Yellow Mould

From OSE SRD

Deadly fungus that covers walls, ceilings, and other surfaces.


Armour Class No hit roll required
Hit Dice 2* (9hp)
Attacks 1 × spores (1d6 + choking)
THAC0 18 [+1]
Movement 0
Saving Throws D12 W13 P14 B15 S16 (2)
Morale 12
Alignment Neutral
XP 25
Number Appearing 1d8 (1d4)
Treasure Type None

  • Area: Each 10 square feet (e.g. 2’ × 5’) covered in yellow mould is treated as one “individual”. (A 10’ × 10’ area would consist of 10 individual moulds.)
  • Immunity: Unharmed by all attacks but fire (a burning torch does 1d4 damage).
  • Spore cloud: 50% chance of attacking if touched (or damaged): releases a cloud of spores affecting all within a 10’ cube area.
  • Choking: Save versus death or die within 6 rounds.
  • Erosion: Wood or leather in contact with the mould will be eaten away.