My Wool
Don

More wool colors

Kotatsu Tables
Piezo_

Adds a new piece of furniture based on Japanese kotatsu tables

New bricks
DimonPy

adds 119 new bricks and grinder

Rainbow Source
Shara

Adds coloured water.

Glostone Building Blocks
Wovado

Adds basic glostone-based building materials

Node roads
MatyasP

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

My Paint Wood
Don

Paint wood

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

ColoredCement
Truemmerer

Add Cement Blocks with unifieddyes support

Digilines Lightstone
1F616EMO

Digiline-controlled light-emitting colour blocks

Colorable banisters
MatyasP

add support for colorable banisters and banisters with repeating nodebox

My Chisel
Don

A chisel that allows you to shape blocks.

Base Craft
Jenny1611

BaseCraft adds essential, high-quality building blocks like concrete slabs and stairs to complete your constructions with consistency and style

Alien Tools
chaosomnium

Adds Alien Tool, Shield, biome, etc.

CreNodes
gtzi203

Adds useful nodes for the creative mode, like barriers or light nodes.

My Stone Paths
Don

Stone paths

Pink Lava
TenPlus1

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

Bell Chimes
sorcerykid

Adds a set of church bells that are chimed automatically at different periods.

My Default Lights
Don

Simple lights made from default material

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Hexadecimal Colours
erov

Adds nodes with colour palattes for each 3 character hex value like #fff

Steel
mt-mods

Adds a range of steel materials that are recyclable.

Prismatic Stone
doomburger

Adds decorative prismatic stone blocks, coral dyes, and six new crafting recipes.

Beds for Minetest Classic
MyNameIsKid

Beds for Minetest Classic by MyNameIsKid.

My Bricks
Don

Machine to make bricks out of common material

Stairs and slabs of wool
X-DE

Stairs and slabs of wool

Steel bar blocks
atum785

adds blocks made of steel bars (xpanes)

My Dye
Don

More dye colors

Node houses
MatyasP

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

My Paint Extras
Don

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

Stoneworks
TumeniNodes

Stoneworks simply adds some fun, and cool building options.

Quartz New
alerikaisattera

Quartz and quartz glass building blocks

Better Ice
TheFanne

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

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

My Wood Slopes
Don

Make slopes with wood blocks.

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

Plastic Box
Starbeamrainbowlabs

Adds a recolourable plastic box. Fork of @cheapie's version with improvements.

Pizzas and cakes - pack 1
MatyasP

add some pizzas and cakes to 'pizzas'

Bouncy Mushrooms
AirplaneMan

Adds Bouncy Mushrooms to MT