An Incomplete List of Glacier Dungeon Inhabitants

A while ago I had an idea for a megadungeon that was carved into a giant glacier or ice shelf, dozens of miles thick. As well as the normal inhabitants of a dungeon, PCs would have to deal with the brutal cold and environmental hazards such as collapses and so forth. I'm fairly sure I discussed it on this episode of A Gaming Podcast About Nothing; but in any event it's what I want to run when Patrick finally finishes The Veins of the Earth, using his cave system rules for icy ones.

Apropos of that, here is an incomplete list of glacier dungeon inhabitants. These are things that are either explicitly arctic/mountain/ice based, or logically should be so. (Monsters like crab-men should definitely be there: some of the biggest crabs in the world are found in the Arctic Ocean.)

Straight from the 2nd edition Monstrous Manual

Beholder and relatives
Cave fisher
Crabman
Deepspawn
Displacer Beast
Red Dragon
White Dragon
Amethyst Dragon
Crystal Dragon
Silver Dragon
Deep Dragon
Mercury Dragon
Firedrake
Mountain Dwarf
Galeb Duhr
Cloud Giant
Cyclops/Cyclopskin
Formorian
Frost Giant
Mountain Giant
Grell
Grimlock
Hook horror
Cryohydra
Ice mephit
Kuo-Toa
Mind Flayer
Piercer
White Pudding
Quaggoth
Remorhaz
Selkie (in glacial lakes)
Ice toad
Troglodyte
Ice troll
Winter Wolf
Purple Worm
Giant bloodworm
Yeti

Non-existent at this time but formed by putting the word 'ice' in front of a Monstrous Manual creature

Ice derro
Ice duergar
Ice drow
Ice marid
Ice ghoul
Ice ghost
Ice sverfneblin
Ice spriggan
Ice goblin
Ice hag
Ice lich
Ice werebear (were polar bear)
Ice medusa
Ice merrow (in glacial lakes)
Ice skeleton
Ice spectre
Ice sphinx
Ice vampire
Ice wight
Ice wraith
Ice xorn
Ice zombie

Straight from the Planescape Monstrous Compendia

Gelugon
Darkweaver
Frost salamander
Immoth
Ice paraelemental

Other

Since, as any fule know, hell is a place of cold and ice, in the lower regions of the great ice glacier there will also be encountered demons and devils, who slip in from the Abyss or the Nine Hells. Also, magical constructs and undead can also make appearances.