Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

Ethereal Mosses
1F616EMO

More mosses for dirt types in Ethereal NG

Pink Lava
TenPlus1

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

ColoredCement
Truemmerer

Add Cement Blocks with unifieddyes support

Rainbow Source
Shara

Adds coloured water.

My Cobble
Don

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

Digilines Lightstone
1F616EMO

Digiline-controlled light-emitting colour blocks

My Paint Extras
Don

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

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

More Snow
Sokomine

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

Blox
mt-mods

Adds lots of differently colored and textured blocks to Minetest.

Abritorch
mt-mods

multicolored torches

Better Locks
SkyBuilder1717

Adds locks and locked doors

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

Nodes for rails
MatyasP

Some nodes for building railways, primary for Advtrains railways.

Bunker Block
Spooks

Add blast proof concrete and its craft items.

My Press
Don

A press to flatten steel

My Default Fences
Don

Adds more default fences

Color Blocks
mt-mods

Contains colored building blocks.

My Paths
Don

Dirt paths.

Cube Nodes
Andrey01

Adds colorful blocks with various symbols as letters, digits, punctuation, emoji and special signs.

My Flooring
Don

A basic set of flooring

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

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.

Node houses
MatyasP

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

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

Falls
Just_Visiting

A Particle-based Waterfalls/Lavafalls Mod

Zughy32 colored blocks
MisterE

Plain colored blocks from the Zughy 32 palette.

Poly Decor
mt-mods

My spin on decorative stuff.

Embedded Lights
scr267

Decorative block embedded LED or Potlights

Glostone Building Blocks
Wovado

Adds basic glostone-based building materials

My Stone Paths
Don

Stone paths

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

My Slopes
Don

MySlopes

My Chisel
Don

A chisel that allows you to shape blocks.

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Useful Contraptions
theFox

Some useful contraptions / machines.

Prefab Redo
cheapie

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