TEXT: WRM1: SIZE, HD, BITE, SWALLOW, TAIL
  Length
  1'×5'
  1'×10'
  2'×15'
  2'×20'
  3'×25'
  3'×30'
  3'×35'
  4'×40'
  4'×45'
  5'×50'
  5'×55'
  6'×60'
  6'×65'
  7'×70'
  7'×75'
  8'×80'
  8'×85'
  9'×90'
  9'×95'
  10'×100'
  10'×110'
  11'×120'
  11'×130'
  12'×140'
  12'×150'
  13'×160'
  13'×170'
  14'×180'
  14'×190'
  15'×200'
  Diameter/
   Whole*
  —
  —
  —
  1×2'
  1'×2'
  1'×3'
  2'×3'
  2'×4'
  2'×4'
  3'×5'
  3'×5'
  3'×6'
  4'×6'
  4'×7'
  4'×7'
  5'×8'
  5'×8'
  6'×9'
  6'×9'
  7'×10'
  7'×11'
  8'×12'
  8'×13'
  8'×14'
  9'×15'
  9'×16'
  9'×17'
  10'×18'
  10'×19'
  10'×20'
  Swallow
  Bite
  Dmg.
  1d4
  1d4
  1d4
  1d4
  1d4
  1d4
  1d6
  1d6
  1d6
  1d6
  1d6
  1d6
  1d8
  1d8
  1d8
  1d10
  1d10
  1d10
  1d12
  1d12
  1d12
  2d6
  2d6
  2d6
  2d8
  2d8
  2d8
  2d8
  2d8
  2d8
  Stinger
  HD
  1
  2
  3
  4
  5
  6
  7
  8
  9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  Dmg.
  1
  2
  3
  4
  5
  6
  7
  8
  9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
   Roll    
  1
  2
  3
  4
  5
  6
  7
  8
  9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  WRM4: OTHER ABILITIES/EFFECTS (total number at DM’s discretion)
  Ability
  360° radar sight: –1 AC and +1 “to hit” bonuses
  additional bite effect: blindness (1d5 turns)*
  additional bite effect: coma (1d30 weeks)*
  additional bite effect: electricity (from static) equal to tail damage per HD
  additional bite effect: enrage (1d6 turns)*
  additional bite effect: feeblemind (until cured)*
  additional bite effect: hallucinations (1d30 turns)*
  additional bite effect: hearing loss (1d10 turns)*
  additional bite effect: level drain (1 level) on failed save vs. spell
  additional bite effect: nausea (–1 “to hit” for 1d15 turns)*
  additional bite effect: paralysis (1d5 turns)*
  additional bite effect: poison (death)*
  additional bite effect: sleep (1d30 turns on failed save vs. spell)
  confusion to 5'/HD radius: save vs. spell or confused (as spell; 1d3 turns) 
  covered in acidic goo: normal weapons ruined (10% chance per hit)
  covered in slime: blunt weapons do 1/2 damage (from “slippage”)
  fear to 5'/HD radius: save vs. spell or ﬂee in fear (1d3 turns)
  immunity, acid
  immunity, cold (but takes double damage from ﬁre)
  immunity, electricity
  immunity, ﬁre (but takes double damage from cold)
  immunity, normal weapons (+1d3 required “to hit”)
  immunity, poison
  infravision: 30' distance per 10HD
  radiates darkness (as spell) to 5'/HD
  saves vs. spells as MU of level equal to HD
  shoots goo (as web spell) from tail (no other tail attack)
  spell use (as MU of level 1d3)
  stench to 5'/HD radius (as stinking cloud)
  super-tough skin (–1d3 AC)
   Roll    
  1
  2
  3
  4
  5
  6
  7
  8
  9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  * on a result 4 or greater over “to hit” roll required with bite attack
  * on failed save vs. poison
  † immediate death or death in a # of turns 
    per 10s digit (at DM’s discretion)
  * on failed save vs. poison
  WRM2: COLOR, ARMOR CLASS
  1
  2
  3
  4
  5
  6
  7
  8
  9
  0
  black
  blue
  brown
  gray
  green
  orange
  purple
  red
  white
  yellow
  10s Digit: AC
   1-10 5
   11-20  6
   21-30  7
  1s Digit: Color
  WRM3: ADDITIONAL TAIL EFFECT*
  Standard worm movement: 9" / 90'(30')
  Standard worm alignment: neutral
  1
  2
  3
  4
  5
  6
  7
  8
  9
  0
  blindness
  coma
  enrage
  feeblemind
  hallucinations
  hearing loss
  nausea (–1 “to hit”)
  paralysis
  poison†
  sleep
  Duration
   1-10 1d3 turns
   11-20  1d6 turns
   21-30  1d10 turns
  Effect
  10s Digit:
  1s Digit:
  “d30 Worm Generator”: © 2015, New Big Dragon Games Unlimited
  d30 Worm Generator
  
SOURCE: textdata/thevault/OSR Generic/Old School Adventures D30 Accessories (OSR)/NBD d30 Encounters; Generators/d30 Worm Generator (OSR).pdf