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Rat🔗

Multitudinous, disease-ridden rodents that will eat anything. Avoid contact with humans but may attack if defending their nest or if summoned and commanded by magic (e.g., see Wererat.

  • Disease: Bite has a 1-in-20 chance of infecting the target (save versus poison). The disease has a 1-in-4 chance of being deadly (die in 1d6 days). Otherwise, the victim is sick and bedridden for one month.
  • Afraid of fire: Will flee fire, unless forced to fight by summoner.
  • Attacking in water: May attack without penalty; excellent swimmers.

Giant Rat🔗

3’ long (or larger), with black or grey fur. Often live in dark, dungeon areas and close to undead monsters.


Armor Class 7 [12]
Hit Dice ½ (2hp)
Attacks 1 × bite (1d3 + disease)
THAC0 19 [0]
Movement 120’ (40’) / 60’ (20’) swimming
Saving Throws D12 W13 P14 B15 S16 (1)
Morale 8
Alignment Neutral
XP 5
Number Appearing 3d6 (3d10)
Treasure Type C

  • Disease; Afraid of fire; Attacking in water: See main entry.

Normal Rat🔗

Swarming packs of 6” to 2’ long individuals, with brown or grey fur.


Armor Class 9 [10]
Hit Dice 1hp
Attacks 1 × bite per pack (1d6 + disease)
THAC0 19 [0]
Movement 60’ (20’) / 30’ (10’) swimming
Saving Throws D14 W15 P16 B17 S18 (NH)
Morale 5
Alignment Neutral
XP 5
Number Appearing 5d10 (2d10)
Treasure Type L

  • Disease; Afraid of fire; Attacking in water: See main entry.
  • Pack: Each group of 5–10 rats attacks as a pack. Each pack makes a single attack roll against one creature.
  • Engulf: The creature attacked must save versus death or fall prone, unable to attack until able to stand up again.