super blocks
Giga_M

Adds invisible and unbreakable blocks - not in inventory, use /giveme

Dialog Redo
1F616EMO

Flexable dialog API

Mycorners
Don

Put decorative corners on blocks.

Flowing Concrete
DumbDave961

Adds flowing concrete that hardens over time. Cheap alternative to lava cooling.

Nodecore Dye
Crystal Heart

Dyes & painting for Nodecore.

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

Aqua World
NovaX

Generate an underwater world with deep water, sand, and sandstone.

Register, Attach & Detach
mzel1982

Register glowing 3D items and custom display nodes that you can easily attach to players, place on walls, or showcase on pedestals.

Obdy
Sires

Adds some pretty OP tools :)

Star
Wiz

A* Pathfinding algorithm implementation

Simple notification wrapper
KirowL

This project offers a Notification System API to display temporary messages on the player's screen, allowing seamless integration of notifications into gameplay.

Recover from irrecoverable lag
1F616EMO

Restart the server when it lags too much

Coins
Clyde

Adds 3 kind of Coins to your game

Minetest Systemd (API)
Piezo_

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

Admin mailing list and report
1F616EMO

Add mailing list for admins and moderators, and a report function

Node roads
MatyasP

Add much of one-node roads and crossroads, road bridges and slopes

Equipment Wear
AntumDeluge

Allows tool & equipment wear to be disabled.

epic entrance
Giga_M

adds an epic entry upon joining server for those with the privilege

NodeCore ZipRunes
Warr1024

Gameplay-integrated fast-travel system for NodeCore.

Sling
tacotexmex

Sling enables item stack and single item throwing of any item.

WiTT
MightyAlex200

Small indicator to show what the player is looking at.

Roadmarks
LukeOfficial

Adds road marks.

Archipelago for Citadel
Warr1024

Connect Citadel to Archipelago Multi-world Randomizer

Beamer
Clyde

Beam items or nodes from your inventory to the inventory of your friend.

Guider
1F616EMO

HUD markers for navigation

PerfHUD
Juri

Adds an HUD which shows some performance stats.

Guilds
RisingLeaf

Adds a very basic guild system.

Quartz Glass for Stellua
vejou

Adds quartz-glass combinations for colored glass blocks

Red Pockets
1F616EMO

Happy Chinese New Year! Give artificial red pockets to kids!

Easter Eggs / Ostereier
Ineva

Adds various coloured eggs for Easter!

Modding Commands
DragonWrangler

Adds Hopefully helpful commands for modding

What are those!?
tacotexmex

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

Natural Entities
LuantistDork

A lightweight API for spawning random entities

Item Holders
Jose_ManuelS18

Adds 'Item Holders', blocks that hold your items in display, also provides a API.

Fragments
Amaz

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

NodeCore Nature: Revised
Warr1024

Updated, fixed, enhanced edition of Winter94's NodeCore Nature

Weedstone Random Mod Thing
chaosomnium

Originally meant to be a simple electronics type mod inspired by redstones, I messed around with the code after getting bored and got this weird mod, and now it's this thing. Enjoy I guess?

Unknown Object
1F616EMO

Bring spawnable unknown object to the game

Fly-B-Gone!
Hugues Ross

Hides butterflies/fireflies

Multiblock Lib
Mindcool25

Multiblock structure handler