Raw Ore Blocks
Silver Sandstone

Adds block forms of metal lumps.

Trails
X5Dragonfire

Allows you to make paths in grass with ground roller

Morebricks
CalebJ

Adds an assortment of new bricks to build with.

Frame
sofar

A stylish item and node frame that causes no lag/server load.

Replacer
Sokomine

Exchange/replace nodes with one click.

Basalt + Fertilizer
Daniel

Adds basalt to the underground which can be made into fertilizer. Useful for farming flowers if you need dye for colored nodes.

Foodblocks
Blockhead

Solid cubes of food for mass storage or building.

Climbable Trapdoors
ZenonSeth

Makes the wood and steel trapdoors climbable

Tomb Stones
Nathan.S

Adds many shapes and styles of tombstones.

Pigiron
TenPlus1

Adds pig iron ingots which need to be crafted to make steel, also blocks and stairs.

Bricks Plus
X17

Adds different brick patterns

Blox
mt-mods

Adds lots of differently colored and textured blocks to Minetest.

Titanic Mod
auto.umdenken

adds several nodes in the style of the RMS TITANIC

Super Duper Walls!
Linuxdirk

This mod adds modular flexible walls to Minetest.

Balloon Blocks
TBSHEB

Adds balloon blocks that can be placed on air.

Mylandscaping
Nathan.S

Lets you put up decorative walls around your gardens, and make pretty hardscapes.

Slats
v-rob

Adds decorative slats that have a lot of uses.

GloopTest Pack
GloopMaster

Adds a collection of things into minetest. As it stands, this adds three different modules.

Block Exchange
BuckarooBanzai

Cloud worldedit schema exchanger

Stack Slabs
TumeniNodes

stackable slabs for Minetest

Pkarcs for Hades Revisited
SFENCE

Adds arched doors to Hades Revisited.

Titanium
Hybrid Dog

Adds titanium which is very strong and lasts for a long time.

Placeable Buckets for Catching Rainwater
Noodlemire

Allows empty buckets to be placed as nodes in order to collect rainwater.

Dirtcraft
dayer4b

Adds automatic crafting recipes for making most kinds of dirt

Fast Build Tool
playduin

Tool for fast box building

Nodecore Paint
Kimapr

Paint anything on node surfaces

Copper Rails
AwesomeDragon97

Adds a new directional rail made from copper and mese crystals.

vexcazer
AiTechEye

Ultimate build+mine & admin tool

Presents
Juri

Adds some blocks that look like presents.

Visual Bots
Nigel

Visually programmable turtle bots

Disable Build Where They Stand
LMD

Disables placing blocks at places where they would collide with a player

Quarry Mechanics
kestral

Adds quarry mechanics to stone nodes.

Staffs
CalebJ

Staffs with various uses

ponti
ulla

brige/door

Invisible Wall
X17

Adds a simple invisible block

Pixelart
Linuxdirk

This mod adds nodes for pixelart grouped in color palettes to Minetest

Summer
DuckGo

Enjoy the summer at Survivetest

Last Login Signs
fgaz

Adds signs that show the last login of players that right-clicked them

File Cabinets
danil_2461

Adds the file cabinets from Windows.

Definition Ripper
Warr1024

Generate inert facades from node/item definitions for use in other games