 | Adult Red Dragon | Dragon | Huge | Chaotic evil | Mountains, Dungeon, Desert |
 | Air Elemental | Elemental | Large | Neutral | Mountains, Plains, Desert |
 | Animated Armor | Construct | Medium | Unaligned | Dungeon |
 | Ankylosaurus | Beast | Huge | Unaligned | Forest, Mountains |
 | Axe Beak | Beast | Large | Unaligned | Forest, Plains |
 | Banshee | Undead | Medium | Chaotic evil | Dungeon |
 | Basilisk | Monstrosity | Medium | Unaligned | Forest, Mountains |
 | Beholder | Aberration | Large | Lawful evil | Dungeon |
 | Blink Dog | Fey | Medium | Lawful good | Plains, Dungeon |
 | Bugbear | Humanoid | Medium | Chaotic evil | Plains, Dungeon, Mountains |
 | Bulette | Monstrosity | Large | Unaligned | Cave, Mountains |
 | Centaur | Monstrosity | Large | Neutral good | Plains, Mountains, Forest |
 | Chimera | Monstrosity | Large | Chaotic evil | Dungeon, Forest |
 | Cloud Giant | Giant | Huge | Neutral | Plains, Mountains, Forest, Desert |
 | Cockatrice | Monstrosity | Small | Unaligned | Mountains, Desert, Dungeon |
 | Cyclops | Giant | Huge | Chaotic neutral | Mountains, Dungeon, Plains, Forest, Desert |
 | Death Dog | Monstrosity | Medium | Neutral evil | Plains, Desert, Dungeon |
 | Displacer Beast | Monstrosity | Large | Lawful evil | Plains, Forest, Dungeon |
 | Doppelganger | Monstrosity | Medium | Neutral | Mountains, Dungeon, Plains, Forest, Desert, Cave, Beach |
 | Duergar | Humanoid | Medium | Lawful evil | Mountains, Dungeon |
 | Earth Elemental | Elemental | Large | Neutral | Mountains, Cave, Desert |
 | Fire Elemental | Elemental | Large | Neutral | Mountains, Cave, Desert |
 | Fire Giant | Giant | Huge | Lawful evil | Dungeon, Mountains, Desert |
 | Flameskull | Undead | Tiny | Neutral evil | Dungeon, Mountains, Desert |
 | Flesh Golem | Construct | Medium | Neutral | Dungeon, Mountains, Desert |
 | Flying Snake | Beast | Tiny | Unaligned | Forest |
 | Flying Sword | Construct | Small | Unaligned | Dungeon |
 | Frost Giant | Giant | Huge | Neutral evil | Mountains, Cave, Plains |
 | Gargoyle | Elemental | Medium | Chaotic evil | Dungeon, Mountains |
 | Gelatinous Cube | Ooze | Large | Unaligned | Dungeon, Mountains, Cave |
 | Ghost | Undead | Medium | Any alignment | Mountains, Dungeon, Plains, Forest, Desert, Cave, Beach, Ocean |
 | Ghoul | Undead | Medium | Chaotic evil | Mountains, Dungeon, Plains, Forest, Desert, Cave, Beach, Ocean |
 | Giant Fire Beetle | Beast | Small | Unaligned | Mountains, Cave, Desert |
 | Giant Spider | Beast | Large | Unaligned | Forest, Cave, Mountains, Dungeon |
 | Gnoll | Humanoid | Medium | Chaotic evil | Dungeon, Cave, Mountains, Plains, Forest |
 | Goblin | Humanoid | Small | Neutral evil | Dungeon, Cave, Mountains, Plains, Forest |
 | Grick | Monstrosity | Medium | Neutral | Cave, Mountains |
 | Griffon | Monstrosity | Large | Unaligned | Mountains, Plains |
 | Harpy | Monstrosity | Medium | Chaotic evil | Mountains, Plains, Forest |
 | Hill Giant | Giant | Huge | Chaotic evil | Mountains, Plains, Forest |
 | Hippogriff | Monstrosity | Large | Unaligned | Mountains, Plains |
 | Hobgoblin | Humanoid | Medium | Lawful evil | Dungeon, Cave, Mountains, Plains, Forest |
 | Hydra | Monstrosity | Huge | Unaligned | Dungeon, Cave, Mountains, Ocean |
 | Kobold | Humanoid | Small | Lawful evil | Dungeon, Cave, Mountains, Plains, Forest |
 | Kuo-toa | Humanoid | Medium | Neutral evil | Beach, Ocean |
 | Lich | Undead | Medium | Any evil alignment | Dungeon |
 | Lizardfolk | Humanoid | Medium | Neutral | Forest |
 | Manticore | Monstrosity | Large | Lawful evil | Dungeon |
 | Medusa | Monstrosity | Medium | Lawful evil | Dungeon |
 | Merfolk | Humanoid | Medium | Neutral | Beach, Ocean |
 | Mind Flayer | Aberration | Medium | Lawful evil | Dungeon |
 | Minotaur | Monstrosity | Large | Chaotic evil | Dungeon |
 | Mummy | Undead | Medium | Lawful evil | Dungeon |
 | Nothic | Aberration | Medium | Neutral evil | Dungeon |
 | Ochre Jelly | Ooze | Large | Unaligned | Dungeon, Cave, Plains, Forest |
 | Ogre | Giant | Large | Chaotic evil | Plains, Forest, Mountains |
 | Orc | Humanoid | Medium | Chaotic evil | Plains, Forest, Mountains, Desert |
 | Owlbear | Monstrosity | Large | Unaligned | Plains, Forest, Mountains |
 | Pegasus | Celestial | Large | Chaotic good | Plains, Forest, Mountains |
 | Phase Spider | Monstrosity | Large | Unaligned | Cave, Dungeon |
 | Plesiosaurus | Beast | Large | Unaligned | Ocean |
 | Quipper | Beast | Tiny | Unaligned | Ocean |
 | Rust Monster | Monstrosity | Medium | Unaligned | Cave, Mountains, Desert |
 | Satyr | Fey | Medium | Chaotic neutral | Forest |
 | Spectator | Aberration | Medium | Lawful neutral | Dungeon |
 | Stirge | Beast | Tiny | Unaligned | Dungeon, Cave, Mountains, Desert |
 | Stone Giant | Giant | Huge | Neutral | Mountains, Cave |
 | Stone Golem | Construct | Large | Unaligned | Mountains, Cave, Desert |
 | Storm Giant | Giant | Huge | Chaotic good | Mountains, Desert |
 | Tarrasque | Monstrosity | Gargantuan | Unaligned | Mountains, Dungeon, Plains, Forest, Desert, Cave |
 | Troll | Giant | Large | Chaotic evil | Mountains, Plains, Forest, Cave |
 | Twig Blight | Plant | Small | Neutral evil | Forest |
 | Umber Hulk | Monstrosity | Large | Chaotic evil | Dungeon, Cave |
 | Water Elemental | Elemental | Large | Neutral | Beach, Ocean |
 | Werebear | Humanoid | Medium | Neutral good | Mountains, Plains, Forest, Cave |
 | Wereboar | Humanoid | Medium | Neutral evil | Plains, Forest, Cave |
 | Wererat | Humanoid | Medium | Lawful evil | Plains, Forest, Cave |
 | Weretiger | Humanoid | Medium | Neutral | Plains, Forest, Cave |
 | Werewolf | Humanoid | Medium | Chaotic evil | Mountains, Plains, Forest, Cave, Dungeon |
 | Wight | Undead | Medium | Neutral evil | Dungeon |
 | Winter Wolf | Monstrosity | Large | Neutral evil | Mountains, Cave, Forest |
 | Worg | Monstrosity | Large | Neutral evil | Mountains, Cave, Forest |
 | Wyvern | Dragon | Large | Unaligned | Mountains, Cave, Plains |
 | Yeti | Monstrosity | Large | Chaotic evil | Mountains, Cave |
 | Young Green Dragon | Dragon | Large | Lawful evil | Mountains, Cave, Forest, Plains |
 | Yuan-ti Abomination | Monstrosity | Large | Neutral evil | Forest, Plains |
 | Yuan-ti Malison | Monstrosity | Medium | Neutral evil | Forest, Plains |
 | Yuan-ti Pureblood | Humanoid | Medium | Neutral evil | Forest, Plains |
 | Zombie | Undead | Medium | Neutral evil | Mountains, Dungeon, Plains, Forest, Desert, Cave, Beach, Ocean |