Mobs Redo
TenPlus1

Adds a mob api for mods to add animals or monsters etc.

Mobs Monster
TenPlus1

Adds many types of monster.

Homedecor
VanessaE

Feature-filled home decor modpack.

Mesecons
Jeija

Adds digital circuitry, including wires, buttons, lights, and even programmable controllers.

Mobs Animal
TenPlus1

Adds farm animals.

3D Armor
stu

Visible player armor & wielded items.

Farming Redo
TenPlus1

Adds many plants and food to Minetest

Nether
PilzAdam

Adds a deep underground realm with different mapgen that you can reach with obsidian portals.

Water Life
Gundul

new mobs for your river and sea water

Petz
runs

Very cute mascots: Kittens, puppies, duckies, lambs... Take care of them!

Technic
RealBadAngel

Extensive machinery mod with electricity and ores.

Unified Inventory
RealBadAngel

Replaces the default inventory and adds a number of features, such as a crafting guide

Vehicles
D00Med

A mod that adds an api for cars, planes, and other vehicles.

Basic Materials and items
VanessaE

Provides a small selection of "basic" materials and items that other mods should use when possible -- things like steel bars and chains, wire, plastic strips and sheets, and more.

Simple Skins
TenPlus1

Mod that allows players to set their individual skins.

Mob Horse
TenPlus1

Adds rideable horse

Mobkit
Termos

Entity API

Working villages
theFox

A mod adding villager NPCs that are doing predefined work.

Ranged Weapons
davidthecreator

Adds some guns and throwable weapons.

Crafting Guide
jp

The most comprehensive Crafting Guide for Minetest.

Mobs NPC
TenPlus1

Adds simple NPC and Trader.

X-Decor
jp

A decoration mod meant to be simple and well-featured.

Headanim
Lone_Wolf

Makes player heads follow their look direction

Villages
Sokomine

Explore the world and find villages of diffrent types. Buy a house in a village and settle down.

Nether Mobs
rael5

Add monsters and dragons to your nether world.

Pipeworks
VanessaE

Supplies a complete set of nice, round mesh-based water pipes, boxy item-transport tubes, and devices that work with them.

Advanced Trains
orwell

Adds good-looking, realistic trains with realistic rails.

Bonemeal
TenPlus1

Adds bone and bonemeal giving the ability to quickly grow plants and saplings.

More Blocks
Calinou

Adds various miscellaneous blocks to the game.

Travelnet
Sokomine

Network of teleporter-boxes that allow easy travelling to other boxes on the same network.

More Ores
Calinou

Adds new ore types.

Signs Lib
VanessaE

Adds signs with readable text.

Ethereal NG
TenPlus1

Ethereal mod uses the v7 mapgen to add many new biomes to the world.

SkinsDB
bell07

Custom player skins manager with support for 1.0 and 1.8er skins and inventory skins selector

Wildlife
Termos

Adds some wild animals that interact with each other.

Laptop
GamingAssociation39

Adds laptops/computers to your MT world.

Weather
theFox

A weather mod for minetest.

WorldEdit
sfan5

In-game world editor. Use it to repair griefing, or just create awesome buildings in seconds.

More Trees!
VanessaE

Adds a whole bunch of new types of trees, some bearing fruit or similar, using biome_lib for the placement engine.

Lucky Block
TenPlus1

Adds lucky blocks into the game which may give good, bad, hurtful items when open :)