Stardust
alerikaisattera

A mineral found at high altitude and items made with it

BitChange
Krock

Money items for your world. You can mine bitcoins. Sort of.

Guilds
RisingLeaf

Adds a very basic guild system.

Horsetail++
TX_Miner

Lets you eat Horsetails from Paleotest. Very helpful in caves!!!

NodeCore Pottery
Winter94

Adds clay and ceramic items and nodes to NodeCore

Hardcorebrix
drkwv

Adds durable building materials that won't break on a first dig.

Inventory Manager
Flay Krunegan

Allows you to view and edit the inventory of the players

Minetest Email
MrFreeman

Adds email style inboxes

Useful Contraptions
theFox

Some useful contraptions / machines.

bucket (redo)
fluxionary

a bucket which functions like a normal tool.

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

OTP
mt-mods

(T)OTP Verification for player accounts

NodeCore Fossil
Winter94

Discover fossils, oil, natural gas, amber, and more!

Pattern Blocks/festive Blocks
Eternal_plasma

Adds New Bright Blocks

TPH's Doors API Redo
TPH

(INTENDED FOR DEVELOPERS) Attempts to ease and better simplify door mechanics + registration

Valentine's day
Luke

Adds valentine cards

Boulders
Neuromancer

Adds pushable boulders which spawn in dirt & stone. They tumble when they wind up on top of each other and cause damage when they fall on you.

Playerfactions Ext
IRI

extension of Playerfactions which adds sub-commands that allow you to teleport, give/withdraw privs and/or items to all members of a faction at the same time or for one player in a faction.

Fragments
Amaz

A mapgen with a goal, with things needed to advance to the next level.

flux's worldedit maze generator
fluxionary

a command to create 2d mazes using worldedit.

Simple Playerlist
Fruitsnack

Mod that adds a menu to see all connected players

Nixie Tubes
mt-mods

Provides a set of classic numeric Nixie tubes, alphanumeric tubes similar to Burroughs B-7971, and Dekatron tubes, all controlled by Digilines.

Function Delayer
Hybrid Dog

Allows executing functions after a delay to reduce possible lag (EDD scheduler?)

bridgemaker
mike.monkeybiter

A refillable machine to easily create simple block bridges across caverns and valleys.

Placeholder
BuckarooBanzai

placeholder node / a better unknown node

Beautiful Boulders
regulus

Procedurally Generated Rocks with (pretty) Accurate Collision Boxes

Free Stuff Generator
AiTechEye

junk has never been so coveted!

What are those!?
tacotexmex

See what those nodes are called by simply looking at them (or by punching them)

Scripted World Editor
Neuromancer

API that allows you pass in scripting tables to fill a series of shapes of different sizes with different nodes

Decraft
iarbat

De-craft items with the decrafting workbench.

NodeCore SeaLife
Winter94

Adds Biodiversity to NodeCore Seas & Rivers

Bouncy Leaves
1F616EMO

Adds bouncy and fall damage reduce effect to leaves

Pineapple
Neuromancer

Pineapple crop for tropical biomes

More Triggers
SkyBuilder1717

Adds more triggers for Awards

Unstable Caves
M BLOC

Some stones may cave in if punched, making underground expeditions more risky.

WiTT
MightyAlex200

Small indicator to show what the player is looking at.

Face Objects
1F616EMO

Calculate the facing of objects

Nebula Combat
JoinNebula

A combat customizer for competitive servers: customize knockback, attack interval, attack distance, damage multiplier, etc.

VPS Blocker
Lejo

Block players using vpns, proxys or other hosting services

Hidestone
shaft

Adds a stone that can hide up to 100 blocks.