My Cobble
Don

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

Camouflage Mesecon Blocks
WoGoMo

This package adds several solid blocks that conduct either mesecon power or digilines signals.

More Snow
Sokomine

snow and wool for stairs - nicer winter landscape and snow-covered roofs

Cement
Linuxdirk

A craftable and “makeable“ cement blocks for Minetest Game

Pillars
citorva

Add a lot of pillars for fun.

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

Superimposed Window Frames
1F616EMO

Add a wooden frame over windows

Falls
Just_Visiting

A Particle-based Waterfalls/Lavafalls Mod

Quartz New
alerikaisattera

Quartz and quartz glass building blocks

My Press
Don

A press to flatten steel

awuuwa's Building Blocks
awuuwa

various building blocks

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

Ethereal Mosses
1F616EMO

More mosses for dirt types in Ethereal NG

Tac Nayn
GreenXenith

Adds Nyan Cat's evil twin, Tac Nayn (and a gray-scale rainbow).

My Paint Extras
Don

Allows you to paint dirt, gravel, wood, trees and more.

Columnia
mt-mods

Adds simple pillars and columns

My Wool
Don

More wool colors

Stoneworks
TumeniNodes

Stoneworks simply adds some fun, and cool building options.

Angled Stairs
TumeniNodes

Adds angled stairs to the Minetest Game.

Tinted Glass
1F616EMO

Colored glass

Traverse
shaft

Adds cannons, pipes and tractor beams to allow players and entities to traverse the world in new ways.

Pole Scaffolding
SFENCE

Craftable pole scaffoldings. Support default game and Hades Revisited game.

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Zughy32 colored blocks
MisterE

Plain colored blocks from the Zughy 32 palette.

My Wood Slopes
Don

Make slopes with wood blocks.

More Curves
Just_Visiting

Adds 10 new curve shapes to game.

Dyeable Steel Blocks
nemokitty9

Allows Players to dye Steel for decorative blocks.

My White Block
Don

a white block

Better Locks
SkyBuilder1717

Adds locks and locked doors

Prefab Redo
cheapie

Cheapie's version of Dan's old prefab mod, which adds pre-fabricated concrete elements: catwalks, benches, ladders, railings...

Digilines Lightstone
1F616EMO

Digiline-controlled light-emitting colour blocks

Maple tree
Duvalon

Adds a maple tree placed during world generation.

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Embedded Lights
scr267

Decorative block embedded LED or Potlights

My Paths
Don

Dirt paths.

Steel bar blocks
sotha1

adds blocks made of steel bars (xpanes)

Node roads
MatyasP

Add much of one-node roads and crossroads, road bridges and slopes

Node houses
MatyasP

Node houses is a mod by MatyasP that adds one-node block of houses, for crafting using items from mode default.

WorldEdit Wall Block
SkyBuilder1717

Adds block and item for making big structures easily as possible.