This plugin not only provides better terrain generators for Nukkit, you can also customize your world by modifying the configuration.

A Mod for Minecraft Nether SkyBlock

Manage the Nether Ceiling on Minecraft servers

Vertical End portals and lateral (horizontal) Nether portals with a focus on configurability.

Minecraft Mod - Nether Core

Simple Spigot plugin that allows players to use water in nether worlds. They can use buckets, ice blocks and dispensers for spawning water.

An open source Minecraft plugin that allows operators to control who has access to the nether.

A Minecraft mod that further develops the Nether.

Keeps your inventory after death in the Nether or The End dimension

BentoBox addon that turns the trees that grow in the Nether or in the End into specific materials

Janoeo Foundation - A foundation for any mod!

A minecraft forge mod to add content to the nether.

spigot plugin to improve pvp combat especially at the nether hub

A mod that adds a new gamemode; Hardcore, but you spawn in the nether!

OverworldNetherMobs is a Minecraft mod that brings Nether mobs to the Overworld. This mod allows Nether mobs to spawn in the Overworld, creating a more challenging and exciting gameplay experience. Perfect for players seeking extra difficulty and adventure in Minecraft.

Nether variants for Vanilla and Thermal Foundation ores! Spiritual successor to NetherOres by PowerCrystals.

Randomizes Nether portal destination, such that every 256*256 quadrant is linked to another unique random quadrant. This PRNG is reversible, so players can return by going through the same portal.