Mycorners
Don

Put decorative corners on blocks.

Automatic Cave Lighting
Hybrid Dog

Add two chatcommands to automatically light up dark places (e.g. caves) with lighting nodes such as torches.

MT Block and Asset Pack
ClassicAdam

Variety of blocks and other mesh nodes.

Under Sky
Shara

Skybox switch for really dark caves

NodeCore Pottery
Winter94

Adds clay and ceramic items and nodes to NodeCore

Warp Potions
Shara

Cost per use potions teleport system designed for survival servers.

Mine
SkyBuilder1717

Adds many types of mines

Chest2
ApolloX

The Advanced Chest

Simple Models
AntumDeluge

Very simple models.

Top players
GigaByte

Adds a kill, deaths, and kd counter to players.

flux's worldedit maze generator
fluxionary

a command to create 2d mazes using worldedit.

3D Spikes
BryanGruik15

Adds spikes to the game.

Symmetric Crafts
louisroyer

Add vertical symmetry in crafts.

Atium
GenesisMT

A strange a ore with tools.

computer
GigaByte

Add a computer with basic functions.

Throw Bricks to Glass
Ludus

Throw a brick... what did you expect?

Object UUIDs
Silver Sandstone

Assigns a persistent UUID to every object.

Discrete Player API
Hypernoot

A library for games which attaches players to node grid

Nextgen Compass
StarNinjas

A compass item which points towards the world origin.

obsidian
GigaByte

more uses for obsidian

Time Stone
j45

This mod adds 2 single use stones, a day stone and a night stone, the day stone turns time to sunrise and the night stone turns time to sunset.

Aliases
Flay Krunegan

Change playername in the server.

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

Snow Cones
GreenXenith

Some simple flavored snow cones.

More Coral
Nathan.S

Adds coral in more colors.

Place Rotated
12Me21

Better slab/log placement

Death Position
DiamondPlane

Adds a command to return back to position where you died

Advanced Rangefinder
sorcerykid

Extends the API with search capabilities for entities

doorbell
Miniontoby

A doorbell mod with sound

Raining Items
NO11

It’s raining random items!

Spawn Fixer
random_person_person

Fixes spawning inside a hill

Minetest Systemd (API)
Piezo_

Debugging utility and compatibility tools for server owners and/or modpack creators

Gear Up
Random Wizard

A mod that adds wearable gear and allows re-color of items.

Technic Diamonds
mt-mods

Use technic to grind and compress diamonds.

Speedrun Tools
SuperStarSonic

Speedrunning tools for Luanti

NodeCore Quicksilver
Winter94

Experiment with quicksilver to discover it's various properties!

Compression Lib
The4spaceconstants

A library that provides functions to procedurally register compressed versions of nodes.

Fire extinguisher
SkyBuilder1717

Adds fire extinguisher, which can extinguish some fire

My Eyes
Don

Tells you what you are looking at

Sugar
X17

Adds eatable sugar made of papyrus and a sugar block