Scraps
Goops

Allows to recycle metal tools

Signs Redux
sorcerykid

Signs Redux is a complete rewrite of default signs that adds many new features

Protector Redux
sorcerykid

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

Assets_Warehousepart2
JALdMIC

Part 2 of Assets_Warehouse

Purple ore
X-DE

Adds new purple ore to floating islands and caves from height 200 to 31000.

Element Exchange
enchant97

Exchange nodes into other nodes

Spectator Mode
jp

A mod for Minetest allowing you to watch other players in their 3rd person view.

Prop Hunt Modpack
Jo5629_

Transform into nodes and with a minigame.

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

Great British Pound
angry_hd1

Adds A Simple Currency System

Bedrock Markup Language
sorcerykid

Bedrock Markup Language is an extensible markup language and API for formspecs.

Simple Dice
farfadet46

Simple dice for little games ;)

Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

New pickaxes
Arkatron

Adds new pickaxes

Renewable Fireflies
mecha_moonboy

Registers an ABM on some ground blocks that spawn fireflies if certain criteria are met.

Ldf Race
lister

Race/Parkour Timers and Record Tables

Safe TNT
1F616EMO

Apply height restrictions to TNTs

Minebase Core
ThatCommand

Adds APIs and new dynamic functionalities.

Drawstruct
Xenon

Draw or generate random structures

CSperson's Simple Pebbles
CSperson

A very simple mod that adds natural detritus. Doesn't do much besides that.

Strong Wooden Pickaxe
mufigilang

Add strong wooden pickaxe that destroy stone as fast as diamond pickaxe

Invisible Blocks
Truemmerer

Add invisible Blocks

Rotting Wood
Polynium

Causes wood to slowly rot while exposed to water

Ubertool Mod
HartRend

Provides a combination pick, shovel, and axe tool capable of extreme function. Tool is also illuminated.

Staff Channel
_Xenon

Write messages only to staff

Offline Phantoms
Kimapr

Players leave "phantoms" when leaving; other players can take items from those

treasures
ademant

Treasure nodes with useful items

Cave explorer tool
SFENCE

Cave explorer tool to use acoustic signals for undergound exploring.

Mtg Craft Reverser
Hugues Ross

Makes crafting recipes in Minetest Game reversible

news
GigaByte

adds an editable news section when a player joins

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

Obdy
Sires

Adds some pretty OP tools :)

Vehicle Mash
Panquesito7

Adds many types of vehicles: cars, boats, hovercrafts and more.

Warning: Non-free media.

Splink Storage
Yoreni

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

Cemeteries
SFENCE

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

Unified Hammers
Linuxdirk

Various hammers that can be used to crush nodes.

Colored Steel
cd2

Adds colored steel blocks.

Grimoire
monk

Override tool functionality during runtime

TurtleMiner
BirgitLachner

A Mod to let Kids start programming with a turtle that can move around in the world, and dig and build what the user wants.

Darks
_Xenon

Adds dark stuff