X Clay
SaKeL

Adds hardened clay.

Plastic Box
Starbeamrainbowlabs

Adds a recolourable plastic box. Fork of @cheapie's version with improvements.

Steel
mt-mods

Adds a range of steel materials that are recyclable.

Node roads
MatyasP

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

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

Colorable banisters
MatyasP

add support for colorable banisters and banisters with repeating nodebox

Ehlphabet
1F616EMO

Letter blocks

My Mesh Nodes
Don

A machine that makes different shape node

My Blueprint
Don

Easy way to layout your build

awuuwa's Building Blocks
awuuwa

various building blocks

Japanese Signs
saradaabura

This will add signs that support Japanese to the game (Mineclonia).

NodeCore Beacons
Warr1024

Long-distance navigation beacons for NodeCore

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Minetest Emotions
ResendeTech

Adds new feelings in the form of blocks

Beds for Minetest Classic
MyNameIsKid

Beds for Minetest Classic by MyNameIsKid.

nodeu
ulla

metal blocks stair railing coloured

8Segmentdisplayblocks
unacceptium_core

8 segment digital display as blocks

Mycorners
Don

Put decorative corners on blocks.

Gizmo's Of Carbon Machinations
ThatGhzGamer

Adds various charcoal related items such as a Marvelous Hammer to Compress things, New Gear, New Diamonds, Charcoal and Willow Charcoal.

Quartz Glass for Stellua
vejou

Adds quartz-glass combinations for colored glass blocks

Fire Braziers
Excalibur Zero

Fire braziers that cause flames to erupt one node above them that don't fade right away when are near flames or are punched.

My Parkour
Don

Nodes for making a parkour track

Tinted Glass
1F616EMO

Colored glass

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

Nodecore Dye
Crystal Heart

Dyes & painting for Nodecore.

My Slopes
Don

MySlopes

digicolor
fluxionary

node whose color can be set via digilines

My Siding
Don

Adds lines on one side of block to make it look like siding

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?

My Paint Extras
Don

Allows you to paint dirt, gravel, wood, trees and more.

New bricks
DimonPy

adds 119 new bricks and grinder

Nameznik
MatyasP

Námezník / Fouling point marker, place where ends wide between tracks enough. For first, czech design.

Nodecore Stucco
Avicennia_g

Adds a few decorative building nodes to Nodecore through simple and crude masonry.

Barrier
erov

Barriers with optional placement restrictions.

Color Blocks
mt-mods

Contains colored building blocks.

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

Stoneworks
TumeniNodes

Stoneworks simply adds some fun, and cool building options.

Steel bar blocks
atum785

adds blocks made of steel bars (xpanes)