# Monsters by Habitat; Underdark Monsters *Source: Monster Manual (2024) p. 375* **Underdark Monsters** | CR | Monsters | |----|----------| | 0 | [Bat](/Rules/Source/bestiary/beast/bat-xmm.md), [Giant Fire Beetle](/Rules/Source/bestiary/beast/giant-fire-beetle-xmm.md), [Lizard](/Rules/Source/bestiary/beast/lizard-xmm.md), [Myconid Sprout](/Rules/Source/bestiary/plant/myconid-sprout-xmm.md), [Rat](/Rules/Source/bestiary/beast/rat-xmm.md), [Shrieker Fungus](/Rules/Source/bestiary/plant/shrieker-fungus-xmm.md), [Spider](/Rules/Source/bestiary/beast/spider-xmm.md) | | 1/8 | [Flumph](/Rules/Source/bestiary/aberration/flumph-xmm.md), [Giant Rat](/Rules/Source/bestiary/beast/giant-rat-xmm.md), [Goblin Minion](/Rules/Source/bestiary/fey/goblin-minion-xmm.md), [Kobold Warrior](/Rules/Source/bestiary/dragon/kobold-warrior-xmm.md), [Stirge](/Rules/Source/bestiary/monstrosity/stirge-xmm.md) | | 1/4 | [Giant Bat](/Rules/Source/bestiary/beast/giant-bat-xmm.md), [Giant Centipede](/Rules/Source/bestiary/beast/giant-centipede-xmm.md), [Giant Lizard](/Rules/Source/bestiary/beast/giant-lizard-xmm.md), [Goblin Warrior](/Rules/Source/bestiary/fey/goblin-warrior-xmm.md), [Grimlock](/Rules/Source/bestiary/aberration/grimlock-xmm.md), [Kuo-toa](/Rules/Source/bestiary/aberration/kuo-toa-xmm.md), [Skeleton](/Rules/Source/bestiary/undead/skeleton-xmm.md), [Swarm of Bats](/Rules/Source/bestiary/beast/swarm-of-bats-xmm.md), [Swarm of Rats](/Rules/Source/bestiary/beast/swarm-of-rats-xmm.md), [Troglodyte](/Rules/Source/bestiary/monstrosity/troglodyte-xmm.md), [Violet Fungus](/Rules/Source/bestiary/plant/violet-fungus-xmm.md), [Winged Kobold](/Rules/Source/bestiary/dragon/winged-kobold-xmm.md), [Zombie](/Rules/Source/bestiary/undead/zombie-xmm.md) | | 1/2 | [Darkmantle](/Rules/Source/bestiary/aberration/darkmantle-xmm.md), [Gas Spore Fungus](/Rules/Source/bestiary/plant/gas-spore-fungus-xmm.md), [Gray Ooze](/Rules/Source/bestiary/ooze/gray-ooze-xmm.md), [Hobgoblin Warrior](/Rules/Source/bestiary/fey/hobgoblin-warrior-xmm.md), [Myconid Adult](/Rules/Source/bestiary/plant/myconid-adult-xmm.md), [Piercer](/Rules/Source/bestiary/aberration/piercer-xmm.md), [Rust Monster](/Rules/Source/bestiary/monstrosity/rust-monster-xmm.md), [Shadow](/Rules/Source/bestiary/undead/shadow-xmm.md), [Swarm of Insects](/Rules/Source/bestiary/beast/swarm-of-insects-xmm.md), [Warhorse Skeleton](/Rules/Source/bestiary/undead/warhorse-skeleton-xmm.md) | | 1 | [Bugbear Warrior](/Rules/Source/bestiary/fey/bugbear-warrior-xmm.md), [Ghoul](/Rules/Source/bestiary/undead/ghoul-xmm.md), [Giant Spider](/Rules/Source/bestiary/beast/giant-spider-xmm.md), [Giant Toad](/Rules/Source/bestiary/beast/giant-toad-xmm.md), [Goblin Boss](/Rules/Source/bestiary/fey/goblin-boss-xmm.md), [Kuo-toa Whip](/Rules/Source/bestiary/aberration/kuo-toa-whip-xmm.md), [Lacedon Ghoul](/Rules/Source/bestiary/undead/lacedon-ghoul-xmm.md), [Myconid Spore Servant](/Rules/Source/bestiary/plant/myconid-spore-servant-xmm.md), [Ogrillon Ogre](/Rules/Source/bestiary/giant/ogrillon-ogre-xmm.md), [Psychic Gray Ooze](/Rules/Source/bestiary/ooze/psychic-gray-ooze-xmm.md), [Salamander Fire Snake](/Rules/Source/bestiary/elemental/salamander-fire-snake-xmm.md), [Specter](/Rules/Source/bestiary/undead/specter-xmm.md) | | 2 | [Carrion Crawler](/Rules/Source/bestiary/monstrosity/carrion-crawler-xmm.md), [Gargoyle](/Rules/Source/bestiary/elemental/gargoyle-xmm.md), [Gelatinous Cube](/Rules/Source/bestiary/ooze/gelatinous-cube-xmm.md), [Ghast](/Rules/Source/bestiary/undead/ghast-xmm.md), [Gibbering Mouther](/Rules/Source/bestiary/aberration/gibbering-mouther-xmm.md), [Grick](/Rules/Source/bestiary/aberration/grick-xmm.md), [Intellect Devourer](/Rules/Source/bestiary/aberration/intellect-devourer-xmm.md), [Mimic](/Rules/Source/bestiary/monstrosity/mimic-xmm.md), [Minotaur Skeleton](/Rules/Source/bestiary/undead/minotaur-skeleton-xmm.md), [Myconid Sovereign](/Rules/Source/bestiary/plant/myconid-sovereign-xmm.md), [Nothic](/Rules/Source/bestiary/aberration/nothic-xmm.md), [Ochre Jelly](/Rules/Source/bestiary/ooze/ochre-jelly-xmm.md), [Ogre](/Rules/Source/bestiary/giant/ogre-xmm.md), [Ogre Zombie](/Rules/Source/bestiary/undead/ogre-zombie-xmm.md), [Poltergeist](/Rules/Source/bestiary/undead/poltergeist-xmm.md), [Quaggoth](/Rules/Source/bestiary/monstrosity/quaggoth-xmm.md), [Swarm of Stirges](/Rules/Source/bestiary/monstrosity/swarm-of-stirges-xmm.md) | | 3 | [Basilisk](/Rules/Source/bestiary/monstrosity/basilisk-xmm.md), [Bugbear Stalker](/Rules/Source/bestiary/fey/bugbear-stalker-xmm.md), [Doppelganger](/Rules/Source/bestiary/monstrosity/doppelganger-xmm.md), [Flaming Skeleton](/Rules/Source/bestiary/undead/flaming-skeleton-xmm.md), [Goblin Hexer](/Rules/Source/bestiary/fey/goblin-hexer-xmm.md), [Grell](/Rules/Source/bestiary/aberration/grell-xmm.md), [Hell Hound](/Rules/Source/bestiary/fiend/hell-hound-xmm.md), [Hobgoblin Captain](/Rules/Source/bestiary/fey/hobgoblin-captain-xmm.md), [Hook Horror](/Rules/Source/bestiary/monstrosity/hook-horror-xmm.md), [Kuo-toa Monitor](/Rules/Source/bestiary/aberration/kuo-toa-monitor-xmm.md), [Minotaur of Baphomet](/Rules/Source/bestiary/monstrosity/minotaur-of-baphomet-xmm.md), [Phase Spider](/Rules/Source/bestiary/monstrosity/phase-spider-xmm.md), [Quaggoth Thonot](/Rules/Source/bestiary/monstrosity/quaggoth-thonot-xmm.md), [Spectator](/Rules/Source/bestiary/aberration/spectator-xmm.md), [Vampire Familiar](/Rules/Source/bestiary/humanoid/vampire-familiar-xmm.md), [Water Weird](/Rules/Source/bestiary/elemental/water-weird-xmm.md), [Wight](/Rules/Source/bestiary/undead/wight-xmm.md) | | 4 | [Black Pudding](/Rules/Source/bestiary/ooze/black-pudding-xmm.md), [Bone Naga](/Rules/Source/bestiary/undead/bone-naga-xmm.md), [Chuul](/Rules/Source/bestiary/aberration/chuul-xmm.md), [Ettin](/Rules/Source/bestiary/giant/ettin-xmm.md), [Flameskull](/Rules/Source/bestiary/undead/flameskull-xmm.md), [Ghost](/Rules/Source/bestiary/undead/ghost-xmm.md), [Juvenile Shadow Dragon](/Rules/Source/bestiary/dragon/juvenile-shadow-dragon-xmm.md) | | 5 | [Beholder Zombie](/Rules/Source/bestiary/undead/beholder-zombie-xmm.md), [Earth Elemental](/Rules/Source/bestiary/elemental/earth-elemental-xmm.md), [Otyugh](/Rules/Source/bestiary/aberration/otyugh-xmm.md), [Roper](/Rules/Source/bestiary/aberration/roper-xmm.md), [Salamander](/Rules/Source/bestiary/elemental/salamander-xmm.md), [Troll](/Rules/Source/bestiary/giant/troll-xmm.md), [Umber Hulk](/Rules/Source/bestiary/monstrosity/umber-hulk-xmm.md), [Vampire Spawn](/Rules/Source/bestiary/undead/vampire-spawn-xmm.md), [Wraith](/Rules/Source/bestiary/undead/wraith-xmm.md), [Xorn](/Rules/Source/bestiary/elemental/xorn-xmm.md) | | 6 | [Cyclops Sentry](/Rules/Source/bestiary/giant/cyclops-sentry-xmm.md), [Drider](/Rules/Source/bestiary/monstrosity/drider-xmm.md), [Ghast Gravecaller](/Rules/Source/bestiary/undead/ghast-gravecaller-xmm.md), [Hobgoblin Warlord](/Rules/Source/bestiary/fey/hobgoblin-warlord-xmm.md), [Kuo-toa Archpriest](/Rules/Source/bestiary/aberration/kuo-toa-archpriest-xmm.md) | | 7 | [Grick Ancient](/Rules/Source/bestiary/aberration/grick-ancient-xmm.md), [Mind Flayer](/Rules/Source/bestiary/aberration/mind-flayer-xmm.md), [Stone Giant](/Rules/Source/bestiary/giant/stone-giant-xmm.md), [Violet Fungus Necrohulk](/Rules/Source/bestiary/plant/violet-fungus-necrohulk-xmm.md) | | 8 | [Cloaker](/Rules/Source/bestiary/aberration/cloaker-xmm.md), [Fomorian](/Rules/Source/bestiary/giant/fomorian-xmm.md), [Spirit Naga](/Rules/Source/bestiary/fiend/spirit-naga-xmm.md), [Vampire Nightbringer](/Rules/Source/bestiary/undead/vampire-nightbringer-xmm.md) | | 9 | [Fire Giant](/Rules/Source/bestiary/giant/fire-giant-xmm.md) | | 10 | [Aboleth](/Rules/Source/bestiary/aberration/aboleth-xmm.md), [Cyclops Oracle](/Rules/Source/bestiary/giant/cyclops-oracle-xmm.md) | | 11 | [Behir](/Rules/Source/bestiary/monstrosity/behir-xmm.md), [Dao](/Rules/Source/bestiary/elemental/dao-xmm.md), [Mind Flayer Arcanist](/Rules/Source/bestiary/aberration/mind-flayer-arcanist-xmm.md) | | 13 | [Beholder](/Rules/Source/bestiary/aberration/beholder-xmm.md), [Shadow Dragon](/Rules/Source/bestiary/dragon/shadow-dragon-xmm.md), [Vampire](/Rules/Source/bestiary/undead/vampire-xmm.md) | | 14 | [Death Tyrant](/Rules/Source/bestiary/undead/death-tyrant-xmm.md) | | 15 | [Purple Worm](/Rules/Source/bestiary/monstrosity/purple-worm-xmm.md), [Salamander Inferno Master](/Rules/Source/bestiary/elemental/salamander-inferno-master-xmm.md), [Vampire Umbral Lord](/Rules/Source/bestiary/undead/vampire-umbral-lord-xmm.md) | ^underdark-monsters