My Slopes
Don

MySlopes

My Wood Slopes
Don

Make slopes with wood blocks.

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Angled Stairs
TumeniNodes

Adds angled stairs to the Minetest Game.

Zughy32 colored blocks
MisterE

Plain colored blocks from the Zughy 32 palette.

My Default Fences
Don

Adds more default fences

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

Roadway
X17

Adds simple roads in 4 sizes.

Better Ice
TheFanne

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

My Siding
Don

Adds lines on one side of block to make it look like siding

My Stone Paths
Don

Stone paths

Rainbow Source
Shara

Adds coloured water.

WorldEdit Wall Block
SkyBuilder1717

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

X Clay
SaKeL

Adds hardened clay.

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

My Bricks
Don

Machine to make bricks out of common material

Blox
mt-mods

Adds lots of differently colored and textured blocks to Minetest.

Stained Glass
andersje

Adds various stained glass blocks, originally by doyousketch2

Digilines Lightstone
1F616EMO

Digiline-controlled light-emitting colour blocks

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

Mycorners
Don

Put decorative corners on blocks.

Stoneworks
TumeniNodes

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

ColoredCement
Truemmerer

Add Cement Blocks with unifieddyes support

TP Gate
AiTechEye

Teleport through the gate

Embedded Lights
scr267

Decorative block embedded LED or Potlights

Color Blocks
mt-mods

Contains colored building blocks.

My Paint Extras
Don

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

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

My Ladders
Don

Adds different ladders to Luanti

Tile Floors
ClassicAdam

Various colors of tile flooring in 16px and 256px res

Pink Lava
TenPlus1

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

Cube Nodes
Andrey01

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

Floating Anchor
Starbeamrainbowlabs

ExtraUtilities' Angel Block for Minecraft in Minetest! Place structures in mid-air with ease.

Stack Slabs
TumeniNodes

stackable slabs for Minetest

Safe Chest
Atlante

Add a safe chest with secret password

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

Prefab Redo
cheapie

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

Columnia
mt-mods

Adds simple pillars and columns

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Colored Blocks
sermow

Different colors of: stone, stone bricks, wood obsidian, and glass