monsters, monsters!
There are
three RPG systems officially publisehd for Lodoss.
First system is "Recode of Lodoss war Companiom" (3 books).
After several years, much rivised ed. was published(lile AD&D for original D&D).This system is named "Lodoss RPG".
After more several years, "Lodoss Island World Guide" was published. This book is suppliment for "Sword World RPG". Sword World RPG was (is?) a very popular game in Japan, so this book was demanded.
I think "Lodoss RPG" is most usuful and "pure" for data source , so I will use it mostly with some consultant with Lodoss Island World Guide.
Monsters?
I think most of them are familiar, though relative strength of them may be different from D&D.
I'll list them in "Monster Level" order. Monster level is similar to CR; the larger, the stronger.
I'll add some descriptions if I think it have to be. Otherwise, names only.
Let's bigin.
Monster level (ML) 1
Wil-O'-the-Wisp : spirit(elemental?) of light in Lodoss.
wolf
goblin
kobold
giant ant
giant centipede
skelton
steel bee : giant wasp with steel-hard body
snake :assumed poisonous
ginant spider :assumed hunters
zombie
giant rat
ML 2
arial jellyfish :giant levitating jellyfish with paralys atack
ghoul
gremline :as small fiend
goblin shaman :goblin with shaman class

giant slug
giant bat :non blood sucker
giant poisonous toad
giant lizard
shade : spirit of darkness, counter part to Wil-O'-the-Wisp
slime : very weak ooze, not very specific
dryad : spirit of tree
bear
hobgoblin
wererat
leprechaun
vampire thorn(?) : blood sucking plant, not undead
ML 3
(giant) amoeba : another ooze
eagle
undine(spelling?) : water elemental
kobold chief : stronger kobold

explained as "naturally stronger kobold"
salamander : fire elemental
giant spider :web sipnner
ginat scorpion
silph(spelling?) : air elemental
demon warrior :low inteligent fiend
gnome : earth elemental, not humanoid
harpy
fairy
werewolf
werebear
vampire bat :small blood sucking bat, not undead
ML 4
centaur
goblin lord : naturaly more stronger goblin
ginat stag beetle
giant mantice
viper
lizardman : lizardfolk
ML 5
wood golem
ogre
gargoyle
gillman(?) :sahuagin, I think
claw beast : ginat feline
hippogriff
pegasus
minotaur
landcrawler :giant worm
lesser vampire :vampire spawn
ML 6
andona (I can't figure) :carrion crawler
energy ball :nyth (M of Faerum) works fine for this one, I think
ghoulcrawler :undead carrion crawler, don't ask me
two-headed snake : one head deliver con poison, another head deliver magical poison that cause confusion
dragon tooth warrior : skelton-lile "instant" construct.
maneater : carnivorous plant that can disguise as neighbou plants
lizard king : king of lizardman
wraith
wight
ML 7
ent : treant
griffon
scylla :from greek myth
hell hound
lesser demon
weretiger
ML 8
cockatrice
sea surpent
troll
flesh golem
mummy
manticore : highly intelligent and cast some spells (supposed to be divine)
lamia : beautiful female human upper body with giant snake lower body. cast arcane spells and shape change to human
ML 9
guard demon :greater demon, cast divine spells
greater demon : cast both aracne and devine spells
giant
doppelgangar :greater doppelganger in D&D term. treated as fiend
mist : mist-like shapeless undead, emit dim yellow light
medusa
ML 10
cyclopse
stone golem
sphinx : seems like gynosphinx
spectre
darkhood :cloak-like undead
wyvern
ML 11
iron golem
chimera
small dragon :without spell casting
basilisik petrifying gaze, poison (con damage, I think)
phantom : ghost
haunt :another ghost
ML 12
ghost : one more ghost

hydra : breath fire
roc
wyrm (wurm?) : wingless dragon, breath fire
arcdemon : arcfiend
efreeti : greater fire elemental
genie : greater air elemental
dragon : most (if not all) dragon in Lodoss breath fire
behemoth : greater earth elemental
fenlile(spelling?) : greater sonw elemental, name taken after northan myth
vampire lord :true vampire
comment:
1.There are no shapeless (D&D like) elemental in Lodoss.
2."Greater elemental" seems to have nearly deity power.
3.I don't know why such many giant vermins are listed.
4.PC (or NPC) humanoids aren't listed as "monsters".
Some more are listed in "Lodoss Island World Guide", but I'm tired now
