New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Statues
Groin

Adds statues of various sizes to the game.

Compactor
alerikaisattera

A Technic based machine for converting certain items into more compact forms

ObsidianStuff
SoloSniper

Adds obsidian tools and armour

Decraft
iarbat

De-craft items with the decrafting workbench.

My Slopes
Don

MySlopes

Balrog Sword
DragonWrangler

adds a balrog sword

Anarglass
VerdiSchubert

Some kinds of glass nodes

Aqua World
NovaX

Generate an underwater world with deep water, sand, and sandstone.

computer
Giga_M

Add a computer with basic functions.

Node houses
MatyasP

Node houses is a mod by MatyasP that adds one-node block of houses, for crafting using items from mode default.

Sun Flowers
Hybrid Dog

This mod generates flowers which close their heads at night.

Knapping Mechanics
csirolli

Adds knapping mechanics API inspired by Vintage story

Startest
Robot10&Scheletor

This mod adds several space stuff to the game.

Cloudcraft
EmptyStar

Adds tangible clouds and cloud-related items to Luanti worlds

Mesecons Stealthnode
Clyde

Register your own Ghoststones.

My Hole In The Wall
Don

Decorative blocks for around gardens and more

Weedstone Random Mod Thing
chaosomnium

Originally meant to be a simple electronics type mod inspired by redstones, I messed around with the code after getting bored and got this weird mod, and now it's this thing. Enjoy I guess?

Locked Travelnet
Sokomine

Protect travelnet stations with locks and/or passwords

Little Lake
Bas080

Spawns little lakes both in caves and mountains

Ancient Ice Stuff
Robot10&Scheletor

Adds a new powerful ore to the game

Haunted's Foods
Haunted

More types of meals and ingredients.

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

BitChange
Krock

Money items for your world. You can mine bitcoins. Sort of.

musketeers & rifles
Raymoo Hakooray

one shot, one down

More Fuels
pl608

Adds a few new fuels for use in furnaces such as gasoline and petrolium

BingFeng Maidroid
XYChen

An improved version of Maidroid, providing maid robots.

Fake Player
MineWorlds

this adds special fake players with heavy customizable features, needs fake_master priv to use commands and "the controller"

Technic Recipes
alerikaisattera

Extra recipes for processing various items with Technic machines

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

Ocular Networks
mt-mods

Draw power from the world, and use it to power machines and tools.

Engravings
Taren

Adds multiple engraved blocks and benches to make them.

Minetest Game Random Content
AirplaneMan

Adds random content with no particular theme

Prefab Redo
cheapie

Cheapie's version of Dan's old prefab mod, which adds pre-fabricated concrete elements: catwalks, benches, ladders, railings...

Tile Floors
ClassicAdam

Various colors of tile flooring in 16px and 256px res

My Bricks
Don

Machine to make bricks out of common material

Moss Carpets
alerikaisattera

Moss carpets based on Ethereal mosses

3D Armor Mobile
LandarVargan

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

Meseconometer
DS

Device to meassure time of mesecon signals in globalsteps

Pillars
citorva

Add a lot of pillars for fun.