The Lower Road
Deadlock

Adds a long road from -Z to +Z to the world, during world-generation.

Mineclone Bubble Columns
j45

Adds whirlpools and upwards bubble columns to Mineclone2/5

Draconis
ElCeejo

Adds terrifying Dragons and powerful equipment.

SzUtilPack
Warr1024

A collection of misc dependency-free utilities primarily for server hosts.