More Snow
Sokomine

snow and wool for stairs - nicer winter landscape and snow-covered roofs

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

Formspec Library
LMD

Formspec string builder & event handler callbacks

Held Item Models & Animations API
TomCon

A powerful API adding in an easy system to integrate full 3d models when holding items.

Node View
gtzi203

Lets you see information about the node/entity you are looking at.

My Torches
Don

Changes default torches to ones that burn out and cause damage

My Eyes
Don

Tells you what you are looking at

Pink Lava
TenPlus1

Adds pink lava to certain depth of map with new mahogany obsidian block

Wildflower Fields
mzs.112000

Adds a wildflower field biome to Minetest Game.

S Battlehammer
Stakbox

Adds a battlehammer weapon with high knockback for MTG (compatible only with Mobs Redo API).

Simple Temperature
Fruitsnack

Temperature as a survival mechanic

Time Travel
Red_King_Cyclops

Adds in a craftable time machine that can be used to time travel to different time periods of Earth's history.

Traverse
shaft

Adds cannons, pipes and tractor beams to allow players and entities to traverse the world in new ways.

Shield Tome
DarkXWolf17

Magic Shield Tome.

Powered Tools
SFENCE

Tools powered by electric/combustion engine. Includes brush cutter and chainsaw.

Sneak Fart
Holly Mae

Fart when sneaking, with sound and puff particles.

Respawn
cronvel

Manage respawn points, interesting places, protection of those places, teleportation, death records and more...

Technic Recycle
DumbDave961

Recycling recipes for Technic items.

LW Creative Tools
mt-mods

Tools for creative mode.

Solar Phases
VeproGames

Simulate variable daytime lengths, including polar day / night

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

LWColorable
mt-mods

Various colorable decorative blocks.

Cozy Lights
SingleDigitIq

Early alpha. Improves the way light sources(torches etc) behave and allows to create huge lights, literal projectors with just a mouse click, light map will be computed for you.

Movement Essentials
Daniel

Adds umbrella for slow fall (hang gliders), consume mese crystal to recall (return to spawn), and throw fragments to teleport.

Jafa Command Assistant
Jafacakes10

This is to assist anyone with commands in game. It adds commands such as /day, /admin and /fly to make your experience easier.

space events
Giga_M

adds the possibility of a meteor falling

itemplate
fluxionary

itemframe that's a plate

Rainbow Source
Shara

Adds coloured water.

autofarmer
beepbopbeepboop

Adds LV-MV-HV Auto Planter and a customizable MV Harvester

Helpful Bot
DragonWrangler

Trolls your enemies, your friends, and yourself.

CaT VoxeLibre Bleach
YCaTGameRT

Add bleach to discolor wool blocks

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

NodeCore Furniture
Winter94

At My Nana's Request: Adds Decorative Furniture To NodeCore

Magma
SuperStarSonic

Adds volcanoes, lava vents and new magma blocks

Balrog Sword
DragonWrangler

adds a balrog sword

bones (redo)
fluxionary

the bones mod from minetest_game, but with updates to make them much more reliable

Zughy32 colored blocks
MisterE

Plain colored blocks from the Zughy 32 palette.

Bow2
shaft

Adds bow and arrows.

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Bloodmagic2
mt-mods

The successor to bloodmagic.