Color Blocks
mt-mods

Contains colored building blocks.

super blocks
GigaByte

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

Surprise Blocks
Wuzzy

Randomly spawns surprise blocks closely about ground level.

Placeholder
BuckarooBanzai

placeholder node / a better unknown node

Mocap
mrGoodWolf

Let's players record themselves and playback the recording (NOT VIDEO RECORDING)

Nyancat's heaven (reworked)
Hybrid Dog

Adds a nyanland in the sky

Metatool
SX

Provides API to register node metadata tools along with few useful tools

My Cobble
Don

This is a simple mod that lets you turn cobble into gravel and gravel into sand

Sun Flowers
Hybrid Dog

This mod generates flowers which close their heads at night.

Virt
frogTheSecond

A library for (qemu) virtual machines

Display
SkyBuilder1717

Adds command to display URL images.

Wrench - node rotation tool
Argos

A better screwdriver.

Shadow Realm
archfan7411

The realm of shadows contains many hidden horrors.

Go
LMD

A game of Go

Stack Slabs
TumeniNodes

stackable slabs for Minetest

superspeed
GigaByte

change the player's speed x10

Minercantile
Mathias

Economy featuring a primitive supply and demand system for exchanging goods.

Aliases
Flay Krunegan

Change playername in the server.

Flowing Concrete
DumbDave961

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

Petroglyph Maker
Neuromancer

Create your own petroglyphs on Desert Stone

titou random teleport
titou4

this mod serves to be teleported to a random location.

Pick And Place
BuckarooBanzai

Pick and place utility

Batmod
Don

Fun mod that is about bats

Ocular Networks
mt-mods

Draw power from the world, and use it to power machines and tools.

Chest2
ApolloX

The Advanced Chest

Hidestone
shaft

Adds a stone that can hide up to 100 blocks.

Voxelizer
LMD

Turns 3D models into astonishing voxel builds.

NodeCore Additional Content
Winter94

Ask and Ye Shall Recieve (Multiple Small Additions Requested in NC Documentation )

Plastic Box
Starbeamrainbowlabs

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

aw_edificiosdecuba_habana
JALdMIC

It has some buildings based on those in Havana

Subterrane
FaceDeer

A mod that creates vast underground caverns and allows biomes to be defined for them

Touch
Skamiz Kazzarch

Orient yourself in the darkness by touch.

Nodecore Fairy Chimneys
Winter94

Adds geological formations called 'hoodoos' or 'fairy chimneys' to your worlds.

Oddly Sized Checkerboard Testnodes 2
erle

Adds oddly sized checkerboard test nodes.

Trading
ROllerozxa

Trade items with other players.

Mese Stuff for Minetest Classic
Ludus

Don’t Mese around with ordinary materials!

Thermometer
csirolli

A thermometer to check the temperature

Think Block
Thebinoman

This block can think random thoughts.

NodeCore Lignite
Winter94

Adds Lignite, an ore of coal. Now outdated, please use NodeCore Coal instead. See Below.

Sundial
The4spaceconstants

Mostly game-independent sundial