Chains
X17

Adds chains to climb or decorate

Timber Frame
jbb

This mod adds timber-framed clay, bricks, cobble, stone and stone bricks to the game.

Charcoal
X17

Make charcoal from trees and use this as fuel

Invisible Wall
X17

Adds a simple invisible block

Roadway
X17

Adds simple roads in 4 sizes.

Ocean
StarNinjas

Adds coral reefs, fish, decorative ocean blocks and much more!

Placeable Buckets for Catching Rainwater
Noodlemire

Allows empty buckets to be placed as nodes in order to collect rainwater.

Ropes
FaceDeer

Adds rope boxes of various lengths and also rope ladders.

Loria (alpha)
siegment

Survival in hardcore acid-alien sci-fi themed world

Poly Decor
PolySaken

My spin on decorative stuff.

Xblox
StarNinjas

New blocks!

You Can't Touch It Either
Avicennia_g

Simple mod adding lockable storage shelves to Nodecore.

Plastic Box
Starbeamrainbowlabs

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

Castle Gates
FaceDeer

This is a mod all about creating castle gates and dungeons

Hopper
FaceDeer

Adds hoppers to transport items between chests/furnace etc.

Template to Easily Make Fancy Voxelized Models
Noodlemire

Provides voxelmodel.obj, a model designed to be shaped by changing its texture, in order to easily create fancy voxelized models.