My Blueprint
Don

Easy way to layout your build

Flowing Concrete
DumbDave961

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

My Blocks
Don

Special Blocks

Prismatic Stone
doomburger

Adds decorative prismatic stone blocks, coral dyes, and six new crafting recipes.

Beds for Minetest Classic
MyNameIsKid

Beds for Minetest Classic by MyNameIsKid.

Mycorners
Don

Put decorative corners on blocks.

Map Cursor
Blocky Player

Adds blocks like arrows, pointers and signals. For mapmakers who need to point players somewhere.

Node roads
MatyasP

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

Plasterwork
Sokomine

Add colored plaster coats to nodes

More Curves
Just_Visiting

Adds 10 new curve shapes to game.

Stacked Bricks
1F616EMO

Bricks stacked on another type of bricks

Cube Nodes
Andrey01

Adds colorful blocks with various symbols as letters, digits, punctuation, emoji and special signs.

Falling Stairs
lazerbeak12345

Adds falling stairs and slabs for gravel, sand and others.

NodeCore Nature: Revised
Warr1024

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

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

DragonEggLock
mi.sh

You can lock a Dragon Egg so it doesnt teleport away

Rainbow Source
Shara

Adds coloured water.

My Parkour
Don

Nodes for making a parkour track

Tortou
LibraSubtilis

Turtle graphics, hyperloop travelingsystem and cubic mobs.

Obdy
Sires

Adds some pretty OP tools :)

Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

NodeCore Beacons
Warr1024

Long-distance navigation beacons for NodeCore

Poly Decor
mt-mods

My spin on decorative stuff.

Nodecore Stucco
Avicennia_g

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

New bricks
DimonPy

adds 119 new bricks and grinder

Roadway
X17

Adds simple roads in 4 sizes.

Mid Measure
ANAND

Quickly get the distance between two nodes and calculate their mid-point

Alien Tools
chaosomnium

Adds Alien Tool, Shield, biome, etc.

My Mulch
Don

Turns leaves and other items to mulch blocks

Better Fences (1F616EMO Redo)
1F616EMO

Allow fences to connect to all nodes

Plastic Box
Starbeamrainbowlabs

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

Quartz Glass for Stellua
vejou

Adds quartz-glass combinations for colored glass 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.

Quarry Link
gabriel1379

Enables use of Quarry Mechanics with the stone-like and resource-nodes of other mods.

Saphire
Ryft77

Adds saphire stuff

Nodecore Dye
Crystal Heart

Dyes & painting for Nodecore.

Colored Stone
Clyde

provides colored stones.

Hidestone
shaft

Adds a stone that can hide up to 100 blocks.