Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

Spectator Mode
jp

A mod for Minetest allowing you to watch other players in their 3rd person view.

Minercantile
Mathias

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

Tac Nayn
GreenXenith

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

My Mulch
Don

Turns leaves and other items to mulch blocks

Minebase Core
ThatCommand

Adds APIs and new dynamic functionalities.

Safe Chest
Atlante

Add a safe chest with secret password

Compactor
alerikaisattera

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

Alternate Gravel
soeren

the mod adds 32x32 pixels 2x alternative gravel

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

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

Batch Screwdriver
niwla23

With this you can rotate all nodes in a row at once

New pickaxes
Arkatron

Adds new pickaxes

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Strong Wooden Pickaxe
mufigilang

Add strong wooden pickaxe that destroy stone as fast as diamond pickaxe

Slot Machine Mini-games
mt-mods

Provides an "engine" to drive simple slot machines (includes two). Spins reels, takes in/pays out in Minegeld (Dan's currency mod), etc.

blueberry_juice
MR_breaddz

blueberry juice

Coins
Clyde

Adds 3 kind of Coins to your game

Nyancat's heaven (reworked)
Hybrid Dog

Adds a nyanland in the sky

Fareboxes and Faregates
1F616EMO

Signal-emitting fareboxes and faregates

My Regen Chest
Don

Spawns items when opened and will not again for determined amount of time

MathPlot
kyleclaassen

A tool for constructing mathematical curves/surfaces/solids.

Colored Stone
Clyde

provides colored stones.

Underground Survival Lighting
Arkatron

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

Drawstruct
Xenon

Draw or generate random structures

Grimoire
monk

Override tool functionality during runtime

Purple ore
X-DE

Adds new purple ore to floating islands and caves from height 200 to 31000.

Geodesy
SFENCE

Geodesy tools and items

Online Shopping
LC Creations

Allows players to buy and trade anywhere.

Area-Locked Chests
1F616EMO

Locked chest that check protections

Macro Crafting Manager
sorcerykid

Macro Crafting Manager provides a streamlined drag-and-drop interface for dividing and arranging item stacks within the craft-grid

GetName
kevins

Adds an API and tool to generate random names for NPCs, mobs, and places.

Bounty
csirolli

Place bounties on players

Fakery
iarbat

Adds counterfeit diamonds and other fake precious materials.

Library Mount
Panquesito7

API Framework for mounting objects.

Kill History
LMD

Adds a kill history

LWComponents Spawners
mt-mods

Register spawners for lwcomponents.

World Borders
argyle

Add impenetrable barriers to the sides and bottom of the world.

Randomized Map-specific Ores
Piezo_

Adds two randomly created ores to each world with varying properties depending on the world's seed

Darks
_Xenon

Adds dark stuff

Grow Dry Grass
Silver Sandstone

Makes dry grass spread on savanna dirt.