonus to represent conditions that improve performance, such as
having the perfect tool for the job, getting help from another character, or
working under conditions that are significantly better than normal.
2. Give the skill user a –2
circumstance penalty to represent conditions that hamper performance, such as
being forced to use improvised tools or possessing misleading information.
3. Reduce the DC by 2 to represent
circumstances that make the task easier, such as having a friendly audience
when making a Perform check or searching for information on an extremely well
documented topic with a Computer Use check.
4. Increase the DC by 2 to
represent circumstances that make the task harder, such as making a Perform
check in front of a hostile audience or searching for information on a very
poorly documented topic with a Computer Use check.
Conditions that affect a
character’s ability to perform the skill change the character’s skill modifier.
Conditions that modify how well the character must perform the skill to succeed
change the DC. A bonus on a character’s skill modifier or a reduction in the DC
of the check have the same result—they create a better chance for success. But
they represent different circumstances, and sometimes that difference is
important.
Time and Skill Checks
Using a skill might take a round,
several rounds, or even longer. It might take no time at all. Types of actions
define how long activities take to perform within the framework of a combat
round (6 seconds) and how movement is treated with respect to the
activity. See the skill description for
specifies on how long a skill takes to use.
In general, using a skill that
requires concentration while in close combat is dangerous. Nearby opponents
can make attacks of opportunity against a character when he or she lets his or
her guard down.
Tools
Some skill applications require the
use of tools. If tools are needed, the specific items required are mentioned in
the skill description. If the character doesn’t have the appropriate tools, he
or she can still attempt to use the skill, but the character takes a –4 penalty
on his or her check.
A character may be able to put
together some impromptu tools to make the check. If the GM allows it, reduce
the penalty to –2 (instead of –4) for using impromptu tools. It usually takes
some time (several minutes to an hour or more) to collect or create a set of
impromptu tools, and it may require a skill check as well.
Checks without Rolls
A skill check represents an attempt
to accomplish some goal, usually in the face of time pressure or distraction.
Sometimes, though, a character can use a skill under more favorable conditions
and eliminate the luck factor.
Taking 10
When a character is not being
threatened or distracted, he or she may choose to take 10. Instead of rolling
1d20 for the skill check, calculate the result as if the character had rolled a
10 (an average roll on a d20). For many relatively routine tasks, taking 10
results in a success.
Distractions and threats make it
impossible for a character to take 10. A character also can’t take 10 when
using a skill untrained, though the GM may allow exceptions for truly routine
activities.
Taking 20
When a character has plenty of
time, is faced with no threats or distractions, and the skill being attempted carries
no penalty for failure, a character can take 20. Instead of rolling 1d20 for
the skill check, calculate the result as if the character had rolled a 20.
Taking 20 is the equivalent of
attempting the check over and over again until the character gets it right.
Taking 20 takes twenty times as long as making a single check (2 minutes for a
skill that can normally be checked in 1 round).
Aiding Another
In some situations, characters can
cooperate to accomplish a given task. One character is designated as the leader
in the effort, while the others try to aid the character in his or her efforts.
A character aids another by making a skill check (DC 10). This is an attack
action, and the character can’t take 10 on this check. If the check succeeds,
the character’s ally gains a +2 circumstance bonus to apply to his or her skill
check to complete the task.
In many cases, a character’s help
won’t be beneficial, or only a limited number of characters can help at the
same time. The GM limits aid another attempts as he or she sees fit for the
conditions.
Skill Synergy
Sometimes, the GM may decide that
having one skill provides a bonus when a character uses another skill in
certain situations. The character must have at least 5 ranks in the related
skill to gain this synergy bonus, and the GM must agree that the two skills can
complement each other in the given situation. In such cases, the character
receives a +2 synergy bonus on the skill check.
Ability Checks
Sometimes a character tries to do
something to which no specific skill applies. In these cases, the character
makes an ability check: Roll 1d20 and apply the appropriate ability modifier.
The GM assigns a DC, or sets up an opposed check when two characters are
engaged in a contest using one ability against another. In some cases, a test
of one’s ability doesn’t involve luck.
When two characters arm wrestle, for example, the stronger character
simply wins. In the case of identical scores, make opposed Strength checks.
|
Example Ability Check |
Key Ability |
|
Forcing open a jammed or locked
door |
Strength |
|
Tying a rope |
Dexterity |
|
Holding one’s breath |
Constitution |
|
Navigating a maze |
Intelligence |
|
Recognize a stranger you’ve seen
before |
Wisdom |
|
Getting yourself noticed in a
crowd |
Charisma |
Modifier Types and Stacking
A modifier provides a bonus (a
positive modifier) or a penalty (a negative modifier) to a die roll.
Bonuses with specific descriptors,
such as “equipment bonus,” generally don’t stack (combine for cumulative effect)
with others of the same type. In those cases, only the best bonus of that type
applies.
The only specific bonuses that
stack are dodge bonuses, synergy bonuses, and sometimes circumstance bonuses.
Circumstance bonuses stack only if they’re provided by differing circumstances;
if two circumstance bonuses caused by similar circumstances apply, they don’t
stack.
Specific bonuses that don’t stack
include competence, cover, equipment, morale, natural armour, and size.
Psychic or supernatural effects include:
deflection, enhancement, enlargement, haste, inherent, insight, luck, chaotic,
resistance, and sacred bonus descriptors. None of these bonuses stack.
Any bonus without a descriptor
(such as simply a “+1 bonus”) stacks with other bonuses.
All penalties stack, regardless of
their descriptors.
SKILL DESCRIPTIONS
Skills are presented in
alphabetical order, in the following format. Entries that do not apply to a
particular skill are omitted in that skill’s description.
Skill Description Format
Skill Name (Key Ability)
Trained Only; Armour Penalty
The skill name line and the line
beneath it include the following information:
Key Ability: The
abbreviation for the ability whose modifier applies to the skill check.
Exceptions: Speak Language and Read/Write Language have “None” given as their
key ability because the use of these skills never requires a check.
Trained Only: If
“Trained Only” appears on the line beneath the skill name, a character must
have at least 1 rank in the skill to use it. If “Trained Only” is omitted, the
skill can be used untrained. If any particular notes apply to trained or
untrained use, they are covered in the Special section (see below).
Armour Penalty: If
“Armour Penalty” appears on the line beside the skill name, apply the armour
penalty for the armour the character is wearing to checks involving this skill.
Check: What a character
can do with a successful skill check, and the check’s DC.
Try Again?: Any
conditions that apply to repeated attempts to use the skill for a particular
purpose. If this entry is omitted, the skill check can be tried again without
any inherent penalty other than taking additional time.
Special: Any particular
notes that apply, such as whether a character can take 10 or take 20 when using
the skill.
Untrained: Any details
about using a skill untrained. If this entry doesn’t appear, it means the skill
works the same even when used untrained, or that an untrained character can’t
make checks with this skill (true for skills that are designated “Trained Only”).
Time: How much time it
takes to make a check with this skill.
The Complete Skill List
Here is a complete list of all the
skills available in the d20-Warhammer 40,000 game. Selecting a skill will call
a pop-up with the skill description. Make sure pop-up stoppers are turned off
for this section.
SKILL LIST