A full wiki page for this entity is still being generated. Until then, see the recorded facts below.
Sources — 7 recorded facts, by chapter
Chapter 36
- A waist-high pile of grubs spills into the safe room when Carl opens the dungeon door at the chapter's end.
Chapter 37
- Grubs are part of the dungeon's waste-disposal system that home in on corpses and swarm crawlers when no corpses are nearby.
- The system spawns one to fifteen grubs per created corpse when no janitor mobs are near, up to a per-quadrant limit of 5,000.
- Level-two grubs are harmless and give no experience, but eating destroyed remains can level them up into more dangerous forms.
- Brandon's group saw level-three grubs on their way to the rendezvous.
Chapter 39
- A wave of thousands of grubs descended and were wiped out by the rage elemental, leaving Xs on the map as more grubs moved toward their fallen.
- A group of fifteen Grubs in the Pupa Stage sat a quarter mile from the stairs with a counter ticking down from just under 10 hours.