Realms of Darkness/Enemies

The same sprites are used for different enemies.

Enemy adventurers
The Roman numbers after the "class" line represent the earliest scenario where the specific enemy is encountered.
 * Not magic-users

Since ../Scenario I/

 *  Humanoid enemies:

Since ../Scenario II/

 *  Humanoid enemies

Since ../Scenario III/

 *  Invincible enemy:

Since ../Scenario IV/

 *  Undead enemies:

Since ../Scenario V, part 1/

 *  Humanoid enemies

Since ../Scenario V, part 2/

 *  Monster enemies

Will-o-wisps are immune to "dispel undead", therefore it would be misleading to include them in the "undead" category.