Glostone Building Blocks
Wovado

Adds basic glostone-based building materials

Oil lamps
ademant

Create oillamps with oil from leaves (basic_materials) or create oil with seeds.

Beamer
Clyde

Beam items or nodes from your inventory to the inventory of your friend.

TurtleMiner
BirgitLachner

A Mod to let Kids start programming with a turtle that can move around in the world, and dig and build what the user wants.

Uncrafter
JoeEnderman

Adds an uncrafting table

Coins
Clyde

Adds 3 kind of Coins to your game

My Rocks
Don

Places rocks around the world

Renewable Fireflies
mecha_moonboy

Registers an ABM on some ground blocks that spawn fireflies if certain criteria are met.

Library Mount
Panquesito7

API Framework for mounting objects.

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

Roadway
X17

Adds simple roads in 4 sizes.

Spectator Mode
jp

Allows you to watch other players in their 3rd person view.

nodeu
ulla

metal blocks stair railing coloured

Dyed Water
erov

Dyed water for mtg

Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

Technic Transporter
Fruitsnack

Mod that adds a technic-powered HV transporter

S Potions
Stakbox

Adds a simple potion brewing system for MTG. Includes API for adding custom potions.

Movement Essentials
Daniel

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

rtp
bookgirl

Random teleport commands (/rtp and /wild)

Minercantile
Mathias

Economy featuring a primitive supply and demand system for exchanging goods.

Tinted Glass
1F616EMO

Colored glass

Online Shopping
LC Creations

Allows players to buy and trade anywhere.

Realm Lamp
GenesisMT

A rainbow gradient block for decoration and with differents speeds.

Surprise Blocks
Wuzzy

Randomly spawns surprise blocks closely about ground level.

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

An API for automatically registering recipes, nodes and ore generation.

Quartz New
alerikaisattera

Quartz and quartz glass building blocks

Offline Phantoms
Kimapr

Players leave "phantoms" when leaving; other players can take items from those

Death Coords
Niden

Show Death Coordinates

Giftbox2
Wuzzy

Gift boxes that players can give to other who will then receive random items

Colored Stone
Clyde

provides colored stones.

Ores Expansion
Groin

Adds a new ore ( for now ) called "Rozeemerald".

Tac Nayn
GreenXenith

Adds Nyan Cat's evil twin, Tac Nayn (and a gray-scale rainbow).

Unstable Caves
M BLOC

Some stones may cave in if punched, making underground expeditions more risky.

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Technic Recycle
DumbDave961

Recycling recipes for Technic items.

CSperson's Simple Pebbles
CSperson

A very simple mod that adds natural detritus. Doesn't do much besides that.

Hardcorebrix
drkwv

Adds durable building materials that won't break on a first dig.

New Biomes
Arkatron

If you like underground biomes, this thing is for you.

morebiomes
mzs.112000

A simple mod adding a few biomes to Minetest Game

My Parkour
Don

Nodes for making a parkour track