Edit
Johannes Fritz

Allows copying, pasting, filling, deleting, opening and saving 3D areas

Woolen Mesh Creator
entuland

Not only wool! Miniaturizes builds and allows rebuilding them too

Comboblock
sirrobzeroone

Allows the stacking of slabs vertically and horizontally

Melterns
IcyDiamond

Tinkers Construct in Minetest!

Connected Chests
Hybrid Dog

Allows making bigger default chests.

Morelights
random_geek

Provides flexible interior and exterior lighting options for different styles of builds.

Dreambuilder Game
mt-mods

Dreambuilder is my attempt to give the player pretty much everything they could ever want to build with, and all the tools they should need to actually get the job done.

UwU (MineClone)
Psyco

Add UwU block, uwu crystal ores, uwu tools and more.

Research N' Duplicate
Noodlemire

Obtain and research enough of a specific item to unlock the ability to infinitely duplicate it.

Cblocks
TenPlus1

Adds coloured wood, glass and stone blocks.

WorldEdit Additions
Starbeamrainbowlabs

Extra tools and commands to extend WorldEdit. Currently has over 22 commands!

ts_furniture
Thomas-S

Adds basic furniture (Chairs, Tables, Small Tables, Tiny Tables, Benches).

ArtDeco
TumeniNodes

This mod just adds some new building blocks to Minetest.

The Build Spawner
Thunder1035

Gives build spawner for spawning builds which makes city creation easy

Amethyst
alerikaisattera

Amethyst, basalt, calcite and related building blocks

Fancy Stained Glass
v-rob

Adds fancy and highly adaptable stained glass and spiked iron railing.

NodeCore Stairs
Warr1024

Adds an assortment of stairs and slabs to NodeCore

Bouncy Bed
MeseCraft

Simply makes beds bouncy.

Terraform
x2048

Adds terraforming tools to your creative toolbox (WIP)

Nyan Cat
rubenwardy

nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan

Multiple Biome Generator
chaosomnium

230 Pseudorandomly Generated Biomes, Trees, Fruits, Ores, Tools, and Liquids

mymillwork
Don

Crown molding, columns and baseboards of different styles.

Rocks
Just_Visiting

Adds fun rocks to bring new life to your survival and creative creations!

Cloud Items
Panquesito7

Powerful cloud tools.

Meme blocks
haybame

adds memes to your minetest game

Oxidizing Copper
StarNinjas

This mod aims to make copper/bronze more realistic by making them slowly oxidize into a bluish/green block when exposed to water.

Large Bricks
AwesomeDragon97

Adds large stone bricks.

Ocean
StarNinjas

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

Wilhelmines Natural Biomes
Liil

Adds 9 new biomes

Wilhelmines Living Floatlands
Liil

Adds various prehistoric animals to your Floatland Zone, if you are using V7 Map Generator.

KSurvive
MadKamel

A game that changes much of MTG's gameplay.

Streets
webdesigner97

Adds modern roads to Minetest.

Ilights
mt-mods

Adds various lights.

Castles++
philipbenr

This is a modpack all about creating castles and castle dungeons.

Charcoal
X17

Make charcoal from trees and use this as fuel

KetchupLand
danil_2461

A game with tomatoes, ketchup, and mese.

Flowerpot
sofar

A stylish flowerpot that can contain most plants.

mcl_glass_doors
Tony996

Adds coloured Glass Doors to Minetest subgame (MineClone2).

Simple Furniture
Tarruvi

Adds a selection of furniture with simple designs

Stained Glass
alerikaisattera

Stained glass blocks and panes