Invisible Blocks
Truemmerer

Add invisible Blocks

Cave explorer tool
SFENCE

Cave explorer tool to use acoustic signals for undergound exploring.

Hoverboard
mazes

Hoverboards

Chat History
sorcerykid

Interactive chat history viewer with a variety of message filtering options

Engravings
Taren

Adds multiple engraved blocks and benches to make them.

daymachine
niwla23

Make day by using one mese crystal!

Frames
opfromthestart

Frames from Technic since it was removed.

Auctions
Athozus

Adds ingame auctions

My Rocks
Don

Places rocks around the world

Hardcorebrix
drkwv

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

nodeu
ulla

metal blocks stair railing coloured

My Mulch
Don

Turns leaves and other items to mulch blocks

3D Spikes
BryanGruik15

Adds spikes to the game.

Atium
GenesisMT

A strange a ore with tools.

Plasterwork
Sokomine

Add colored plaster coats to nodes

Scripted World Editor
Neuromancer

API that allows you pass in scripting tables to fill a series of shapes of different sizes with different nodes

Mtg Craft Reverser
Hugues Ross

Makes crafting recipes in Minetest Game reversible

Discrete Player API
Hypernoot

A library for games which attaches players to node grid

Claymore
Giga_M

adds a powerful sword capable of deforming the ground

New Economy
Aa1a

Add 3 coins in game ( gold , steel , diamond )

Roadway
X17

Adds simple roads in 4 sizes.

Shield Tome
DarkXWolf17

Magic Shield Tome.

Super Axe
adrian-castravete

An automatically wood chopping axe.

Renewable Fireflies
mecha_moonboy

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

Saphire
Ryft77

Adds saphire stuff

Respawn Kit
Deadlock

Adds a "respawn-kit"-Chest. A Copy of everything you put in it, will be given to you on respawn. (With configurable Black/White-List)

Mycorners
Don

Put decorative corners on blocks.

Scraps
Goops

Allows to recycle metal tools

trudged
Bas080

A simple mod that converts walked-over soil nodes to dirt.

Underground Survival Lighting
Arkatron

If you like underground light in survival, use this mod, it can help that.

Spawn redo
cathaya7d4

Drop-in replacement for default/spawn for more third-party biomes

Colored Stone
Clyde

provides colored stones.

Advanced Keys
Lejo

Replaces the Skeleton Key with one with multiple chests.

Openion Yeast
Wovado

Adds Yeast and a Yeast Barrel

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

Offline Phantoms
Kimapr

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

Better Fences (1F616EMO Redo)
1F616EMO

Allow fences to connect to all nodes

Fakery
iarbat

Adds counterfeit diamonds and other fake precious materials.

More Coral
Nathan.S

Adds coral in more colors.

Time Stone
j45

This mod adds 2 single use stones, a day stone and a night stone, the day stone turns time to sunrise and the night stone turns time to sunset.