Karst Caverns
MisterE

A cavern generator that creates complex karst cavern systems, with rooms interconnected by multilevel tunnels. Experience the joy of caving.

Jetpack (sum)
Sumianvoice

Adds a jetpack and fuel.

Hardcore Farming
Neuromancer

Makes farming a hardcore challenge by adding very hungry pests. Can you overcome them or will they defeat you?

Axis Tools
mt-mods

All the functionality of tinkers construct, but all in your inventory.

Advanced Biome Decoration API
EmptyStar

An API for creating advanced, complex biome decorations

Ranged Weapon Framework (rawf)
LandarVargan

A ranged weapon framework for Minetest

Mystical Tools
liteninglazer

tool progression past diamonds and adds mystical staffs and wands

Frame
sofar

A stylish item and node frame that causes no lag/server load.

Pigiron
TenPlus1

Adds pig iron ingots which need to be crafted to make steel, also blocks and stairs.

Rubber Addon for MineClone
Biochemist

Adds rubber and related Items to MineClone.

Minetest Uni Library
fatalerror420

Adds b3d reading (and interpretation), binary reading, media filepath location, an extensive Love2d math library, and more.

Placeable Buckets for Catching Rainwater
Noodlemire

Allows empty buckets to be placed as nodes in order to collect rainwater.

Emoji
bosapara

"Emoji" show emoji icon above player with command "/e" or with text smiles in chat like 'o_O'

Hedges
Shara

Adds connected hedges that that can be crafted from leaves.

Mob Crab (Beta)
Can202

Adds Crabs.

Dashing
LMD

Quick energy burst alternative to sprinting

Oxidizing Copper
StarNinjas

This mod aims to make copper/bronze more realistic by making them slowly oxidize into a bluish/green block when exposed to water.

NodeCore Heaters
nneett

Just a little mod I wrote to add a flameless heater.

Calendar
Wuzzy

A simple calender system to track the passage of days

Clay Bricks
AwesomeDragon97

Adds colorful clay bricks.

NodeCore Snakes
Kimapr

Sneaky snakes in NodeCore!

Block Exchange
BuckarooBanzai

Cloud worldedit schema exchanger

Balloon Blocks
TBSHEB

Adds balloon blocks that can be placed on air.

Hook (survival tools)
AiTechEye

Survive & climbing tools

Moonflowers
karlexceed

Adds a rare pale blue flower that glows faintly in the darkness.

Pedology
Wuzzy

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

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.

Digicontrol
OgelGames

Adds nodes to control the flow of digiline messages

Large Slugs
jwmhjwmh

Adds node-based slug mobs to your world

Mineclone2 Underwater Challenge
NO11

A survival challenge for Mineclone2. Try to survive in a flooded world.

Swamplified
Neuromancer

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

Craft Lookup
ForbiddenJ

Provides you with a way to lookup recipes to make items.

Researcher
EmptyStar

Research items to unlock duplication

Chocolatestuff
lazerbeak12345

Adds edible chocolate tools and armor to Minetest.

Smoke Signals
Just_Visiting

Signal your friends, or warn your enemies!

Infinite Chest
Dragonop

Adds a configurable chest that gives an infinite amount of something.

Lookup Tool
Wuzzy

Adds a tool which shows help entries about almost anything which it punches.

Flamethrower
Jeija

Adds a flamethrower using particles. It makes things burn and scorches grass; does not cause damage to any object.

Lava Ore Gen
Coder12

Makes the lava turn stone into ore over time.

De Nenio
Jolesh

Adds possibilities to get items normally unobtainable in skyblock through new mechanics and objects