5e Underdark Monsters

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Underdark Monsters, Quality and Featured[edit]

These monsters have been vetted through the Featured Articles or Quality Articles process and are suitable for any normal campaign.

Name CR Speed Size Type Alignment


Underdark Monsters[edit]

Name CR Speed Size Type Alignment
Abyssal Dragon 13 40 ft., fly 60 ft. Huge dragon chaotic evil
Abyssal Terror 7 30 ft., fly 60 ft. Large undead neutral evil
Acid Bug 1 30 ft., fly 30 ft. Small beast unaligned
Adult Mercury Dragon 14 40 ft., climb 40 ft., fly 80 ft. Huge dragon chaotic good
Adult Purple Dragon 15 40 ft., climb 40 ft., fly 80 ft. Huge dragon lawful evil
Afilate 3 30 ft., climb 30 ft. Small aberration unaligned
Afilate Abomination 9 30 ft., climb 30 ft. Medium aberration unaligned
Ahrimaniphim 14 40 ft., fly 70 ft. Large undead neutral evil
Al-Mi'raj 1/4 40 ft., burrow 15 ft. Small beast unaligned
Amphisbaena 3 30 ft., swim 30 ft. Large monstrosity unaligned
Ancient Crystal 12 20 ft., fly 90 ft. (hover) Huge elemental lawful good
Ancient Mercury Dragon 21 40 ft., climb 40 ft. fly 80 ft. Gargantuan dragon chaotic good
Ancient Purple Dragon 22 40 ft., climb 40 ft., fly 80 ft. Gargantuan dragon lawful evil
Apocalypse Ooze 22 25 ft., climb 25 ft. Huge ooze unaligned
Armonto 1/2 25 ft., burrow 25 ft. Large aberration neutral evil
Armored Goblin 1/2 30 ft. Small humanoid neutral evil
Armored Troll 8 30 ft. Large giant chaotic evil
Atropal 30 10 ft., fly 80 ft. (hover) Huge undead lawful evil
Atrophus 4 40 ft. Large monstrosity chaotic evil
Aura Ooze 1 15 ft., climb 10 ft. Medium ooze unaligned
Bale Taurus 8 40 ft., fly 60 ft. Large monstrosity neutral evil
Battle Master 3 30 ft. Medium humanoid any alignment
Black Orc 3 30 ft. Medium humanoid lawful evil
Black Pudding Sea 24 20 ft., climb 20 ft. Gargantuan ooze unaligned
Black Slime 20 ft. Medium ooze unaligned
Blazeclaw 11 40 ft. Large monstrosity chaotic evil
Blazeclaw Burner 14 40 ft. Large monstrosity chaotic evil
Blight Dragon 16 30 ft., fly 30 ft. Huge dragon neutral evil
Blood Beast 6 20 ft., climb 20 ft., swim 20 ft. Large ooze neutral evil
Blood Ooze 3 20 ft., climb 20 ft., swim 20 ft. Medium ooze unaligned
Bonecrusher 7 40 ft. Large undead lawful evil
Bouncing Fungus 0 20 ft. Small plant unaligned
Brown Slime 3 20 ft., climb 20 ft. Large ooze unaligned
Bugbear Curser 2 30 ft. Medium humanoid chaotic evil
Bugbear Doomclaw 10 30 ft. Medium humanoid chaotic evil
Bugbear Elite Warrior 8 30 ft. Large humanoid chaotic evil
Bugbear Hammerer 2 30 ft. Medium humanoid chaotic evil
Bugbear Savage 18 40 ft. Medium humanoid chaotic evil
Bugbear Shaman 3 30 ft. Medium humanoid chaotic evil
Bugbear Vileclaw 4 30 ft. Medium humanoid chaotic evil
Cave Troll 7 30 ft., climb 30 ft. Large giant chaotic evil
Cavigog 5 20 ft. Large monstrosity chaotic evil
Centripetal 1/4 15 ft. Small plant unaligned
Chryssalid 2 50 ft., climb 50 ft. Medium monstrosity unaligned
Corpse Worm 1/8 10 ft., burrow 5 ft., swim 20 ft. Tiny beast unaligned
Crag Spider 3 30 ft., climb 30 ft. Large beast unaligned
Crystal Drake 7 30 ft., fly 60 ft. Large dragon neutral good
Cyclops 6 40 ft. Large giant neutral
Dalasmir 8 10 ft., burrow 30 ft., fly 30 ft. (hover) Large monstrosity neutral evil
Dalasmir Spawn 1 5 ft., burrow 25 ft., fly 30 ft. (hover) Tiny monstrosity neutral evil
Dark Orb 1 0 ft., fly 40 ft. (hover) Small elemental neutral
Dark Tormentor 14 30 ft. Large fiend neutral evil
Death Giant 9 40 ft. Huge giant neutral evil
Death Titan 21 40 ft. Gargantuan giant neutral evil
Deepspawn 10 20 ft., swim 20 ft. Huge aberration chaotic evil
Destrachan 7 30 ft., climb 20 ft. Large aberration lawful evil
Devourer Black Blood 21 40 ft. Huge fiend chaotic evil
Dismembered One 8 10 ft., climb 10 ft. Large ooze chaotic evil
Dokufu 22 50 ft., burrow 50 ft., climb 50 ft. Gargantuan fiend neutral evil
Doom Flumph 30 30 ft., fly 60 ft. (hover) Medium aberration lawful evil
Dracogoblin Warrior 1 30 ft. Small humanoid neutral evil
Dread Bat 2 20 ft., fly 60 ft. Large beast unaligned
Dread Dalasmir 18 15 ft., burrow 35 ft., fly 40 ft. (hover) Huge monstrosity neutral evil
Dread Rat 1 30 ft. Large beast unaligned
Drooling One 1/4 15 ft., climb 15 ft. Medium ooze chaotic evil
Drow Chosen Consort 9 30 ft. Medium humanoid neutral evil
Drow Lady of Spiders 13 30 ft. Medium humanoid neutral evil
Drow Shadowsword 9 30 ft. Medium humanoid neutral evil
Duergar Darkmind 3 25 ft. Medium humanoid lawful evil
Duergar Ironskin 6 25 ft. Medium humanoid lawful evil
Duergar Theurge 6 25 ft. Medium humanoid lawful evil
Dugnutt 2 20 ft. Small humanoid neutral good
Eldritch Knight 3 30 ft. Medium humanoid any alignment
Empowered Orc 5 30 ft. Medium humanoid chaotic evil
Entombed 4 30 ft. Large undead neutral evil
Entombed Crypt Lord 18 30 ft. Huge undead neutral evil
Entombed Marauder 7 30 ft. Huge undead neutral evil
Ettercap, Variant 3 30 ft., climb 30 ft. Medium monstrosity neutral evil
Ettin Wiccan 7 40 ft. Large giant chaotic evil
Ettin, Greater 7 40 ft. Large giant chaotic evil
Excremental 1/2 20 ft. Large elemental unaligned
Excremini 1/8 15 ft. Small elemental unaligned
False Death Tyrant 4 0 ft., fly 30 ft. (hover) Large undead chaotic evil
Fiend Spider 6 50 ft., climb 50 ft. Huge monstrosity neutral evil
Fire Titan 18 30 ft. Gargantuan giant lawful evil
Flechette Slime 1/2 10 ft., climb 10 ft. Medium ooze unaligned
Force Orb 1 0 ft., fly 50 ft. (hover) Small elemental neutral
Foul Seeker 2 25 ft. Medium aberration chaotic evil
Foulblood Kilkorn 12 30 ft., fly 30 ft. Large humanoid lawful evil
Galien 1 25 ft. Medium monstrosity lawful good
Geodic 8 30 ft. Large elemental neutral
Ghorgon 12 40 ft. Huge monstrosity chaotic evil
Giant Rat Skeleton 1/4 30 ft. Small undead lawful evil
Giant Slime 5 25 ft., climb 25 ft. Large ooze unaligned
Gloom Stalker 5 30 ft. Medium humanoid any alignment
Gobbol 1 30 ft. Small humanoid chaotic evil
Goblin Alchemist 1/2 30 ft. Small humanoid neutral evil
Goblin Creeper 16 30 ft. Small humanoid neutral evil
Goblin Defender 1/2 30 ft. Small humanoid neutral evil
Goblin Hunter 1 30 ft. Small humanoid neutral evil
Goblin Lowwayman 1 30 ft. Small humanoid neutral evil
Goblin Outrider 2 30 ft. Small humanoid neutral evil
Goblin Romancist 9 30 ft. Small humanoid any chaotic alignment
Goblin Rouser 1/2 30 ft. Small humanoid neutral evil
Goblin Shaman 3 30 ft. Small humanoid neutral evil
Goblin Sharpshooter 1 30 ft. Small humanoid neutral evil
Goblin Warrior 1 30 ft. Small humanoid neutral evil
Goblin Wolf Rider 1/2 30 ft. Small humanoid neutral evil
Gorebull 12 50 ft. Huge monstrosity chaotic evil
Gray Oozeling 1/4 20 ft., climb 20 ft. Small ooze unaligned
Great Crystal 8 15 ft., fly 60 ft. (hover) Huge elemental lawful good
Greater Wight 5 30 ft. Medium undead neutral evil
Grimlock Mindspeaker 1/2 30 ft. Medium humanoid neutral evil
Grimworm 10 50 ft., burrow 30 ft. Huge fiend neutral evil
Half-Fiend Minotaur 5 40 ft., fly 40 ft. Large monstrosity any evil alignment
Half-Illithid Lizardfolk 2 30 ft., swim 30 ft. Medium aberration neutral evil
Heckler 2 30 ft., fly 30 ft. Small fiend neutral evil
Hobgoblin Black Warden 10 30 ft. Medium humanoid lawful evil
Hobgoblin Commander 2 30 ft. Medium humanoid lawful evil
Hobgoblin Darkblade 6 30 ft. Medium humanoid lawful evil
Hobgoblin High Priest 10 30 ft. Medium humanoid lawful evil
Hobgoblin Monarch 14 30 ft. Medium humanoid lawful evil
Hobgoblin Priest 5 30 ft. Medium humanoid lawful evil
Hobgoblin Seer 2 30 ft. Medium humanoid lawful evil
Hobgoblin War Priest 5 30 ft. Medium humanoid lawful evil
Horror Head 2 30 ft., climb 30 ft. Small undead neutral evil
Indigo Slime 1/2 10 ft., climb 10 ft. Medium ooze unaligned
Iridescent Beetle 1/4 30 ft., burrow 10 ft., fly 10 ft. Small beast neutral
Iron Ogre 5 40 ft. Large giant chaotic evil
Jazul 5 30 ft. Large giant chaotic evil
Jazul Shiredo 7 30 ft. Large giant chaotic evil
Jelly Cube 1/8 15 ft. Tiny ooze unaligned
Jewel Ooze 10 25 ft., climb 25 ft. Large ooze unaligned
Jillyfleur 8 0 ft., swim 60 ft. Large beast unaligned
Kalkara 6 30 ft. Large aberration neutral evil
Karatar 21 60 ft. Huge giant chaotic evil
Keymaster 7 30 ft. Medium aberration lawful neutral
Kilko 1/8 25 ft. Tiny humanoid lawful evil
Kilkorn 4 30 ft. Medium humanoid lawful evil
Kilkorn Enforcer 7 30 ft. Medium humanoid lawful evil
Kilkorn Hunter 6 30 ft. Medium humanoid lawful evil
Kilkorn Knight 8 30 ft. Medium humanoid lawful evil
Kilkorn Overlord 21 30 ft., fly 30 ft. Huge fiend lawful evil
Kilkorn Vestige 13 30 ft., fly 30 ft. Large fiend lawful evil
Kilkorn Zealot 5 30 ft. Medium humanoid lawful evil
Knuckledragger 4 40 ft. Large giant chaotic evil
Kobold Boss 2 30 ft. Small humanoid lawful evil
Kobold Skirmisher 2 30 ft. Small humanoid lawful evil
Kobold Standard-bearer 1/4 30 ft. Small humanoid lawful evil
Kobold, Dragontouched 1/2 30 ft. Small humanoid lawful evil
Lead Giant 9 40 ft., climb 40 ft. Huge giant chaotic evil
Lead Titan 18 40 ft., climb 40 ft. Gargantuan giant chaotic evil
Light Orb 1 0 ft., fly 40 ft. (hover) Small elemental neutral
Luring Dragon 8 30 ft., climb 30 ft., fly 60 ft. Large dragon neutral evil
Lycanthropickle, Variant 1/8 30 ft. (20 ft. in hybrid form; 0 ft. in pickle form) Medium plant neutral evil
Mantis Warrior 1/4 35 ft. Medium monstrosity lawful neutral
Mantis Youth 1/8 5 ft., fly 25 ft. Medium monstrosity lawful neutral
Medusa Snake 6 30 ft., swim 30 ft. Medium monstrosity unaligned
Mercury Dragon Wyrmling 1 30 ft., climb 30 ft., fly 60 ft. Medium dragon chaotic good
Metal Slime 3 30 ft., climb 30 ft. Medium ooze unaligned
Mglak 4 30 ft., climb 30 ft. Medium undead neutral evil
Mind Brute 14 40 ft. Large aberration lawful evil
Mind Flayer Skeleton 3 30 ft. Medium undead lawful evil
Mindflyer 7 20 ft., fly 50 ft. Medium aberration lawful evil
Minigoblin 0 20 ft. Tiny humanoid lawful evil
Mithral Tortoise 10 30 ft., burrow 30 ft., climb 30 ft., swim 25 ft. Huge beast unaligned
Moss Knight 1/4 30 Medium monstrosity
Mulrak 1/2 20 ft. Medium humanoid neutral evil
Mulrak Icon of Brutality 15 30 ft., burrow 20 ft. Huge humanoid neutral evil
Mulrak Jewel of Madness 11 30 ft. Huge humanoid neutral evil
Mulrak Mindbreaker 6 30 ft. Large humanoid neutral evil
Mulrak Stonebreaker 6 30 ft. Large humanoid neutral evil
Myoxat 1 30 ft., climb 30 ft., swim 30 ft. Large monstrosity neutral good
Necro-knight 5 30 ft. Medium humanoid any non-good alignment
Necro-knight Commander 8 30 ft. Medium humanoid any non-good alignment
Night Dragon 4 30 ft., fly 60 ft. Medium dragon neutral
Night Goblin 1/4 30 ft. Small humanoid neutral evil
Night Goblin Fanatic 1/2 30 ft. Small humanoid neutral evil
Nightcrawler 19 50 ft., burrow 30 ft. Gargantuan undead chaotic evil
Nightshade Zombie 5 30 ft. Medium undead lawful evil
Nightstriker Serpent 5 30 ft. Large monstrosity neutral evil
Nightwalker 16 40 ft. Huge undead chaotic evil
Nightwing 14 20 ft., fly 60 ft. Huge undead chaotic evil
Nothic Skeleton 2 30 ft. Medium undead lawful evil
Ogre Bull Priest 4 40 ft. Large giant chaotic evil
Ogre Mage 6 40 ft. Large giant chaotic evil
Ogre Maneater 3 40 ft. Large giant chaotic neutral
Ogre Skeleton 2 40 ft. Large undead lawful evil
Ogre Storm Shaman 3 40 ft. Large giant chaotic evil
Ogre Thinker 3 40 ft. Large giant lawful evil
Ogre Warlord 10 40 ft. Large giant chaotic evil
Ooze, Arcane 5 20 ft., climb 20 ft. Large ooze unaligned
Oozing Champion 5 30 ft., climb 30 ft. Medium ooze chaotic evil
Oozing Lord 12 30 ft., climb 30 ft. Large ooze chaotic evil
Oozing One 2 20 ft., climb 20 ft. Medium ooze chaotic evil
Oracle of Kurtulmak 5 35 ft. Small humanoid lawful evil
Orc Big 'Un 2 30 ft. Medium humanoid chaotic evil
Orc Brute of Bahgtru 3 35 ft., climb 30 ft. Large humanoid unaligned
Orc Godspeaker 14 30 ft. Medium humanoid chaotic evil
Orc Impaler 2 30 ft. Medium humanoid chaotic evil
Orc Minion 1/4 30 ft. Medium humanoid chaotic evil
Orc Savant 2 30 ft. Medium humanoid chaotic neutral
Orc Sovereign 12 30 ft. Medium humanoid chaotic evil
Orog Devastator 20 50 ft. Medium humanoid chaotic evil
Patchworkman 4 25 ft. Medium undead any evil alignment
Phantasm 10 0 ft., fly 60 ft. (hover) Large undead neutral evil
Plague Swimmer 5 30 ft., swim 40 ft. Large aberration chaotic evil
Plague Zombie 1/2 20 ft. Medium undead neutral evil
Possessed Ooze Knight 13 25 ft., climb 25 ft. Large ooze neutral evil
Pseudonatural Troll 12 60 ft. Large aberration chaotic evil
Psyche Worm 11 30 ft., burrow 30 ft. Large aberration neutral evil
Purple Dragon Wyrmling 2 30 ft., climb 30 ft., fly 60 ft. Medium dragon lawful evil
Pyrogodon 12 40 ft., burrow 40 ft., climb 40 ft. Huge elemental chaotic evil
Pyrogodon Suzerain 20 40 ft., burrow 40 ft., climb 40 ft. Huge elemental chaotic evil
Radiant Shardling 3 5 ft., fly 30 ft. (hover) Tiny elemental lawful good
Rancid One 3 10 ft., climb 10 ft. Medium ooze chaotic evil
Reflective Ooze 10 20 ft., climb 20 ft. Large ooze unaligned
Rotbringer 19 30 ft., fly 60 ft. Medium undead chaotic evil
Rust Monster Skeleton 1/4 10 ft. Medium undead neutral evil
Shade Rat 1/2 40 ft. Medium beast unaligned
Shadow Eye 2 15 ft. Small aberration lawful evil
Shadow Kobold 2 30 ft. Small humanoid chaotic evil
Shadow Snatcher 7 30 ft. Medium monstrosity chaotic evil
Shadow Soldier, Rank 1 1/2 30 ft. Medium undead lawful neutral
Shadow Soldier, Rank 2 2 30 ft. Medium undead lawful neutral
Shadow Soldier, Rank 3 3 30 ft. Medium undead lawful neutral
Shadow Soldier, Rank 4 5 30 ft. Large undead lawful neutral
Shadow Soldier, Rank 5 8 40 ft. Large undead lawful neutral
Shardling 1/2 5 ft., fly 30 ft. (hover) Tiny elemental lawful good
Shifting Jelly 5 10 ft., climb 10 ft. (30 ft. in humanoid or hybrid form) Medium ooze chaotic evil
Shoggoth 13 30 ft., swim 30 ft. Huge aberration chaotic neutral
Slimy Dragon 16 40 ft., fly 40 ft. (see Stuck below) Huge dragon unaligned
Snotling 0 20 ft. Tiny humanoid neutral evil
Soul Scorcher 6 0 ft., fly 60 ft. (hover) Medium undead neutral evil
Spyder-Fiend 8 40 ft., climb 40 ft. Large fiend Chaotic evil
Stone Titan 15 40 ft. Gargantuan giant neutral
Stoneborn 2 30 ft. Medium humanoid lawful evil
Stoneborn Exalted 19 30 ft. Medium elemental lawful evil
Stoneborn Granite 7 30 ft. Medium humanoid lawful evil
Stonefin 6 0 ft., burrow 40 ft., swim 40 ft. Large elemental neutral
Swarm of Corpse Worms 1/2 10 ft., burrow 10 ft., climb 10 ft., swim 40 ft. Medium beast unaligned
Swarm of Minigoblins 1/4 20 ft. Medium humanoid lawful evil
Swarm of Radiant Shardlings 4 5 ft., fly 30 ft. (hover) Medium elemental lawful good
Swarm of Shardlings 3 5 ft., fly 30 ft. (hover) Medium elemental lawful good
Swarm of Tainted Shardlings 4 5 ft., fly 30 ft. (hover) Medium elemental chaotic evil
Swarming Slime 1 20 ft., climb 20 ft. Small ooze unaligned
Tainted Shardling 3 5 ft., fly 30 ft. (hover) Tiny elemental chaotic evil
Tanarukk Warchief 8 30 ft. Medium fiend chaotic evil
Tanarukk Warlord 14 30 ft. Medium fiend chaotic evil
Templar 5 20 ft., climb 20 ft., swim 40 ft. Large aberration chaotic evil
Terror Slime 21 45 ft., climb 35 ft. Gargantuan ooze chaotic evil
Thessalhydra 18 40 ft. Huge monstrosity neutral
Thoul 1 30 ft. Medium humanoid neutral evil
Troll Mystic 6 30 ft. Large giant chaotic evil
Tyrant Moth 17 20 ft., fly 80 ft. Gargantuan beast unaligned
Undying 15 30 ft. Medium undead neutral evil
Vampire Dwarf 7 25 ft. Medium undead lawful evil
Vampire Gnome 5 30 ft. Small undead neutral evil
War Troll 12 30 ft. Large giant lawful evil
Warlock of the Hexblade 6 30 ft. Medium humanoid any alignment
Warlock of the Undead 2 30 ft. Medium humanoid any alignment
Warrior, Kobold 1 30 ft. Small humanoid lawful evil
Watcher Knight 2 20 ft. Large monstrosity lawful neutral
Web Drake 5 40 ft., climb 40 ft., fly 40 ft. Large dragon neutral
Werespider 4 30 ft. (30 ft., climb 30 ft. in spider or hybrid form) Medium humanoid neutral evil
Wight King 9 30 ft. Medium undead lawful evil
Wight Tyrant 8 30 ft. Medium undead neutral evil
Winged Goblin 1/2 20 ft., fly 40 ft. Small humanoid neutral evil
Xalitik 7 30 ft., fly 60 ft. Large fiend neutral evil
Xalitik Flaremaster 17 30 ft., fly 60 ft. Large fiend neutral evil
Xenogmir 7 30 ft., burrow 30 ft. Large monstrosity neutral evil
Xorn Crusthide 17 20 ft., burrow 20 ft. Large elemental neutral
Yezzogaunt 13 0 ft., fly 40 ft. (hover) Huge aberration neutral
Young Dalasmir 5 10 ft., burrow 30 ft., fly 30 ft. (hover) Medium monstrosity neutral evil
Young Mercury Dragon 7 40 ft., climb 40 ft., fly 80 ft. Large dragon chaotic good
Young Purple Dragon 8 40 ft., climb 40 ft., fly 80 ft. Large dragon lawful evil
Zarogmir 8 10 ft., burrow 30 ft., fly 30 ft. (hover) Large monstrosity neutral evil
Zaukharai 5 40 ft. Large monstrosity neutral evil
Zerfallen Cavern Goblin 1/2 30 ft. Small humanoid neutral evil
Zombie, Kobold 1/4 20 ft. Small undead neutral evil

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