Better Biomes by Atlante
Neuromancer

This mod adds some of the subtle understated beauty of nature to your biomes to make the world look more natural. It was created by Atlante.

Caverealms
HeroOfTheWinds

A mod for Minetest to add underground realms.

Natural slopes library
karamel

Library to simply add slopes to regular nodes and include them on map generation and when changing the landscape.

Deepslate
Silver Sandstone

Adds deepslate and related building materials.

Nssb
TenPlus1

BIOME integration for nssm, the not so simple buildings.

Fireflies
Shara

Adds fireflies which can be caught in a net and placed in bottles for lighting.

Geodes
AwesomeDragon97

Adds amethyst geodes and an API for making custom geodes.

block physics
GigaByte

Add pieces of broken blocks when breaking them.

Luamap
MisterE

An easy-to-use api for lua mapgens that takes the pain out of mapgen coding. Focus on mapgen logic, not on voxelmanipulation.

Easy ores
X-DE

Minetest ores now generate higher up

Rubber Addon for MineClone
Biochemist

Adds rubber and related Items to MineClone.

3d ores!
Soundwavez

a slick new take on the default ores!

Biospheres
Feufochmar

A map generator generating single-biome islands inside glass spheres.

Zero-Effort Custom Minerals
Piezo_

A tool for registering entire materials, complete with ore generation, tool-sets and automatically generated sprites with almost no effort required

NextGen Bedrock
StarNinjas

Adds an indestructible bedrock layer at the bottom of the world.

Alien Material
debiankaios

Adds new blocks, items, and tools from aliens. A new time begins.

Just a Mountain
Deadlock

Adds a Mountain (4000x2000 blocks large, 1000 blocks tall)during worldgen around a configurable position

Swamplified
Neuromancer

This mod adds a few more nice touches to Atlante's Swamp biome mod

Ancient Fertilizer
Daniel

Adds ancient fertilizer, sourced from ancient stone in the underground, useful for farming flowers if you need dye for colored nodes, complements bonemeal.

Large Slugs
jwmhjwmh

Adds node-based slug mobs to your world

pilzmod
Phii

a spreading mushroom biome which you can spawn into the world, with its own monsters and a boss you need to slay to stop the biome's growth. Best played with bow & armor mod and after reading manual.

Swamps
Hybrid Dog

Adds swamps

In the Fog
Jo5629_

Herobrine has entered your world.

Coconut Trees
AwesomeDragon97

Adds coconut trees that appear on beaches

Loose Rocks
eduardomezencio

Adds loose rocks which generate randomly on the surface.

Sedimentology
sofar

A mod that adds realistic erosion and degradation of rocks.

Lua2Mts
Neuromancer

Allows converting .lua schematics files to .mts files.

The Road (NC)
Winter94

This is a port of thelowerroad for NodeCore that adds a long road from -Z to +Z to the world, during world-generation.

WC Strata
Winter94

Exploring the NodeCore underground has never been more colorful.

Kitty/Kitto Ores
nemokitty9

Nemokitty9's own ore pack. Includes Tools!

UFO wreck
Irremann

UFO wreck

Zinc
alerikaisattera

Zinc metal, used for making brass

Pedology
Wuzzy

Adds some different ground blocks in several wetness levels; the wetness slowly flows downward.

Nodecore Rabbits
LandarVargan

Adds rabbit holes, rabbits, and traps to the Nodecore game

Sailing
cakenggt

Live in a tropical paradise where you can sail, mine coconuts, etc.

Far Glitch Land
srifqi

Add glitchy-looking lands at the edge of the world

Meze
Calinou

A special ore that kills you when mined.

Nodeternal Darkness
Kimapr

make nodecore very dark

Boring RPG
Lebedev

New items blocks and other pieces are waiting for you here

Grave
ElCeejo

Adds an eerie biome with multiple mobs.