DogBlocks
Hybrid Dog

Cute, adorable dog nodes

Climbable Trapdoors
ZenonSeth

Makes the wood and steel trapdoors climbable

Know Where You Die
1F616EMO

Send a message include death pos to you when you die

Custom Falling Nodes
TenPlus1

Tweak falling blocks to add custom controls

Lua Wand
Zemtzov7

Tool with programmable on_use

Better Commands
ThePython10110

Adds commands and syntax from a certain other voxel game

Sounds
AntumDeluge

A set of free sounds & API.

More Pickaxes
Koda_

Adds additional pickaxes to the game

Node Touch Action
Neuromancer

Pass in a node name and a function, and every time a player touches that node, the function happens

Bricks Plus
X17

Adds different brick patterns

Inspector
sofar

An in-game tool to inspect node parameters and metadata.

More mclx_fences
dougsouza26

Adds fences and fence gates with bark textures for logs and hyphae.

Morebricks
CalebJ

Adds an assortment of new bricks to build with.

TPH's Spyglass
TPH

Provides a Spyglass for zooming in and out (if RMB is pressed)

Meseport
ForbiddenJ

Allows for the creation of Meseportation systems.

Etherium Stuff
alerikaisattera

Decorative stuff using ethereal's etherium dust

Grass Instabreak
MrBertram

Makes certain flora blocks instantly breakable by hand.

Raw Ore Blocks
Silver Sandstone

Adds block forms of metal lumps.

X-fangs
Octomax2011

adds suits for speed and look

Chess
LissoBone

Chess. No rules as of now, only pieces and a board.

Sparking Wand Mod
Olaf

Craft a wand with which you can cast a lightning spell. Great for discovering caves.

Tool Enhancement
archfan7411

Allows players to enhance their tools through mese infusion

Missions
BuckarooBanzai

Adds blocks to create missions with rewards, timeout and penalties.

Multiplant
Firefall

Grow Multiplants and get a random seed or flower!

Infinity Gauntlet
Gcbarden

Adds The Infinity Gauntlet

MineClone Stackpotions
ApolloX

Stackable Potions

Dirtcraft
dayer4b

Adds automatic crafting recipes for making most kinds of dirt

Trails
X5Dragonfire

Allows you to make paths in grass with ground roller

ASCII Art Schematics
Warr1024

Manage Minetest schematics as ASCII art.

Auto-Trek
Warr1024

Automatic long-distance walking via assisted auto-forward

Watershed
paramat

A river / mountain range mapgen

Jukeloopbox
ulla

A simple jukebox that can be used for small looped tracks, or simply to listen to music

Quarry Mechanics
kestral

Adds quarry mechanics to stone nodes.

Cellular Automata
bobomb

For creating 1D, 2D (including Conway's Game of Life) and 3D cellular automata.

Sneak Drop
Flay Krunegan

Pick up all items on the ground in a 3 block radius by holding sneak.

Tfl S7 Stock Generic Livery Pack
Marnack

This mod provides generic liveries for use with the TfL S7 Stock Modpack.

Extended Placement
gamefreq0

Allows placing nodes below/behind the closest node to where you are looking, when you're looking at the air where said node would go.

HUD Analogic Clock
APercy

Adds an analogic clock to hud

No Map
LissoBone

Reject tradition, embrace modernity. For those tired of default MTG maps. Crafting recipes for TechAge hackers available.

Internet Relay Chat
kaeza

Connect your server to an IRC channel, and install irc_commands to control the server from IRC