My Workshop
Don

Workshop benches

Pillars
citorva

Add a lot of pillars for fun.

Embedded Lights
scr267

Decorative block embedded LED or Potlights

Nodes for rails
MatyasP

Some nodes for building railways, primary for Advtrains railways.

Ethereal Mosses
1F616EMO

More mosses for dirt types in Ethereal NG

Stoneworks
TumeniNodes

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

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

Columnia
mt-mods

Adds simple pillars and columns

My Chisel
Don

A chisel that allows you to shape blocks.

My Paths
Don

Dirt paths.

My Slopes
Don

MySlopes

My Wood Slopes
Don

Make slopes with wood blocks.

Mypaint
Don

Provides paint brushes and buckets for other mods to use to paint their items.

My Fences
Don

Adds nice looking fences.

Better Ice
TheFanne

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

ColoredCement
Truemmerer

Add Cement Blocks with unifieddyes support

My Default Glass
Don

Glass made from many default items

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

Node houses
MatyasP

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

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

My Default Lights
Don

Simple lights made from default material

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Colored Blocks
sermow

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

My Cobble
Don

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

My Mesh Nodes
Don

A machine that makes different shape node

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

Plasterwork
Sokomine

Add colored plaster coats to nodes

My Press
Don

A press to flatten steel

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Tac Nayn
GreenXenith

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

Parcdeco
Floatland

adds grass-like nodes that have flowers

Blox
mt-mods

Adds lots of differently colored and textured blocks to Minetest.

More Snow
Sokomine

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

WorldEdit Wall Block
SkyBuilder1717

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

Zughy32 colored blocks
MisterE

Plain colored blocks from the Zughy 32 palette.

Poly Decor
mt-mods

My spin on decorative stuff.

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Roadway
X17

Adds simple roads in 4 sizes.

Useful Contraptions
theFox

Some useful contraptions / machines.