Underground Random Encounters CR 6 v2
| d100 | Total CR | Name | Numbers | CR | Type | Size | Book |
| 1-2 | 6 | Human Commoner Zombie | 20 | 1/2 | Undead | Medium | MM1 |
| 3-4 | 6 | Illithocyte | 5 | 2 | Aberration | Small | Dragon #337 |
| 5-6 | 6 | Iron Half-Golem | 2 | 4 | Construct | Medium | MM2 |
| 7-8 | 6 | Ixzan | 2 | 4 | Aberration | Medium | Lost Empires of Faerûn |
| 9-10 | 6 | Juvenile Mist Dragon | 1 | 6 | Dragon | Medium | Dragons of Faerûn |
| 11-12 | 6 | Lesser Bonedrinker | 2 | 4 | Undead | Small | MM3 |
| 13-14 | 6 | Lith | 1 | 6 | Magical Beast | Medium | Underdark |
| 15-16 | 6 | Living Wall Manticore | 1 | 6 | Undead | Medium | Dragon #343 |
| 17 | 6 | Medium Ectoplasmic Vermin | 11 | 1 | Vermin | Medium | Ghostwalk |
| 18 | 6 | Medium Husk Spider | 5 | 2 | Undead | Medium | Drow of the Underdark |
| 19 | 6 | Meenlock | 3 | 3 | Aberration | Tiny | MM2 |
| 20 | 6 | Mindshredder Warrior | 2 | 4 | Aberration | Large | MM3 |
| 21 | 6 | Minor Flame Snake | 11 | 1 | Magical Beast | Small | Fiend Folio |
| 22 | 6 | Minotaur | 2 | 4 | Humanoid | Large | MM1 |
| 23 | 6 | Minotaur of Legend | 1 | 6 | Outsider | Large | MM2 |
| 24 | 6 | Minotaur Skeleton | 3 | 3 | Undead | Large | Libris Mortis |
| 25 | 6 | Minotaur Zombie | 2 | 4 | Undead | Large | MM1 |
| 26 | 6 | Murk | 3 | 3 | Undead | Medium | Libris Mortis |
| 27 | 6 | Myconid Circle Leader | 1 | 6 | Plant | Large | MM2 |
| 28 | 6 | Myconid Elder Worker | 5 | 2 | Plant | Medium | MM2 |
| 29 | 6 | Myconid Guard | 2 | 4 | Plant | Medium | MM2 |
| 30 | 6 | Necrophidius | 5 | 2 | Construct | Medium | Fiend Folio |
| 31 | 6 | Necroplasm | 3 | 3 | Undead | Medium | Ghostwalk |
| 32 | 6 | Nether Hound Ghast | 2 | 4 | Undead | Medium | Dragon #322 |
| 33 | 6 | Nifern | 5 | 2 | Animal | Medium | Serpent Kingdoms |
| 34 | 6 | Night Hunter | 11 | 1 | Magical Beast | Medium | Monsters of Faerûn |
| 35 | 6 | Ogre Savage Vampire | 2 | 4 | Undead | Large | Dragon #348 |
| 36 | 6 | Ophidian | 5 | 2 | Humanoid | Medium | Fiend Folio |
| 37 | 6 | Otyugh | 2 | 4 | Aberration | Large | MM1 |
| 38 | 6 | Painspeaker | 2 | 4 | Undead | Medium | Tome of Magic |
| 39 | 6 | Phaerlock | 4 | 2 | Humanoid | Medium | Underdark |
| 40 | 6 | Plague Blight | 1 | 6 | Undead | Medium | Libris Mortis |
| 41 | 6 | Pulverizer | 2 | 4 | Construct | Medium | MM2 |
| 42 | 6 | Quicksilver Lizard | 5 | 2 | Animal | Large | Drow of the Underdark |
| 43 | 6 | Rat Swarm | 4 | 2 | Animal | Tiny | MM1 |
| 44 | 6 | Ravenous Ghoulish 1st-level Halfling Warrior | 4 | 2 | Undead | Small | Dragon Compendium - Volume I |
| 45 | 6 | Ripper | 1 | 6 | Aberration | Medium | Cityscape |
| 46 | 6 | Rot Grub Swarm | 1 | 6 | Vermin | Diminutive | Dungeonscape |
| 47 | 6 | Rot Reaver | 1 | 6 | Aberration | Medium | MM3 |
| 48 | 6 | Rylkar Tormentor | 1 | 6 | Magical Beast | Medium | MM5 |
| 49 | 6 | Rylkspawn Swarm | 2 | 4 | Magical Beast | Tiny | MM5 |
| 50 | 6 | Saltor | 3 | 3 | Aberration | Small | Lords of Madness |
| 51 | 6 | Serpentir | 2 | 4 | Undead | Large | MM5 |
| 52 | 6 | Shadow | 3 | 3 | Undead | Medium | MM1 |
| 53 | 6 | Shadow Asp | 11 | 1 | Magical Beast | Tiny | Fiend Folio |
| 54 | 6 | Shyft | 11 | 1 | Outsider | Medium | Fiend Folio |
| 55 | 6 | Sinister | 3 | 3 | Magical Beast | Large | Monsters of Faerûn |
| 56 | 6 | Skulk | 5 | 2 | Humanoid | Medium | Fiend Folio |
| 57 | 6 | Skum | 5 | 2 | Aberration | Medium | MM1 |
| 58 | 6 | Skum Zombie | 11 | 1 | Undead | Medium | Libris Mortis |
| 59 | 6 | Small Ectoplasmic Vermin | 16 | 1/2 | Vermin | Small | Ghostwalk |
| 60 | 6 | Spectator Beholderkin | 1 | 6 | Aberration | Medium | Magic of Faerûn |
| 61 | 6 | Spectral Rider | 1 | 6 | Undead | Medium | MM5 |
| 62 | 6 | Spectral Steed | 3 | 3 | Undead | Large | Ghostwalk |
| 63 | 6 | Spitting Felldrake | 5 | 2 | Dragon | Medium | MM2 |
| 64 | 6 | Stinger | 2 | 4 | Humanoid | Large | Monsters of Faerûn |
| 65 | 6 | Stone Drake | 2 | 4 | Dragon | Medium | Races of Stone |
| 66 | 6 | Stone Half-Golem | 2 | 4 | Construct | Medium | MM2 |
| 67 | 6 | Summoning Ooze | 2 | 4 | Ooze | Medium | MM3 |
| 68 | 6 | Tanarukk | 5 | 2 | Outsider | Medium | Monsters of Faerûn |
| 69 | 6 | Thunder | 1 | 6 | Outsider | Medium | Dragon #317 |
| 70 | 6 | Tirbana Drowser | 4 | 2 | Magical Beast | Small | MM5 |
| 71 | 6 | Tirbana Slayer | 2 | 4 | Magical Beast | Medium | MM5 |
| 72 | 6 | Tomb Mote | 5 | 2 | Undead | Tiny | Libris Mortis |
| 73 | 6 | Tomb Spider | 1 | 6 | Magical Beast | Large | MM4 |
| 74 | 6 | Troglodyte | 11 | 1 | Humanoid | Medium | MM1 |
| 75 | 6 | Troglodyte Zombie | 11 | 1 | Undead | Medium | MM1 |
| 76 | 6 | Tyrantfog Zombie | 3 | 3 | Undead | Medium | Monsters of Faerûn |
| 77 | 6 | Uchuulon | 1 | 6 | Aberration | Large | Stormwrack |
| 78 | 6 | Umbral Displacer Beast | 1 | 6 | Undead | Large | Libris Mortis |
| 79 | 6 | Vampire Spawn | 2 | 4 | Undead | Medium | MM1 |
| 80 | 6 | Very young Brainstealer Dragon | 1 | 6 | Dragon | Large | Dragon #337 |
| 81 | 6 | Very young Deep Dragon | 1 | 6 | Dragon | Small | Monsters of Faerûn |
| 82 | 6 | Very young Hex Dragon | 2 | 4 | Dragon | Medium | Dragon #343 |
| 83 | 6 | Very young Mist Dragon | 2 | 4 | Dragon | Small | Dragons of Faerûn |
| 84 | 6 | Very young Shadow Dragon | 2 | 4 | Dragon | Small | Draconomicon |
| 85 | 6 | Violet Fungus | 3 | 3 | Plant | Medium | MM1 |
| 86 | 6 | Vivisector | 2 | 4 | Aberration | Medium | MM5 |
| 87 | 6 | Voidwraith | 1 | 6 | Undead | Medium | Libris Mortis |
| 88 | 6 | Wight | 3 | 3 | Undead | Medium | MM1 |
| 89 | 6 | Wyrmling Amethyst Dragon | 2 | 4 | Dragon | Small | MM2 |
| 90 | 6 | Wyrmling Brainstealer Dragon | 2 | 4 | Dragon | Medium | Dragon #337 |
| 91 | 6 | Wyrmling Chromium Dragon | 3 | 3 | Dragon | Small | Dragon #356 |
| 92 | 6 | Wyrmling Cobalt Dragon | 3 | 3 | Dragon | Tiny | Dragon #356 |
| 93 | 6 | Wyrmling Deep Dragon | 2 | 4 | Dragon | Tiny | Monsters of Faerûn |
| 94 | 6 | Wyrmling Emerald Dragon | 3 | 3 | Dragon | Small | MM2 |
| 95 | 6 | Wyrmling Hex Dragon | 3 | 3 | Dragon | Small | Dragon #343 |
| 96 | 6 | Wyrmling Mist Dragon | 3 | 3 | Dragon | Tiny | Dragons of Faerûn |
| 97 | 6 | Wyrmling Sapphire Dragon | 2 | 3 | Dragon | Tiny | MM2 |
| 98 | 6 | Wyrmling Shadow Dragon | 3 | 3 | Dragon | Tiny | Draconomicon |
| 99 | 6 | Young Hex Dragon | 1 | 6 | Dragon | Medium | Dragon #343 |
| 100 | 6 | Young Shadow Dragon | 1 | 6 | Dragon | Small | Draconomicon |
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