Blox
mt-mods

Adds lots of differently colored and textured blocks.

My Cobble
Don

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

Pillars
citorva

Add a lot of pillars for fun.

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

My White Block
Don

a white block

Prefab Redo
cheapie

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

Bunker Block
Spooks

Add blast proof concrete and its craft items.

Banners
Anonymous_moose

Adds decorative banners in all colours of wool.

X Clay
SaKeL

Adds hardened clay.

XConnected
Sokomine

connected nodes like xpanes, xfences, walls

Angled Stairs
TumeniNodes

Adds angled stairs to the Minetest Game.

My Paint Wood
Don

Paint wood

Embedded Lights
scr267

Decorative block embedded LED or Potlights

Nodes for rails
MatyasP

Some nodes for building railways, primary for Advtrains railways.

My Paint Extras
Don

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

My Wood Slopes
Don

Make slopes with wood blocks.

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

My Blocks
Don

Special Blocks

My Paths
Don

Dirt paths.

Zughy32 colored blocks
MisterE

Plain colored blocks from the Zughy 32 palette.

Columnia
mt-mods

Adds simple pillars and columns

Tile Floors
ClassicAdam

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

Better Ice
TheFanne

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

Parcdeco
Floatland

adds grass-like nodes that have flowers

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

Stoneworks
TumeniNodes

Stoneworks simply adds some fun, and cool building options.

More Snow
Sokomine

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

Mycorners
Don

Put decorative corners on blocks.

Better Locks
SkyBuilder1717

Adds locks and locked doors

WorldEdit Wall Block
SkyBuilder1717

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

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

Rainbow Source
Shara

Adds coloured water.

Saphire
Ryft77

Adds saphire stuff

Pink Lava
TenPlus1

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

Useful Contraptions
theFox

Some useful contraptions / machines.

Maple tree
Duvalon

Adds a maple tree placed during world generation.

Alien Tools
chaosomnium

Adds Alien Tool, Shield, biome, etc.

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing