Bukkit

Interact with the Bukkit server console using SSH

Giant Caves is a bukkit mod that creates giant underground caves in the world.

Create massive trees in Minecraft! Choose your own sizes and block types!

Double the depth of your world

Darkens the skies and makes the air a toxic fume.

Inception is a plugin to allow world overlapping

Survey Tools gives you distance measurements between two points using Redstone Torches.

Randomly generates Silverfish colonies in the world

Simulates a zombie apocalypse.

ExtraGenerators provides additional populators and generators to liven up your worlds.