A haunted tower is a structure that spawns in Birch Forest, Forest, Roofed Forest, and Swampland biomes. It contains several Pixelmon spawners that spawn aggressive Ghost-type Pokémon, with higher floors spawning stronger Pokémon. The roof of the tower contains a hidden Master chest and a Pixelmon spawner that only spawns boss Pokémon. However, this particular spawner activates relatively infrequently.
The command "/struc hauntedtower" can spawn a haunted tower if the terrain allows for one.
All haunted towers contain the same Pixelmon spawners.