Glostone Building Blocks
Wovado

Adds basic glostone-based building materials

crouched
GigaByte

the player crouches

digicolor
fluxionary

node whose color can be set via digilines

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

Embedded Lights
scr267

Decorative block embedded LED or Potlights

More Crafting Recipes
RasPiManiac

Adds more default crafting recipes

Parcdeco
Floatland

adds grass-like nodes that have flowers

My Wood Slopes
Don

Make slopes with wood blocks.

Mycorners
Don

Put decorative corners on blocks.

Technic Recycle
DumbDave961

Recycling recipes for Technic items.

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

My Mine Shaft
Don

Makes tunnels straight down that you can climb

Dyed Water
erov

Dyed water for mtg

Blox
mt-mods

Adds lots of differently colored and textured blocks to Minetest.

Technic Diamonds
mt-mods

Use technic to grind and compress diamonds.

Digichat
SpinningCubes

Adds a block for sending chat messages using Digilines.

Magma
SuperStarSonic

Adds volcanoes, lava vents and new magma blocks

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

Cemeteries
SFENCE

Generate graves and cemeteries in world. For Luanti 5.12 and newer.

Hoverboard
mazes

Hoverboards

My Bricks
Don

Machine to make bricks out of common material

Realm Lamp
GenesisMT

A rainbow gradient block for decoration and with differents speeds.

morebiomes
mzs.112000

A simple mod adding a few biomes to Minetest Game

Chest Tools
Sokomine

Shared locked chests with bag support and quick inventory access

GC Gamemode
stellarorion

Easily switch between the survival and creative inventory

Randomized Map-specific Ores
Piezo_

Adds two randomly created ores to each world with varying properties depending on the world's seed

Slot Machine Mini-games
mt-mods

Provides an "engine" to drive simple slot machines (includes two). Spins reels, takes in/pays out in Minegeld (Dan's currency mod), etc.

Card deck
mijutu

Deck of cards and table blocks

Pink Lava
TenPlus1

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

Sugar
X17

Adds eatable sugar made of papyrus and a sugar block

faction items
GigaByte

add some items to be used as prizes for special events or player achievements

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

obsidian
GigaByte

more uses for obsidian

Technic Grass Clean
1F616EMO

A tool like chainsaw, but cut grass, not tree.

Bouncy Leaves
1F616EMO

Adds bouncy and fall damage reduce effect to leaves

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

An API for automatically registering recipes, nodes and ore generation.

LW Wires
mt-mods

Wires and bundle cables.

Stack Slabs
TumeniNodes

stackable slabs for Minetest

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

Movement Essentials
Daniel

Adds umbrella for slow fall (hang gliders), consume mese crystal to recall (return to spawn), and throw fragments to teleport.