Call of Cthulhu - D20 - GM Screen.pdf - Call of Cthulhu {D20} - R5700

Table 1: Abilities

Score

Modifier

Table 2: Level Progression

Level

Bad

Save

Bonus

Good

Save

Bonus

Defense

Attack

Bonus

Offense

Attack

Bonus

Defense

Bonus

Offense

Bonus

Table 6: DC Ex.

Difficulty

-5

Very Easy

2-3

-4

Easy

4-5

-3

1 st

Average

6-7

-2

2 nd

1,000

Tough

8-9

-1

3 rd

3,000

Challenging

10-11

4 th

6,000

Formidable

12-13

5 th

10,000

Heroic

14-15

6 th

15,000

16-17

7 th

21,000

+6/+1

Table 4: Aging Effects

Age

18-19

8 th

28,000

+6/+1

20-21

9 th

36,000

+7/+2

and so on

10 th

45,000

+8/+3

Str/

Con/

Dex

Int/

Wis/

Cha

11 th

55,000

+9/+4

12 th

66,000

+6/+1

+9/+4

13 th

78,000

+6/+1

+10/+5

Middle

(50 years)

-1

14 th

91,000

+7/+2

+11/+6/+1

15 th

105,000

+7/+2

+12/+7/+2

Old

(65 years)

-2

16 th

120,000

+10

+8/+3

+12/+7/+2

17 th

136,000

+10

+8/+3

+13/+8/+3

Venerable

(80 years)

-3

18 th

153,000

+11

+9/+4

+14/+9/+4

19 th

171,000

+11

+9/+4 +15/+10/+5

Maximum Age (+3d10 years)

20th 190,000

+12

+10/5

+15/+10/+5

Table 3: Profession Templates (add three more skills of player’s choice)

Agent (-1)

Antiquarian (-1)

Archaeologist (0)

Artist/Music. (-2)

Blue-Collar Work. (-1)

Bluff

Appraise

Bluff

Climb

Computer Use

Forgery

Climb

Craft (any one)

Forgery

Gather Information

Knowledge (archaeology) Diplomacy

Disable Device

Gather Information

Knowledge (history)

Innuendo

Drive

Hide

Knowledge (any one)

Knowledge (art)

Gather Information

Innuendo

Knowledge (any one)

Research

Listen

Operate Heavy

Machinery

Move Silently

Knowledge (any one)

Performance

Repair

Open Lock

Research

Speak Other Language

Sense Motive

Spot

Sense Motive

Speak Other Language Spot

Spot

Use Rope

Detective (-1)

Criminal (-1)

Dilettante (+1)

Doctor/Nurse (+2)

Parapsychologist (-2)

Bluff

Gather Information

Diplomacy

Computer Use

Bluff

Disable Device

Hide

Drive

Diplomacy

Gather Information

Escape Artist

Intimidate

Gather Information

Heal

Knowledge (history)

Forgery

Listen

Innuendo

Knowledge (biology) Knowledge (occult)

Hide

Move Silently

Knowledge (art)

Knowledge

(medicine)

Knowledge (religion)

Innuendo

Open Lock

Knowledge (one city)

Knowledge (any one) Listen

Move Silently

Pilot

Listen

Open Lock

Sense Motive

Ride

Research

Sense Motive

Sleight of Hand

Spot

Speak Other Language

Spot

Priest/Clergyman (-1)

Professor (0)

Psychologist (0)

Soldier (-2)

Technician (+2)

Concentration

Bluff

Climb

Computer Use

Diplomacy

Hide

Craft (any one)

Knowledge (religion)

Gather Information

Jump

Disable Device

Knowledge (any one)

Heal

Listen

Knowledge (any one)

Knowledge (medicine)

Move Silently

Open Lock

Listen

Knowledge (any one)

Knowledge (psychology) Spot

Operate Heavy

Machinery

Sense Motive

Research

Psychoanalysis

Swim

Repair

Speak Other Language

Speak Other Language Research

Use Rope

Research

Spot

Sense Motive

Wilderness Lore

White-collar Work. (+1)

Writer/Reporter (-1)

Bluff

Craft (photography)

Table 5: Money (x1d6 +profession modifier)

Era

Computer Use

Craft (writing)

Table 10: Computer Use

Task

Diplomacy

Forgery

Gather Information

Starting

Money

Yearly

Income

Intimidate

Innuendo

1901-1920

$1,000

$500

Knowledge (any one)

Modify existing program

1921-1940

$2,000

$1,000

Listen

Knowledge (any one)

Create new program

20-30

1941-1960

$4,000

Sense Motive

Research

Break into secured system

1961-1980

$4,000

$8,000

Spot

Sense Motive

1981+

$6,000

$10,000

Table 7: Balance

Surface DC

6+ to 12 inches wide 10

2 to 6 inches wide 15

Less than 2 inches wide 20

Uneven floor

Table 8: Bluff

Example

Modifier to

Sense Motive

Table 9: Climb

Wall or Surface DC

Knotted rope and wall 0

Rope with wall/ knotted rope with no wall 5

Surface with ledges 10

Surface with handholds and footholds/ rope 15

Uneven surface with narrow handholds and footholds 20

Rough surface

Target wants to believe you

-5

Bluff is believable/

doesn’t affaect target much

Bluff is a little hard to believe/

puts the target at some risk

Surface angled

Bluff is hard to believe or

risky for the target

+10

Overhang or ceiling with handholds only

Surface slippery

Perfectly smooth, flat, vertical surface

Bluff is way out there

+20

Chimney

-10

Corner

-5

Slippery surface

Table 11: Concentration

Distraction DC

Vigorous motion 10

Violent motion 15

Casting on the defensive 15

Taking damage 15 + damage

Suffering continuous damage 15 + half of cont. damage

Spellcasting while grappled or pinned 25

Table 12: Craft

Item DC

Very simple 5

Typical 10

High-quality 15

Complex or superior 20

Very complex

Table 13: Demolitions

Task DC

Set explosive device 10

Disarm explosive 15

Build explosive from scratch 25

Disarm scratch-built explosive Opposed

Table 14: Disable Device

Device

Time

Table 16: Drive

Maneuver or Condition DC

45-degree turn 10

90-degree turn 12

180-degree turn 25

Keeping to a narrow track 15

Avoiding a moving obstacle 20

Dirt or gravel road +2

Wet surface +4

Oily surface +6

Icy surface +8

Recovering from a collision +10

Rain or snow +2 to +4

Vision obscured up to +10

20-30 mph +2*

31-40 mph +4*

41-50 mph +6*

51-60 mph +8*

Over 60 mph +2 each 10 mph*

* Loss of windshield doubles penalties

Table 18: Forgery

Condition

Forgery

Check

Modifier

Simple

1 round

Tricky

1d4 rounds

Difficult

2d4 rounds

Document unknown to reader

-2

Wicked

2d4 rounds

Document somewhat unknown to reader

Document well known to reader

Handwriting not known to reader

-2

Table 15-1: Disguise

Disguise

Handwriting somewhat known to reader

Handwriting well known to reader

Modifier

Reader casually reviews the document

-2

Minor details only

As different sex

-2

Table 19: Handle Animal

Task

As different race

-2

As different age, per category

-2

Time

Handle domestic animal

Varies

Table 15-2: Disguise

Familiarity

“Push” domestic animal

Varies

Teach an animal tasks

2 months

Teach an animal unusual tasks 2 months

Modifier to

Spot

Rear a wild animal

1 year

15 + HD

Train a wild animal

2 months 20 + HD

Recognizes on sight

Table 20: Heal

Task

Table 21: Jump

Type of Jump

Friend or associate

Close friend

Intimate

+10

First aid

Immediate

psychological help

Minimum

Distance

Additional

Distance

Maximum

Distance

Table 17: Escape Artist

Restraint DC

Ropes Opponent’s Use Rope +10

Net 20

Handcuffs 30

Tight space 30

Grappler

Long-term

physical care

Running jump*

5 ft

+ 1ft/1 point above 10

Height + 6 ft

Standing jump

3 ft

+1 ft/2 points above 10

Height + 2 ft

Treat poison

Poison’s DC

Running high jump*

2 ft

+1 ft/4 points above 10 Height + 1 ½ ft

Treat disease

Disease’s DC

Standing high jump

2 ft

+1 ft/8 points above 10

Height

Jump back

1 ft

+1 ft/8 points above 10

Height

*Must move 20 feet before jumping

Table 23: Open Lock

Lock

Opponent’s Grapple check

Table 24: Performance

Check

Result

Table 25: Psychoanalysis

Task

Table 22: Listen

Sound DC

People talking 0

Person walking trying to be quiet 10

Cat stalking

Very simple

Average

Performance

Good

Immediate care

Amazing

Routine

Long-term care

Enjoyable

Great

Table 28: Sense Motive

Task

Table 26: Ride

Task DC

Guide with knees 5

Stay in saddle 5

Cover 15

Leap 15

Soft fall 15

Control mount in battle 20

Fast mount or dismount 20*

*Armor check penalty applies

Memorable

Per 10 ft from the listener

Extraordinary

Through a door

Through a stone wall

+15

Table 31: Spot

Condition

Hunch

Sense enchantment

Table 27: Search

Task DC

Ransack a drawer to find an item 10

Notice a typical secret door or trap 20

Notice a well-hidden secret door

Penalty

Per 10 feet of distance

-1

Table 30: Spellcraft

Task DC

Identify spell being cast 15

Identify spell already in place 20

Decipher a written spell

without learning it

Spotter distracted

-5

Table 34: Use Rope

Task DC

Tie a firm knot 10

Tie a special knot 15

Tie a rope one-handed 15

Splice two ropes together 15

Table 36: Track

Surface or Condition DC

Very soft surface 5

Soft surface 10

Firm surface 15

Hard surface 20

Every 3 targets being tracked -1

Target is Fine

Table 29: Sleight of Hand

Task DC

Palm a coin-size object 10

Lift a small object from a person 20

Plant an object on a person

Understand a strange or

unique magical effect

30+

Table 37: Mind Probe

Circumstances DC

Target touching you 20

Target within 30 feet 25

Target well known to you -2

Target acquainted with you +0

Target unknown to you +2

Target is unwilling +5

Target has Mind Read feat +5

Target has Mind Probe feat +5

Answer is a guarded secret +10

Table 32: Swim

Table 33: Tumble

Task

Target is Diminutive

Target is Small

Treat a fall as 10 feet

shorter

Water DC

Calm water 10

Rough water/ moderate current 15

Stormy water/ strong current

Target is Medium

Target is Large

-1

Tumble up to 20 feet,

through areas adjacent

to enemies

Target is Huge

-2

Target is Gargantuan

-4

DC 20 each hour or take 1d6

subdual damage

Target is Colossal

-8

Tumble up to 20 feet,

through areas occupied

by enemies

Every 24 hours elapsed

Every hour of rain elapsed

Table 35: Wilderness Lore

Task

Fresh snow cover

+10

Table 38: Psychokinesis

Task DC

Opening a door 20

Turning a dial to a specific setting 25

Tying or untying a knot

Overcast or moonless night

Fog or precipitation

Moonlight

Get along in the wild

Target hides trail

Gain bonuses against

severe weather

Avoid getting lost or

natural hazards

Signing your name

Table 39: Mind Reading

Circumstances DC

Target touching you 15

Target within 30 feet 20

Target between 30 feet and 1 mile 25

Target between 1and 25 miles 30

Target between 25 and 1,000 miles 35

Target more than 1,000 miles away 40

Target well known to you

-2

Table 41: Telepathy

Circumstances DC

Target touching you 15

Target within 30 feet 20

Target between 30 feet and 1 mile 25

Target between 1and 25 miles 30

Target between 25 and 1,000 miles 35

Target more than 1,000 miles away 40

Target well known to you

-2

Table 44: Short-Term T. Insanity

d% Effect on character

01-20 Character faints

21-30 Character has a screaming fit

31-40 Character flees in panic

41-50 Character shows physical hysterics

or emotional outburst

51-55 Character babbles in incoherent rapid

speech or logorrhoea

56-60 Character gripped by intense phobia

61-65 Character becomes homicidal, harming

the nearest person

66-70 Character has hallucinations or delusions

71-75 Character gripped by echopraxia or

echolalia

76-80 Character gripped with strange or

deviant eating desire

81-90 Character falls into a stupor

91-99 Character becomes catatonic

Target acquainted with you

Target unknown to you

Target is unwilling

Target is sleeping

-5

Target has Sensitive feat

-5

Target has Sensitive feat

-5

Target has Telepathy feat

-5

Target has Mind Reading feat

-5

Table 40: Remote Vieweing

Location

Table 42: Sanity Loss Examples

Situation

Sanity Loss

Less than 100 feet away

Surprised to find mangled

animal carcass

0/1d2

Roll on Table 45

Between 100 feet and 1 mile

Between 1 and 25 miles

Surprised to find human corpse

0/1d3

Table 45: Long-Term T. Insanity

d% Effect on character

01-10 Character performs compulsive rituals

11-20 Character has hallucinations or delusions

21-30 Character becomes paranoid

31-40 Character gripped with intense phobia

(Will save DC 20 to approach)

41-45 Character has strange sexual desires

46-55 Character develops an attachment to

a “lucky charm”

56-65 Character develops psychosomatic

blindness, deafness, or loss of limb usage

66-75 Character has uncontrollable tics

or tremors (-4 to attacks, checks, saves)

76-85 Character has amnesia (Knowledge

skill useless)

86-90 Character has bouts of reactive psychosis

91-95 Character loses ability to communicate

via speech or writing

96-00 Character becomes catatonic

Between 25 and 1,000 miles

Surprised to find human body part

0/1d3

More than 1,000 miles away

Finding a stream flowing with blood

0/1d4

Location well known to you

Finding a mangled human corpse

1/1d4+1

Location you have seen once

Awakening trapped in a coffin

0/1d6

Location only described

Witnessing a friend’s violent death

0/1d6

Location never seen

Meeting someone you know to be dead

1/1d6+1

Location unimaginable

Undergoing severe torture

0/1d10

Seeing a corpse rising from its grave

1/1d10

Seeing a gigantic severed head

fall from sky

2/2d10+1

Table 49: Combat Actions

No Action

Delay

Table 43: Temp. Insanity Duration

d10 roll Insanity Type

Duration

Free Actions

Speak

Cease concentrating on a spell

Drop an item

Drop to the floor

Draw a weapon (if you’re moving)

1-7

Short temporary

1d10+4 rounds

8-10

Longer temporary

1d10x10 hours

Table 47: Recovering Sanity

Therapy Sanity regained

Psychiatric Medications 1d3 per month, 50% chance

of drug side effects

Move Actions

Move your speed

Climb (1/4 your speed)

Sheathe or holster a weapon

Open a door

Pick up an item or click on a flashlight

Retrieve a stored item

Move a heavy object

Stand up from prone

Draw a weapon (if you’re not moving)

Table 46: Indefinite Insanities

d% Mental Disorder Type

01-15 Anxiety disorders

16-25 Dissociative disorders

26-30 Eating disorders

31-35 Impulse control disorders

36-45 Mood disorders

46-50 Personality disorders

51-55 Psychosexual disorders

56-70 Schizophrenia/psychotic disorders

71-80 Sleep disorders

81-85 Somatoform disorders

86-95 Substance abuse disorders

96-00 Other disorders

Psychoanalysis

1 per week, 1 loss if a “1”

is rolled

Private care

1d3 per month, 5% chance

of 1d6 loss

Institutionalization

1d3 per month, 5% chance

of 1d6 loss

Level Gain

1d6

Attack Actions

Make a single attack

Ready

Concentrate to maintain a spell

Dismiss a spell

Bum’s rush (as an attack)

Change form (for a shapeshifter)

Use touch spell on self

Escape a grapple

Feint

Heal a dying friend

Light a candle with a match

Use a skill that takes 1 action

Strike a weapon (attack)

Strike an object (attack)

Total defense

Table 48: Two-Weapon Fighting

Circumstances

Primary

Hand

Off

Hand

Normal penalties

-6

-10

Off-hand weapon is light

-4

-8

Ambidexterity feat

-6

Two Weapon Fighting feat

-4

-8

Table 51: Cover

Degree of Cover Bonus to

Off-hand weapon is light and

Ambidexterity feat

-4

Off-hand weapon is light abd Two-

Weapon Figthing feat

-2

-6

Bonus to

Reflex Saves

Ambidexterity and Two-Weapon

Fighting feats

-4

One-quarter

One-half

Off-hand weapon is light, Ambidex-

terity and Two Weapon Fighting

-2

Three-quarters

Nine-tenths

+10

+4*

Total

Full-Round Actions

Climb (1/2 your speed)

Use a skill that takes 1 round

Coup de grace

Bum’s rush (as a charge)

Extinguish flames

Load a firearm

Use touch spell on up to 6 friends

Refocus (no move)

Escape from a net

Escape from a trap

Withdraw from melee

* Save for half or no damage

Table 50: Attack Roll Modifiers

Circumstance

Melee

Ranged

Table 52: Concealment

Degree of Concealment Miss Chance

One-quarter

Attacker flanking defender

Attacker on higher ground

10%

Attacker prone

-4

One-half

20%

Attacker invisible

+2*

Three-quarters

30%

Defender sitting or kneeling

See Table 51

Nine-tenths

40%

Defender prone

See Table 51

Total

50% and must

guess location

Defender cowering or stunned

+2*

Defender climbing

+2*

Varied Actions (one melee attack)

Disarm

Grapple

Trip

Defender surprised or flat-footed

+0*

Defender running

+0*

-2*

Defender grappling (attacker not) +0*

+0*

Defender pinned

+4*

-4*

Defender has cover

See Table 51

Defender concealed or invisible

See Table 52

* No Dexterity bonus to AC

Table 53: Size and AC of Objects

Size

AC Modifier

Table 62: Melee Weapons

Weapon

Damage Critical

Range

Increment

Weight Type

Colossal

-8

Gargantuan

-4

Tiny Weapons

Huge

-2

Brass knuckles

1d3

0.5

Large

-1

Knife, steak

1d3

0.5

Medium

Razor, straight

1d3

0.5

Small

Stiletto/Switchblade

1d3

19-20/x2

0.75

Tiny

Knife, commando

1d4

19-20/x2

Diminutive

Knife, hunting

1d4

19-20/x2

2.5

Fine

Knife, combat

1d4

19-20/x2

2.5

Small Weapons

Table 54: Substance Hard. and HP

Substance Hardness HP (per inch of thickness)

Paper

Sap

1d6 sub.

Pocketknife/Scalpel

1d3

0.5

Cleaver

1d4

19-20/ x2

Knife, butcher

1d4

19-20/ x2

Folding shovel

1d4

2.5

B/S

Rope

Gun butt, pistol

1d4

Glass

Knife, kukri

1d4

18-20/ x2

Hard rubber

Hatchet/Tomahawk

1d6

3.5

Plastic

Nunchaku

1d6

Ice

Medium-Size Weapons

Wood

Croquet mallet

1d4

2.5

Fiberglass

Nightstick

1d4

1.5

Stone

Fencing foil

1d4

18-20/ x2

2.5

Iron

Bayonet, hand-held

1d4

19-20/ x2

2.5

Crowbar/Tire iron/Fireplace poker

1d6

Table 55: Weapon Hard. and HP

Weapon

Pick/Pickaxe

1d6

Machete

1d6

19-20/ x2

2.5

Rapier

1d6

18-20/ x2

Hardness

Saber, cavalry

1d6

18-20/ x2

Tiny blade

Large Weapons

Medium blade

Bat, baseball or cricket

1d6

Small hefted weapon

Bayonet, fixed to rifle

1d6

19-20/ x2

11.5

P/S

Medium hefted weapon

Gun butt, rifle or shotgun

1d6

Handgun

Shovel/Spade

1d6

Rifle/Shotgun

Axe, wood or fire

1d8

Table 56: DCs to Break Items

Strength Check to:

Table 60: Random Diseases

d% DC Incubation Damage

01-20 16

Secondary

Damage

Injury DC 12 0 1d4 Dex

Injury DC 13 1 Con 1d2 Con

Injury DC 13 1d4 Str 1d6 Str

Injury DC 12 0 1d4 Con + 1d3 Wis

Injury DC 24 1d6 Str 1d6 Str

Injury DC 14 1d6 Str 1d6 Str

Injury DC 17 3d6 Con 3d6 Con

Injury DC 14 1 Con Unconsciousness

Injury DC 15 1d6 Dex 1d6 Dex

Injury DC 17 1 Str* 2d6 Str

Injury DC 20 1d6 Con 2d6 Con

Contact DC 16 1 Dex 2d4 Dex

Contact DC 13 0 3d6 Con

Contact DC 26 3d6 Str 0

Contact DC 16 2d12 hp 1d6 Con

Contact DC 16 1d6 Dex 2d6 Dex

Contact DC 13 Paralysis 0

Contact DC 20 3d6 Con 3d6 Con

Ingested DC 15 0 Unconsciousness

Ingested DC 14 1d4 Int 2d6 Int

Ingested DC 11 1 Wis 2d6 Wis + 1d4 Int

Ingested DC 13 1 Con 1d8 Con

Ingested DC 17 2d6 Str 1d6 Str

Ingested DC 18 2d6 Con 1d6 Con + 1d6 Str

Inhaled DC 15 1 Cha 1d6 Cha + 1 Cha*

Inhaled DC 18 1 Con* 3d6 Con

Inhaled DC 15 1d4 Wis 2d6 Wis

* permanent

Initial

Damage

1d3 days

1d4 Str

(ST or be blinded)

Break down simple door

21-30 16

1 day

1d6 Wis

Break down good door

31-35 18

1 day

1d6 Con

Break down strong door

36-40 14

1d4 days

1d4 Str

Burst rope bonds

41-60 12

1d3 days

1d3 Dex, 1d3 Con

Bend iron bars

61-70 12

1 day

1d4 Int

Break barred door

71-75 20

1 day

1d6 Con

Burst chain bonds

76-85 15

1d3 days

1d6 Str

Break down iron door

86-90 13

1 day

1d8 Dex

91-00 14

1 day

1d4 Con

(ST or 1 is permanent)

Table 57: Object Hardness and HP

Object

Hardness HP Break DC

Table 58: Firearm Attacks

Rate of Fire

Attacks

Penalty

Rope (1” diam.)

Standard

+1 att/round

-6

Bottle

Multifire

+1 att/round

-4

Simple wooden door

Autofire

+2 att/round

-6

Wooden pole

Rapid Shot feat +1 att/round

-2

Small chest

Multishot feat

Penalty reduced by 2

Good wooden door

Strong wooden door

Table 64: Generic Armor

Armor

Car door

Masonry wall (1’ thick)

Hewn stone (3’ thick)

540

Bonus

Armor

Check

Penalty

Chain

Handcuffs

Iron door (2” thick)

Bullet resistant vest

-1

Reinforced vest

-2

Table 59: Detecting Invisible Creat.

Condition Listen DC

In combat or speaking 0

Moving at half speed

Flak vest

-3

Flak armor

-4

Table 65: Explosives

Explosive

Move Silently check

Moving at full speed

Move Silently check at -4

Blast

Radius

Damage

Running or charging

Move Silently check at –20

Distance

+1 per 10 feet

Dynamite

4d6

Obstacle: door

Fragmentation grenade

3d6

Obstacle: stone wall

+15

C-4

6d6

Pipe bomb

3d6

Table 63: Generic Firearms

Weapon

Damage

Critical Capacity

Range

Increment

Rate

of Fire

Handgun (9mm)

1d10

Multifire

Rifle (.30-06 bolt action)

2d10

200

Standard

Shotgun (12-gauge pump-action)

3d6/2d6/1d6

Standard

Submachine Gun (9x19mm sel. Fire)

1d10

Autofire

Table 61: Poisons

Poison Type

Call of Cthulhu - D20 - GM Screen.pdf

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