Mesecons Stealthnodes
Clyde

Register your own Ghoststones.

Dirt Tunneler
Neuromancer

Makes dirt deeper and you can tunnel through it just by walking through it. Press spacebar/shift to tunnel upward/downward with auto placed ladders.

Scripted World Editor
Neuromancer

API that allows you pass in scripting tables to fill a series of shapes of different sizes with different nodes

Nyancat's heaven (reworked)
Hybrid Dog

Adds a nyanland in the sky

Anarglass
VerdiSchubert

Some kinds of glass nodes

Unstable Caves
M BLOC

Some stones may cave in if punched, making underground expeditions more risky.

Discrete Player API
Hume2

A library for games which attaches players to node grid

Snow Cones
GreenXenith

Some simple flavored snow cones.

LWColorable
loosewheel

Various colorable decorative blocks.

Item exchange shop
Krock

Provides a simple exchange shop (currency compatible)

Element Exchange
enchant97

Exchange nodes into other nodes

Uncrafter
JoeEnderman

Adds an uncrafting table

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

Livetools
AiTechEye

Craft tools which have a life of their own - they can fight, dig, or place for you

Protector Redux
sorcerykid

An efficient and flexible node-based protection scheme for multiplayer worlds

More Fuels
pl608

Adds a few new fuels for use in furnaces such as gasoline and petrolium

Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

My Item Chest
Don

A chest that spawns different items

Horsetail++
TX Miner

Lets you eat Horsetails from Paleotest. Very helpful in caves!!!

Splink Storage
Yoreni

Adds items that can store massive amounts of other items in your inventory

Ancient Runes
spixi

Ancient Runes

Tac Nayn
GreenXenith

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

Tree Particles
SuperStarSonic

Adds particles of falling leaves when you punch a tree

Hard Trees
octacian

Require tools to break trees and introduce beginner-tier rock tools.

Blood Bane Sword
Blocky Player

OP sword for moderators. In memory of an old teacher, who had a mod similar to this on a private server.

ping
GigaByte

show your ping

Fareboxes and Faregates
1F616EMO

Signal-emitting fareboxes and faregates

Floating Anchor
Starbeamrainbowlabs

ExtraUtilities' Angel Block for Minecraft in Minetest! Place structures in mid-air with ease.

Compactor
alerikaisattera

A Technic based machine for converting certain items into more compact forms

Additional Gravel
Hordeking

Adds overgrown gravel, similar to mossy cobblestone.

Flowing Concrete
DumbDave961

Adds flowing concrete that hardens over time. Cheap alternative to lava cooling.

treasures
ademant

Treasure nodes with useful items

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

morebiomes
mzs.112000

A simple mod adding a few biomes to Minetest Game

My Stacks
Don

Changes the max number of items in each stack

Top players
GigaByte

Adds a kill, deaths, and kd counter to players.

Decraft
iarbat

De-craft items with the decrafting workbench.

Meseconometer
DS

Device to meassure time of mesecon signals in globalsteps

Hardcorebrix
drkwv

Adds durable building materials that won't break on a first dig.