Chat translate
ksandr

Adds commands to translate chat messages into the recipient's language.

Kill Button
niwla23

Allows you to kill yourself from the UI

NodeCore Runestones
Winter94

Play games of chance, or decorate your builds!

Smart Vector Table
Noodlemire

API that adds a way to create tables indexed by 3D Vectors.

Bunny Hop
Flay Krunegan

Allows players to move faster using a key combination

Shortcut
Derevio

Adds the ability to set shortcuts to commands.

mTimer
Linuxdirk

Ingame timer for showing current playtime, current day time, ingame time, etc.

No Melterns, no tools
InfiniteCoder01

You can't craft tools without melters now. Progression becomes harder

Renewable Fireflies
mecha_moonboy

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

VPS Blocker
Lejo

Block players using vpns, proxys or other hosting services

NodeCore Sharks
GreenXenith

Hammerhead "sharks" for NodeCore

Select Item
Wuzzy

Allows other mods to add a simple form to choose a single item.

Tool Crafter
508linx

use any posible material craft tool in crafttable

Death Swap
Jo5629_

Switch places with someone random.

Stent
AFCM

A formspec based arena entrance type for arena_lib

Global Patterns
Albert-Dimensioner

Place a node to generate a pattern from that node using that node

HTML to Luanti Hypertext
1F616EMO

Convert HTML to Luanti Hypertext for formspecs

Petroglyph Maker
Neuromancer

Create your own petroglyphs on Desert Stone

Compression Lib
The4spaceconstants

A library that provides functions to procedurally register compressed versions of nodes.

Go
LMD

A game of Go

Chat Anticurse
lag01

Kick player out when they type a curse word in chat or using /me or /msg command.

CentralAuth
1F616EMO

Player account unification across Luanti servers

Cartographer for Repixture
Hugues Ross

Adds regional maps that you can craft and place (Repixture version)

Signs Redux
sorcerykid

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

World of Life
LMD

Simulates 3D cellular automata in your entire world. WARNING: you will lose items & buildings in your world.

Cid Music Player
ekl

Plays music

Technic Transporter
Fruitsnack

Mod that adds a technic-powered HV transporter

Simple MOTD
Fruitsnack

Welcome screen with an option to grant privileges

anarchy
solsword

Anarchy PCG library (see https://cs.wellesley.edu/~pmwh/anarchy/lua/ w/ docs at https://cs.wellesley.edu/~pmwh/anarchy/lua/docs32/index.html)

Markdown Poster
Thresher

Adds a markdown variant to the signs mod (from display modpack)

PvP Control
mike.monkeybiter

Allow players to set their own ability to hurt or be hurt in PvP, by chat command or by pressure pads. Nametag colour changes to reflect status.

@-Chat
orwell

Adds an alternative Private Message (PM) system

superspeed
Giga_M

change the player's speed x10

Nyan Cat Redo
Blocky Player

nyan lazer, nyan soda and sugar. What's not to love?

filter++ lib
rstcxk

provides an API for filtering text

Error Mail
1F616EMO

Send mail to the admin with error traceback

Blueprints
Luke

Allows players to easily copy+paste nodes.

Lua Button
IlzumiZeminori

Button that executes custom lua code on rightclick

Opening Hours
tacotexmex

Limits the days and hours a server is open to players.

Obdy
Sires

Adds some pretty OP tools :)