Library Mount
Panquesito7

API Framework for mounting objects.

Maple tree
Duvalon

Adds a maple tree placed during world generation.

Dirt Tunneler
Neuromancer

Makes dirt deeper and you can tunnel through it just by walking through it. Press spacebar/shift to tunnel upward/downward with auto placed ladders.

Decraft
iarbat

De-craft items with the decrafting workbench.

Uncrafter
JoeEnderman

Adds an uncrafting table

Brick Walls
philipmi

Adds brick walls from different types of bricks.

Dragonbone Stuff
Robot10&Scheletor

Adds dragonbone set

More Fuels
pl608

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

Secret
artur99

Adds hidden and secret nodes.

faction items
GigaByte

add some items to be used as prizes for special events or player achievements

daymachine
niwla23

Make day by using one mese crystal!

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

Fareboxes and Faregates
1F616EMO

Signal-emitting fareboxes and faregates

Scripted World Editor
Neuromancer

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

Rock Piles
Neuromancer

Adds rock piles which generate randomly on the surface and in caves

Mesecon Node
1F616EMO

Make all node have mesecon_wire version

Atriumic
Firekiller

Adds a new biome, new blocks, new armor and more.

Frames
opfromthestart

Frames from Technic since it was removed.

Tac Nayn
GreenXenith

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

Parcdeco
Floatland

adds grass-like nodes that have flowers

Drawstruct
Xenon

Draw or generate random structures

Snow Cones
GreenXenith

Some simple flavored snow cones.

Elepower Fixes
Bob64

This aims to fix some of the problems with the elepower modpack.

Stardust
alerikaisattera

A mineral found at high altitude and items made with it

CSperson's Simple Pebbles
CSperson

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

Phonics Library
Neuromancer

Provides a library for creating Phonics (Learn how to read) mods in different languages.

Useful Contraptions
theFox

Some useful contraptions / machines.

Giftbox2
Wuzzy

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

Redo of Minetest (Game) Doors
TPH

Utilizes my Doors API Redo to better simplify and work the doors

Item Holders
Jose_ManuelS18

Adds 'Item Holders', blocks that hold your items in display, also provides a API.

Simple Dice
farfadet46

Simple dice for little games ;)

Underground Survival Lighting
Arkatron

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

Grow Dry Grass
Silver Sandstone

Makes dry grass spread on savanna dirt.

Colourful Ladders
Itz-Noah

40 colourful wooden ladders

itemshelf (Fork)
nac

Generic item shelf with 3D items on display

Plasterwork
Sokomine

Add colored plaster coats to nodes

Obdy
Sires

Adds some pretty OP tools :)

New pickaxes
Arkatron

Adds new pickaxes

LWColorable
loosewheel

Various colorable decorative blocks.

Shifter Tool
jwmhjwmh

Adds a tool for moving nodes as pistons would