Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Stoneworks
TumeniNodes

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

ColoredCement
Truemmerer

Add Cement Blocks with unifieddyes support

Embedded Lights
scr267

Decorative block embedded LED or Potlights

Stained Glass
andersje

Adds various stained glass blocks, originally by doyousketch2

More Snow
Sokomine

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

Falls
Just_Visiting

A Particle-based Waterfalls/Lavafalls Mod

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

X Clay
SaKeL

Adds hardened clay.

Ghost Block
Blocky Player

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

Pillars
citorva

Add a lot of pillars for fun.

Waterfalls
Termos

Adds water erosion, so flowing water forms somewhat more realistic looking waterfalls.

Bunker Block
Spooks

Add blast proof concrete and its craft items.

Color Blocks
mt-mods

Contains colored building blocks.

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Abritorch
mt-mods

multicolored torches

Chemistry
Emiliano

A package with some elements and compounds

Parcdeco
Floatland

adds grass-like nodes that have flowers

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

XConnected
Sokomine

connected nodes like xpanes, xfences, walls

Columnia
mt-mods

Adds simple pillars and columns

Blox
mt-mods

Adds lots of differently colored and textured blocks to Minetest.

Brick Walls
philipmi

Adds brick walls from different types of bricks.

Steel bar blocks
sotha1

adds blocks made of steel bars (xpanes)

Saphire
Ryft77

Adds saphire stuff

Better Ice
TheFanne

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

Kotatsu Tables
Piezo_

Adds a new piece of furniture based on Japanese kotatsu tables

Rainbow Source
Shara

Adds coloured water.

Tinted Glass
1F616EMO

Colored glass

Pink Lava
TenPlus1

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

Ethereal Mosses
1F616EMO

More mosses for dirt types in Ethereal NG

Node roads
MatyasP

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

Maple tree
Duvalon

Adds a maple tree placed during world generation.

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

Rotting Wood
Polynium

Causes wood to slowly rot while exposed to water

Node houses
MatyasP

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

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!