Openion Yeast
Wovado

Adds Yeast and a Yeast Barrel

Item exchange shop
Krock

Provides a simple exchange shop (currency compatible)

S Potions
Stakbox

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

Time Stone
j45

This mod adds 2 single use stones, a day stone and a night stone, the day stone turns time to sunrise and the night stone turns time to sunset.

rtp
bookgirl

Random teleport commands (/rtp and /wild)

My Torches
Don

Changes default torches to ones that burn out and cause damage

Offline Phantoms
Kimapr

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

color_lib
bookgirl

adds HEX colouring

Dementia Mod
tommyaweosme

tries to simulate dementia in luanti

Purple ore
X-DE

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

LDF Race And Parkour
lister

Race/Parkour Timers and Record Tables

Parcdeco
Floatland

adds grass-like nodes that have flowers

Realm Lamp
GenesisMT

A rainbow gradient block for decoration and with differents speeds.

Multitool Mod
thediamondlego

Adds a new tool that does the job of all the other tools(except hoe and screwdriver). Also has bouble the durability of a diamond tool!

Random (Useful) stuff
pl608

A library that adds well... Random Stuff

Cave explorer tool
SFENCE

Cave explorer tool to use acoustic signals for undergound exploring.

My Rocks
Don

Places rocks around the world

Color Blocks
mt-mods

Contains colored building blocks.

Ocular Networks
mt-mods

Draw power from the world, and use it to power machines and tools.

CSperson's Simple Pebbles
CSperson

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

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

doorbell
Miniontoby

A doorbell mod with sound

Throwable Snowball
ComputeGraphics

Adds a throwable Snowball

Tac Nayn
GreenXenith

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

Rotting Wood
Polynium

Causes wood to slowly rot while exposed to water

Spawn redo
cathaya7d4

Drop-in replacement for default/spawn for more third-party biomes

Beautiful Boulders
regulus

Procedurally Generated Rocks with (pretty) Accurate Collision Boxes

Virtual Key
louisroyer

Adds virtual keys registerers.

Metatool
SX

Provides API to register node metadata tools along with few useful tools

Player Speed
Boot

Displays the player's speed (walking, running, falling) in m/s and km/h in the HUD.

Respawn Kit
Deadlock

Adds a "respawn-kit"-Chest. A Copy of everything you put in it, will be given to you on respawn. (With configurable Black/White-List)

Scripted World Editor
Neuromancer

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

Phonics Library
Neuromancer

Provides a library for creating Phonics (Learn how to read) mods in different languages.

Grimoire
monk

Override tool functionality during runtime

MathPlot
kyleclaassen

A tool for constructing mathematical curves/surfaces/solids.

My Stacks
Don

Changes the max number of items in each stack

Assets_Warehousepart2
JALdMIC

Part 2 of Assets_Warehouse

Hero Mines
Neuromancer

Can you rescue the miner trapped at the bottom of the mine? Creates mines that are used as levels for the game H.E.R.O.

chatcolor
bookgirl

hex and bukkit-style chat colors with per-color privileges

Better Fences (1F616EMO Redo)
1F616EMO

Allow fences to connect to all nodes