Every creature, including every player character, has a tag in the rules that identifies the type of creature it is. Most player characters are of the Humanoid type. These are the game's creature types:
| Aberration | Elemental | Monstrosity |
| Beast | Fey | Ooze |
| Celestial | Fiend | Plant |
| Construct | Giant | Undead |
| Dragon | Humanoid |
The types don't have rules themselves, but some rules in the game affect creatures of certain types in different ways.