New Economy
Aa1a

Add 3 coins in game ( gold , steel , diamond )

ColorBrewer palettes for cartography
pauldpickell

8-bit ColorBrewer palettes texture pack

Spawn Command
Logikí

Adds /spawn and /city to your world, you can set places ingame without restarting the server

Falls
Just_Visiting

A Particle-based Waterfalls/Lavafalls Mod

End Portal Wand
TomCon

Adds a wand item for easy placement of end portals on right click.

Invisible
AiTechEye

Hide nametag while sneaking, or invisible

Personal Bookmarks
AntumDeluge

Allows players to create a limited number of personal bookmarks to where they can teleport.

Chat3
octacian

Makes chat on a populated server much easier to understand and keep up with.

NodeCore Nature: Revised
Warr1024

Updated, fixed, enhanced edition of Winter94's NodeCore Nature

Central Message
Wuzzy

Simple API to show messages to the center of the screen to players.

Steel bar blocks
sotha1

adds blocks made of steel bars (xpanes)

Bed Jumping
playduin

You may jump on the bed

Thermometer
csirolli

A thermometer to check the temperature

S Potions
Stakbox

Adds a simple potion brewing system for MTG. Includes API for adding custom potions.

bucket (redo)
fluxionary

a bucket which functions like a normal tool.

Mesecons Soundblock
nitro2012pl

Mesecons Soundblock

Complete and Total Lua-Only Inventory Rewrite
Noodlemire

Creates a completely custom inventory system, which doesn't rely at all on any of the usual UserData objects.

Fire extinguisher
SkyBuilder1717

Adds fire extinguisher, which can extinguish some fire

NodeCore Sharks
GreenXenith

Hammerhead "sharks" for NodeCore

Powered Tools
SFENCE

Tools powered by electric/combustion engine. Includes brush cutter and chainsaw.

obsidian
GigaByte

more uses for obsidian

More Coral
Nathan.S

Adds coral in more colors.

Landscape Shaping
cronvel

Landscape shaping tools and API

New Biomes
Arkatron

If you like underground biomes, this thing is for you.

Wildflower Fields
mzs.112000

Adds a wildflower field biome to Minetest Game.

Colored Strings
Alib234

Adds colored strings and allows to create wool from 4 strings and viceversa

Hidestone
shaft

Adds a stone that can hide up to 100 blocks.

Cave Generator
Noordstar

A custom cave generator engine

Phonograph album: VoxelLibre
1F616EMO

Songs from VoxelLibre for Phonographs

Mortar
suhaib

Adds a mortar cannon

Gear Up
Random Wizard

A mod that adds wearable gear and allows re-color of items.

Aliases
Flay Krunegan

Change playername in the server.

Solar Phases
VeproGames

Simulate variable daytime lengths, including polar day / night

Uncrafter
JoeEnderman

Adds an uncrafting table

Cube Nodes
Andrey01

Adds colorful blocks with various symbols as letters, digits, punctuation, emoji and special signs.

Interchangeable Hands
octacian

Demonstration of Minetest's capability to dynamically change the player hand.

Raids
DragonWrangler

Allows server owners or server admin to start mob raids to attack settlements or players

Mycorners
Don

Put decorative corners on blocks.

Leather Armor
X17

Adds an armor made of leather

Technic Recycle
DumbDave961

Recycling recipes for Technic items.