Bukkit

The multiworld plugin made by ferrybig

A Skyblock Plugin

Provides automated plots with protection (MultiWorld support)

Exotic Garden

Creates cleanroom-style flat world generator with fully customizable layers. It can also be used to create empty space maps!

PlotSquared

A simple void world generator.

uSkyBlock

Teleporting Made Easy

MagicLoot

IslandWorld - Survive on small isle

Nothing but void!

This is a basic world generator that creates empty worlds. It's lightweight, easy to use, and very basic.

Lucky Blocks (Slimefun Edition)

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

An Automated Hunger Games plugin!

Survival in a sea of acid - like skyblock but with boats!

This plugin allow full control of normal world generator

IslandCraft modifies the terrain generation to create an ocean with many islands; each island is a single biome.

CityWorld