- ERRATA & NOTES: CALL
OF CTHULHU D20
- Throughout: Several gods, monsters
and spells are missing; see the notes at the end of these errata.
- The Dreamlands are mentioned
in several places (pp. 178 [inferred], 184, 257, 296, 307, 309),
but only Mordiggian's entry (p. 307) comes close to defining
that realm. If they are to be mentioned at all, the book should
at least offer a sidebar's worth of explanation.
- p. 8, Intelligence: Delete
the first bulleted item, about languages.
- p. 82, Damage Reduction;
Disease: [See "Missing Monsters" about vampires.]
- p. 84, Poison: [See "Missing
Gods" about Atlach-Nacha.]
- p. 131, Banishment of Yde
Etad: "Outsider" is a type, not a subtype. Outsiders
appearing in the Creatures chapter (pp. 152-201) include: colour
out of space, dimensional shambler, elder thing, nightgaunt,
servitor of the Outer Gods, terror from beyond. This spell might
also be effective on humanoids possessed by Yithians (pp. 171-172).
- pp. 132-133, Call Deity:
Call Azathoth requires pipes enchanted using an Enchant Item
spell (pp. 140-141). [See "Missing Gods" about Nyogtha.]
- p. 133, Cast Out Devil: [See
"Missing Gods" about Y'golonac.]
- p. 133, Cast Out Shan: The
1 Con drain should be mentioned under Cost.
- p. 135, Contact Creature:
Deep ones have 2 HD, so a 6th-level caster can summon three.
[See "Missing Monsters" about sand-dwellers and star-spawn.]
- pp. 135-136, Contact Deity:
[See "Missing Gods" about Y'golonac.]
- p. 137, Create Time Gate:
No material component is described; see Create Gate, pp. 136-137.
- pp. 137-138, Curse of the
Putrid Husk: No material component is described.
- p. 138, Darkness: Darkvision
is not described in CoC; see D&D Dungeon Master's Guide,
- p. 138, Death By Flames:
No material component is described.
- pp. 140-141, Enchant Item:
The Enchant Pipes entry states that these pipes are required
for Call Azathoth, but that god's entry under Call Deity (pp.
132-133) makes no mention of them.
- p. 144, Locate Creature:
No material component is described.
- p. 144, Look to the Future:
No focus is described.
- p. 145, Mirror of Tarkhun
Atep: Components should include "F," for the mirror
used in the spell.
- p. 138, Raise Night Fog:
Darkvision is not described in CoC; see D&D Dungeon Master's
Guide, p. 74.
- p. 150, Voorish Sign: Note
that Voorish Sign raises the subsequent spell's DC by 3, but
costs 2 Int, for a net increase of +2.
- p. 151, Word of Recall: Mythos
spells are not prepared, as are most D&D spells; designate
the sanctuary when the spell is cast.
- pp. 152-153, Size and Type:
There is no entry for Elemental; see Lloigor, pp. 175-176, for
Elemental traits. (See the D&D Monster Manual, p. 5, for
- The Ooze example should be
Formless Spawn (shoggoths are aberrations). Change the vermin
example to The Worm that Walks (monstrous spiders do not appear
in this book, and Leng spiders are magical beasts).
- Darkvision is not explained.
(See D&D Dungeon Master's Guide, p. 74.)
- pp. 155, Special Attacks:
Improved grab should be explained here. See D&D Monster Manual,
- pp. 155-156, Special Qualities:
Darkvision should be explained here. See D&D Dungeon Master's
Guide, p. 74.
- p. 157, Advancement: No entry
for Elemental is given; see D&D Monster Manual, p. 13.
- The example in the first
Size Increase table is incorrect; it gains -4 Dex. This error
appears in the D&D Monster Manual, p. 12, and was apparently
copied without correction.
- pp. 166-168, Flying Polyp:
The text describes them as incorporeal; add "(Incorporeal)"
to its type entry. Polyps lack the prerequisites for the Whirlwind
Attack feat (p. 156).
- pp. 169-170, Ghoul: The "ghoul"
template does not give a CR.
- pp. 170-171, Gnoph-Keh: Damage
from throwing an impaled victim across frozen plain is listed
as "[1d6+4]x10 falling damage." "x10" should
probably be "x1d6" instead.
- pp. 185-187, Tcho-Tcho: [See
"Missing Spells" about Contact Shantak.]
- p. 189, Cultists: None have
Weapon Proficiency, so either replace one feat [Precise Shot?]
or impose a -4 to attack.
- p. 194, Sample Ghost: He
does not have Weapon Proficiency, so either replace one feat
[Point Blank Shot?] or impose a -4 to his gun attack.
- p. 196, Sample Loup-Garou:
Initiative: +1 as human (+1 Dex), +7 in wolf or hybrid form (+3
Dex, Improved Initiative). Armor Class: 11 in human form (+1
Dex), 15 in wolf or hybrid form (+3 Dex, +2 natural). She does
not have Weapon Proficiency, so either replace one feat [Rapid
Shot?], or impose a -4 to her weapon attacks.
- p. 198, Sample Greater Mummy:
She does not have Weapon Proficiency, so either replace one feat
or impose a -4 to her attacks.
- pp. 199-201, Animals: CoC
has no encumbrance rules, so Carrying Capacity loads (dogs, horses)
need to be explained. (See D&D Player's Handbook, pp. 141-142.)
- CoC does not fully explain
Improved Grab (crocodile, leopard, lion/tiger). Per the D&D
Monster Manual, p. 9, a grapple check is needed to hold. The
other monster entries in CoC make this clear, but the Animals
entry simply copies text from the Monster Manual.
- p. 206, Y'golonac: [See "Missing
- p. 207, Others: [See "Missing
Monsters" about shantaks.]
- p. 266, Interview Frank Long:
Long is apparently an Offense Option character (+1 base attack,
-1 Str = +0). He should have one good save (+2), but only his
stat modifiers are included.
- p. 267, GM Map: No scale
- p. 268, The Book of Sound
and Light: Contact Yog-Sothoth does not appear on pp. 135-136;
Call Yog-Sothoth appears on pp. 132-133. [See "Missing Spells."]
- p. 270, Confronting Jacobs:
He is a Defense Option character, so both Atk should be +3 (+2
base, +1 Str or Dex). He has no Weapon Proficiency, so either
replace a feat [Point Blank Shot?] or impose a -4 penalty on
his pistol attacks. "Awareness" should be "Alertness."
See the note to p. 268 about his spells.
- pp. 277, Dr. Thomas Joshi;
Dr. Melissa Corbitt; Dr. Edgar Roth: These three are Defense
Option characters. Corbitt's Atk should be +0 melee (+0 base,
+0 Str) or +1 ranged (+0 base, +1 Dex).
- p. 278, Sam Brendel: He is
an Offense Option character.
- pp. 278-279, Charles Peal;
Robert Nelson: Both are Offense Option characters. Peal's Atk
should be +1 melee (base) or +2 ranged (+1 base, +1 Dex); his
Will save should be +1 (Wis). Nelson's Atk should be +3 melee
(+2 base, +1 Str) or +2 ranged (base). The Smith & Wesson
Model 29 Revolver does not appear in the Specific Firearms tables
(pp. 98-99); the GM should choose a listed pistol for any additional
statistics needed, or use the Generic Handgun (p. 95) instead.
- pp. 292-293, Cthulhu: [See
"Missing Monsters" about star-spawn.]
- p. 304, picture of Y'golonac:
[See "Missing Gods."]
- p. 315, Roger Zelazny: The
correct title is A Night in _the_ Lonesome October.
- p. 316, M.R. James: "Count
Magnus" is listed twice.
- MISSING GODS
- Atlach-Nacha: Mentioned under
Poison (p. 2 . Suggested fix pending official errata: Use a Leng
Spider (pp. 183-184) of largest size, and add Divine Qualities
- Nyogtha: Mentioned under
Call Deity (pp. 132-133), Clutch of Nyogtha (p.134) and Tsathogghua
(pp. 311-312). Suggested fix pending official errata: Use a Formless
Spawn (pp. 168-169) of largest size, and add Divine Qualities
- Y'golonac: Mentioned under
Contac Deity (pp. 135-136) and False Gods (pp. 205-206), and
illustrated on p. 304. (No suggested fix yet.)
- MISSING MONSTERS
- Moonbeast: Mentioned under
Noden (pp. 308-309) and described in sidebars on pp. 237 and
- Shantak: Mentioned under
Tcho-Tcho (pp. 185-187), Nyarlathotep (pp. 295-297) and Nodens
- Sand-Dweller: Mentioned under
Contact Creature (p. 135).
- Star-Spawn: Mentioned under
Contact Creature (p. 135) and Cthulhu (pp. 292-293).
- Vampire: Mentioned under
Damage Reduction (p. 82) and Disease (p. 82). Use the template
in the D&D Monster Manual, pp. 221-222, or create your own.
- MISSING SPELLS
- Contact Shantak: Mentioned
under Tcho-Tcho (pp. 185-187).
- Contact Yog-Sothoth: Contained
in the Book of Sound and Light (p. 26 , and known to Jacobs (p.
270). However, Contact Yog-Sothoth does not appear on pp. 135-136;
only Call Yog-Sothoth is described (pp. 132-133).