Death Coords
Niden

Show Death Coordinates

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.

Open Inventory
Grandel

Remotely open player inventories with server privilege.

Names
Zeralyth

Settable Names Mod

Archipelago for Citadel
Warr1024

Connect Citadel to Archipelago Multi-world Randomizer

Chat Anticurse
lag01

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

plots
bookgirl

plot world system inspired by PlotSquared for Luanti

Bugbug Chat Logger
bugbug11

Logs chat messages in worlds/worldname/chat.txt

Mines
ApolloX

Regenerating terrain

Archipelago for Piranesi
Warr1024

Connect Piranesi Restoration Project to Archipelago Multi-world Randomizer

Colored Chat Text
Bob64

This makes the chat messages a different color depending on what you set it to in the settings.

TransCryptor
Flay Krunegan

Text to Binary, Binary to Text, Text to Morse, Morse to Text, Binary to Morse, Morse to Binary.

LuaJIT verbose mode
frogTheSecond

Imports the same module as "luajit -jv <filename>"

chatcolor
bookgirl

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

Dynamic Passgate
fulgidus

Invite-only server gate with dynamic per-user passwords

playervault
bookgirl

A personal and admin-accessible player vault.

Nations
Rafael173

Nations mod

Terramod-Staff
Bapt-tech

Many commands and functions for admins and moderators

Chat Tools
theFox

chat commands that people might need

Smart Chat
Clyde

A new, lightweight, simple and modular Chatsystem

Minetest Email
MrFreeman

Adds email style inboxes

DTools
Logikí

this gives tools for developers

Towny
livphi

Town based protection system

inventory see mod
soeren

Displays inventories of other players and allows editing with privilege.

Chat3
octacian

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

Shortcut
Derevio

Adds the ability to set shortcuts to commands.

LocalChat
qPexLegendary

Adds local and global chat

Proximity Chat
GreenXenith

Only hear chat from nearby players.

Copy From Chest
zeronumbers

Adds server command copy-from-chest that copies items from chest at x y z to player.

Heal
angry_hd1

Fully heal yourself using a command!

filter++
rstcxk

censors swears in the player chat using the filter++ liberary

ping
Giga_M

show your ping

InvManager
IlzumiZeminori

Allows to check and remove items from players' inventories

Server Essentials
jolethen

An essential mod for any server

Chat translate
ksandr

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

Blacklist Name
ANAND

Blacklist offensive names, forcing players to join with different names.

elysium
Giga_M

add a elysium command

Telegram
neko259

Integration with telegram messenger chat

Color my items!
Sofik5800

Color your items with one command: Color me!

Pos Marker
1F616EMO

Add markers that can set and get via chatcommand.