Unused NPCs

Within Terraria's code are several NPCs that went unused. These NPCS do not spawn naturally

Unspawnable NPCs
These NPCs are functional, but do not appear at any time during regular gameplay. They can only only be spawned in by use of a mod or with third-party server commands.

Trivia:


 * The Jungle Mimic used to be unspawnable but as of 1.4.2.3 it spawns naturally in the Hardmode Underground Jungle on the Celebrationmk10 seed.

Unused NPCs
These NPCs are in the game but are not implemented, they do not function. The enemies below cannot be spawned, even with mods.. Various files or ID names may be present in the code.

Unused Mud projectile
This projectile exists in Terraria&#39;s files, it can only be spawned in by using mods or with third-party server commands. Various files or ID names may be present in code.

It is a leftover asset from version 1.0.5, when Mud Blocks had a chance to fall, similarly to Sand Blocks and Silt Blocks.