Mineclone Build Spawner
Thunder1035

Gives build spawner for spawing builds in mineclone 2 and 5

boomstick
fluxionary

a tool for testing the behavior of tnt

Windmill
Sokomine

Rotating sails and rotor blades for classic and modern windmills.

Ghost Block
Blocky Player

Adds blocks that you can walk through. Build traps, hidden rooms and more!

Flyspeed
ROllerozxa

Fine grained control over your flight speed.

Simple Roads
ROllerozxa

Simple and generic nodes with road markings, for building road networks.

Epidermis
LMD

Live in-game skin editing! Upload & download to & from SkinDB!

Smart Inventory
bell07

A fast player inventory with focus on a many number of items and big screens

Wet Mud
Nicu

Hydrates farmland without using water directly

Cottages for Hades Revisited
SFENCE

Build medieval cottages with furniture, window shutters and roofs, thresh your wheat.

LW Creative Tools
loosewheel

Tools for creative mode.

Rainbow Source
Shara

Adds coloured water.

Automatic Cave Lighting
Hybrid Dog

Add two chatcommands to automatically light up dark places (e.g. caves) with lighting nodes such as torches.

Falls
Just_Visiting

A Particle-based Waterfalls/Lavafalls Mod

Block Exchange
BuckarooBanzai

Cloud worldedit schema exchanger

Better Ice
TheFanne

Modifies ice so that it melts into water when broken, and will be melted by torches

Floating Anchor
Starbeamrainbowlabs

ExtraUtilities' Angel Block for Minecraft in Minetest! Place structures in mid-air with ease.

Numeracy
amalon

Adds blocks for exploring numeracy with children, which join together and change appearance as in the Numberblocks TV programme.

Titanic Mod2
auto.umdenken

Addition to "Titanic Mod", adds several nodes in the style of the RMS TITANIC

Pixelart
Linuxdirk

This mod adds nodes for pixelart grouped in color palettes to Minetest

Dyeable Steel Blocks
nemokitty9

Allows Players to dye Steel for decorative blocks.

Cups
Wuzzy

Decorative cups.

Hex coloured nodes
TimSon

4096 Coloured nodes from #000 to #fff

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.

Drawstruct
Xenon

Draw or generate random structures

DragonEggLock
mi.sh

You can lock a Dragon Egg so it doesnt teleport away

Short Names for worldedit
niwla23

Adds short number aliases to some nodes like in MC

Tortou
LibraSubtilis

Turtle graphics, hyperloop travelingsystem and cubic mobs.

Voxelizer
LMD

Turns 3D models into astonishing voxel builds.

MT POI Map
beaver700nh

Displays a map with points of interest, for any game (no dependencies).

Map Cursor
Blocky Player

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

Greenscreen
ROllerozxa

Brightly coloured nodes for chroma-keying. (greenscreens)

Math blocks
Giulio

Adds decorative math blocks to help in teaching

Topaz Items
WINNIE

Topaz Items for Minetest

Instabreak
Mentos

Instantly break (most) construction blocks.

Symmetool
Nigel

Symmetric building tool for MineTest.

Blood Bane Sword
Blocky Player

OP sword for moderators. In memory of an old teacher, who had a mod similar to this on a private server.

Landscape Shaping
cronvel

Landscape shaping tools and API

ColorBrewer palettes for cartography
pauldpickell

8-bit ColorBrewer palettes texture pack

Plastic Box
Starbeamrainbowlabs

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