Placeable Buckets for Catching Rainwater
Noodlemire

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

Sedimentology
sofar

A mod that adds realistic erosion and degradation of rocks.

Wet Mud
Nicu

Hydrates farmland without using water directly

Dirtcraft
dayer4b

Adds automatic crafting recipes for making most kinds of dirt

More Pickaxes
Koda_

Adds additional pickaxes to the game

Multitools
ChimneySwift

Adds a series of multi-purpose tools to Minetest

Fast Build Tool
playduin

Tool for fast box building

Mob Crab (Beta)
Can202

Adds Crabs.

Bread
Lahusen

Just my favourite bread recipes

X-fangs
Octavian2011

adds suits for speed and look

Chains
X17

Adds chains to climb or decorate

The Confluence
MisterE

A luamap example - a small (500x100x500) Island in the middle of the ocean with 4 rivers that run from the center to the sea.

Axis Tools
mt-mods

All the functionality of tinkers construct, but all in your inventory.

blackhole containment box
Soundwavez

cool swirvy gravitational blackhole boxes, that can be used to "ahnialate" enemy bases, or for "deforestation" aah i love abms! (extra dramatic!))

Swamps
Hybrid Dog

Adds swamps

Multiplant
Firefall

Grow Multiplants and get a random seed or flower!

Titanium
Hybrid Dog

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

vexcazer
AiTechEye

Ultimate build+mine & admin tool

Mistere's Adventure Map Island Creator
MisterE

A 1000x1000 canvas for your imagination

Un-Craft Table
Troodon

Adds an uncraft table

Missions
BuckarooBanzai

Adds blocks to create missions with rewards, timeout and penalties.

Guinea pig
DrPlamsa

Adds guinea pigs.

Luscious
sofar

Bring color into the mgv7 mapgen world.

Tomb Stones
Nathan.S

Adds many shapes and styles of tombstones.

Basic Grenades
LandarVargan

Adds some basic grenades using the grenades API

voxelmanip experiments and remade math mandelbox mapgen
chaosomnium

Voxelmanip mapgen with strange layered zone experimental mapgens.

Music Player
Jose_ManuelS18

Adds a music player and discs

Invisible Wall
X17

Adds a simple invisible block

Basic Anvil
MikeRedwood

Adds an easy tool repair craft

City Block II
sorcerykid

Disables use of water and lava buckets within a designated area

golden_bread
MR_breaddz

golden bread

Unified Hammers
Linuxdirk

Various hammers that can be used to crush nodes.

Random Cool
pl608

Adds random ores on lava cool

Boring RPG
Lebedev

New items blocks and other pieces are waiting for you here

Kick voting
lag01

Allow players to vote to make life of selected griefers and especially agressive players harder.

The Grue mod
Majozoe

It is pitch black. You are likely to be eaten by a Grue.

book_runner
fluxionary

run a command and put the output in a book

Utilities for Underch - extension pack
Hume2

Extend the Underground Challenge by miscelaneous utilities and change some recipes

Quarry Mechanics
kestral

Adds quarry mechanics to stone nodes.

Sailing
cakenggt

Live in a tropical paradise where you can sail, mine coconuts, etc.