Bridges and handrails
Sokomine

Self-building bridge, small bridge building and handrails

SkyRealm for NodeCore
Warr1024

SkyBlocks inside vanilla NodeCore

Greek
GreenXenith

A large assortment of Greek architecture blocks and materials.

Castle Tapestries
FaceDeer

This is a mod for creating medieval tapestries, as found in castles

pkarcs
TumeniNodes

Adds arched doors

Roads
cheapie

Advanced modern road infastructure (fork)

Angled Stairs
TumeniNodes

Adds angled stairs to the Minetest Game.

Windmill
Sokomine

Rotating sails and rotor blades for classic and modern windmills.

XBlocks
GamingAssociation39

Additional blocks for decoration/building

Banners
Anonymous_moose

Adds decorative banners in all colours of wool.

Stoneworks
TumeniNodes

Stoneworks simply adds some fun, and cool building options to Minetest.

Coloredwood
mt-mods

Colorize some wood!

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Deepslate
Silver Sandstone

Adds deepslate and related building materials.

Mesecons Cart Control
cheapie

Mesecons and digilines-controllable rails

Candles 3D
mazes

Place candles in world. Add, remove or taint candles from placed nodes

Hand Dryer
cheapie

Decorative hand dryers

Plaster
Extex

Adds a variety of Plaster blocks for building.

LTC-4000E
cheapie

Advanced traffic signal controller

Solid Color Blocks
cheapie

Colorable (via unifieddyes) solid-color blocks.

Pillars
citorva

Add a lot of pillars for fun.

Unifiedbricks
wowiamdiamonds

This mod allows the user to re-color default bricks using Unified Dyes, and provides some pattern variations as well.

Arrow Boards
cheapie

Arrow boards for road construction

Super Duper Walls!
Linuxdirk

This mod adds modular flexible walls to Minetest.

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

Colored Blocks
sermow

Different vibrant colors of stone, stonebrick, and wood updated with download compatability

Weedstone Random Mod Thing
chaosomnium

Originally meant to be a simple electronics type mod inspired by redstones, I messed around with the code after getting bored and got this weird mod, and now it's this thing. Enjoy I guess?

Letters
Amaz

Adds a letter cutting tool with letter "signlike" nodes.

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Pink Lava
TenPlus1

Adds pink lava to certain depth of map with new mahogany obsidian block

Digibuilder
BuckarooBanzai

Build nodes with digiline commands

Cottages for Hades Revisited
SFENCE

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

Frame
sofar

A stylish item and node frame that causes no lag/server load.

Alien Tools
chaosomnium

Alien Tools Mod for Minetest - adds Alien Tool, Shield, biome, etc

Better Ice
TheFanne

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

Automatic Cave Lighting
Hybrid Dog

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

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables

Replacer
Sokomine

Exchange/replace nodes with one click.

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Rainbow Source
Shara

Adds coloured water.