Smoke Signals
Just_Visiting

Signal your friends, or warn your enemies!

Mylandscaping
Nathan.S

Lets you put up decorative walls around your gardens, and make pretty hardscapes.

Tool Enhancement
archfan7411

Allows players to enhance their tools through mese infusion

Teleport Request
Traxie21

Allows players to send a request to other players to teleport to them. Includes many more teleporting features.

Guinea pig
DrPlamsa

Adds guinea pigs.

Why?
ThePython10110

Adds random things to MTG and MCL.

Milk potion
bgstack15

Milk potion for Mineclonia

Just a Mountain
Deadlock

Adds a Mountain (4000x2000 blocks large, 1000 blocks tall)during worldgen around a configurable position

Progressive Eating Visuals
TPH

Shows visual changes with the progressive consumption of food using Dynamic Input-Held Eating alongside supported games

Candy
Kostivar

Adds candy which you can make from candy ores.

Fancy Place
DragonWrangler

Better block placement system that allows you to place blocks even when not pointing at the connecting face.

NodeCore Skyhell
Kimapr

The ultimate skyblock challenge

vexcazer
AiTechEye

Ultimate build+mine & admin tool

Trails
X5Dragonfire

Allows you to make paths in grass with ground roller

Zinc
alerikaisattera

Zinc metal, used for making brass

Fire Master
Flay Krunegan

Fire Master is a powerful weapon that can shoot fire

CCompass
bell07

Adds a calibratable compass to the minetest

Hook (survival tools)
AiTechEye

Survive & climbing tools

Advanced Biome Decoration API
EmptyStar

An API for creating advanced, complex biome decorations

Zero-Effort Custom Minerals
Piezo_

A tool for registering entire materials, complete with ore generation, tool-sets and automatically generated sprites with almost no effort required

Fbt WiTT
Forburnt

WAILA-like mod (a rewrite of WiTT by MightyAlex200)

pilzmod
Phii

a spreading mushroom biome which you can spawn into the world, with its own monsters and a boss you need to slay to stop the biome's growth. Best played with bow & armor mod and after reading manual.

More Pickaxes
Koda_

Adds additional pickaxes to the game

Alien Material
debiankaios

Adds new blocks, items, and tools from aliens. A new time begins.

Cones: Traffic and Training Cones
ClassicAdam

Cones. Various use traffic cones and training cones. 3 sizes, 10 colors, 30 cones in total.

Slats
v-rob

Adds decorative slats that have a lot of uses.

Power generators
SFENCE

Add power generators based on appliances API.

Scripulous Fingore
Ludus

You cannot ignore me forever, Sam.

Multitools
ChimneySwift

Adds a series of multi-purpose tools to Minetest

void grenade
GigaByte

add an void grenade

Better Commands
ThePython10110

Adds commands and syntax from a certain other voxel game. Not broken anymore (hopefully)

Item Repair
ApolloX

Repair many items with ease.

Studs
erle

Adds studs on top of many nodes that are not ground content. This makes the decorated nodes look like interlocking bricks, similar to LEGO.

Temperature Survive
AiTechEye

Makes you feel temperatures

Ancient Fertilizer
Daniel

Adds ancient fertilizer, sourced from ancient stone in the underground, useful for farming flowers if you need dye for colored nodes, complements bonemeal.

Coconut Trees
AwesomeDragon97

Adds coconut trees that appear on beaches

Climbable Trapdoors
ZenonSeth

Makes the wood and steel trapdoors climbable

Sounds
AntumDeluge

A set of free sounds & API.

Karst Caverns
MisterE

A cavern generator that creates complex karst cavern systems, with rooms interconnected by multilevel tunnels. Experience the joy of caving.

Lookup Tool
Wuzzy

Adds a tool which shows help entries about almost anything which it punches.