Mocap
mrGoodWolf

Let's players record themselves and playback the recording (NOT VIDEO RECORDING)

Function Delayer
Hybrid Dog

Allows executing functions after a delay to reduce possible lag (EDD scheduler?)

Weapons API
Stix

Adds an API to easily register custom weapons

Upgrades
niwla23

Adds effects to players for a short time

Rebreather
ApolloX

Breath underwater with this item in hand

Waste
Jolesh

Adds Waste and ways to recycle it into useful resources

Node roads
MatyasP

Add much of one-node roads and crossroads, road bridges and slopes

Dais Ex Machina
Warr1024

An other-worldly platform to preserve some of your stuff across map resets for NodeCore

Crafty Arts
AirplaneMan

Arts and crafts supplies

Sausages
1F616EMO

Sausages! Yum!

obsidian
Giga_M

more uses for obsidian

Trading
ROllerozxa

Trade items with other players.

Roadway
X17

Adds simple roads in 4 sizes.

NodeCore Additional Content
Winter94

Ask and Ye Shall Recieve (Multiple Small Additions Requested in NC Documentation )

Surprise Blocks
Wuzzy

Randomly spawns surprise blocks closely about ground level.

Example Lua mapgen
ROllerozxa

A basic example for writing custom Lua mapgen using Perlin noise.

Advanced Rangefinder
sorcerykid

Extends the API with search capabilities for entities

Sling
tacotexmex

Sling enables item stack and single item throwing of any item.

L-System Tree Utility
Wuzzy

A form to easily spawn L-system trees, aimed at mod developers.

World Borders
argyle

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

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)

My Wood Slopes
Don

Make slopes with wood blocks.

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.

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

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

Geodesy
SFENCE

Geodesy tools and items

timehud
bookgirl

Minimal HUD timer API

Sneeker
AntumDeluge

An explosive nuisance.

NodeCore Bugs
Winter94

Adds A Variety Of Bugs To NodeCore

Mine
SkyBuilder1717

Adds many types of mines

My Stacks
Don

Changes the max number of items in each stack

Show bones
ExeterDad

Saves bones positions to a file

afk_api
fluxionary

an API for registering events which trigger when a player goes AFK or comes back from AFK.

Players Effects
SFENCE

Provides predefined attribute effects for players ncluding movement, vision, and brain concussion effects. Apply logic is not included.

Teleport Anchor
1F616EMO

Fixed teleport destinations for survival players or adventure map makers

Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

Cthulhu eye boss
Giga_M

Cthulhu eye boss adds

Tune JIT
rudzik8

Tunes LuaJIT parameters to improve server performance by preventing constant GC

This should be make sense!
1F616EMO

Adds missing crafting recipes that should exist

Toggle Privs
bugbug11

Allows players to enable and disable privileges granted to them

PvP Control
mike.monkeybiter

Allow players to set their own ability to hurt or be hurt in PvP, by chat command or by pressure pads. Nametag colour changes to reflect status.