Slow Eater
Wuzzy

After eating something, the player must wait for 5 seconds before eating again.

Common Mob Interface
Byakuren

A standard modding interface for interacting with mobs

IRC Commands
ShadowNinja

Control your server from IRC

PM Plus
Lone_Wolf

Colors Private messages in chat and plays a notification sound to players that are messaged

Cement
Linuxdirk

A craftable and “makeable“ cement block.

Physical Currency
admicos

Physical (item) currency

Chat2
lag01

Complements game built-in chat or replaces it.

Multitools
ChimneySwift

Adds a series of multi-purpose tools to Minetest

3D Armor Mobile
Lone_Wolf

Adds a command to bring up a formspec that allows mobile users to put on armor

Mesecons Windows
Wuzzy

Adds 3 glass blocks which change their transparency when supplied with Mesecons power.

Upgrade Packs
Krock

Provides craftable packs to players to increase their health and breath

Item exchange shop
Krock

Provides a simple exchange shop (currency compatible)

Forceload Anchor
rubenwardy

Keeps areas of the map loaded even when players are not online.

Livetools
AiTechEye

Craft tools which have a life of their own - they can fight, dig, or place for you

Mid Measure
ANAND

Quickly get the distance between two nodes and calculate their mid-point

Minetest Wadsprint
drkwv

Sprinting with W, A and D buttons.

Breadcrumbs
FaceDeer

Path marker signs for use when exploring a twisty maze of passages that are all alike.

Armor Monoid
Byakuren

A player_monoids monoid for armor

Colorscreens
DELTA_FORCE

Decorations that can also be used as an actual greenscreen or other colorscreen.

Callbacks API
ANAND

callbacks_api is a framework for registering callbacks if the callback registration function exists, else returns gracefully.

advmarkers
luk3yx

Allows you to create and manage markers/waypoints.

Email
rubenwardy

Adds email style inboxes

Green Screen
Glory!

This mod adds "green screens" to minetest.

mTimer
Linuxdirk

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

Perplayer Gamemode
rubenwardy

Enable or disable creative mode per player. Works well with MTG's creative inventory.

Sounding Line
FaceDeer

A tool for determining the depth of water or the depth of a hole.

Playtime Recorder
Lejo

Use /playtime to get the time you played

Matrix Math Library
entuland

A wrapper around the Lua Matrix library to make it available to other mods

Air Sword
csirolli

The legendary AirSword, in code that is visible (but not recommended to be viewed).

Telegram
neko259

Integration with telegram messenger chat

Abriflame
Shara

Adds coloured fire through use of fire starter tool.

Mesecons Stealthnode
Clyde

Register your own Ghoststones.

Powertools
rubenwardy

Adds tools to make map editing easier.

Fsc
sofar

Easier method for creating better and more secure formspecs.

Temp Privs
ChimneySwift

Overwrites the default grant, grantme and revoke chatcommands to add revoke or grant expiration.

@-Chat
orwell

Adds an alternative Private Message (PM) system

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Abripanes
Shara

Adds faintly glowing coloured glass panes which can be used for stained glass windows or for gentle lighting.

Soft Leaves
Hamlet

Turns (default) leaves to phantom, climbable.

Prometheus
rubenwardy

Adds the ability to upload metrics to prometheus' pushgateway, and provides a "minetest_players" metric by default.