A Cute Flower
lml55

Adds an innocent flower with some head armor

OTP
mt-mods

(T)OTP Verification for player accounts

YAML Config File Library
snowyu

Load or Save YAML config file

Light Tool
Extex

Adds a tool and api that creates beams of light

Inotify
ApolloX

A notification tool for players in-game.

Pattern Blocks/festive Blocks
Eternal_plasma

Adds New Bright Blocks

Pencil Redo
1F616EMO

Tool to edit infotext of nodes

Safe Chest
Atlante

Add a safe chest with secret password

Plastic Box
Starbeamrainbowlabs

Adds a recolourable plastic box. Fork of @cheapie's version with improvements.

Unlit Music
nurd3

Official OST for Unlit

Fragments
Amaz

A mapgen with a goal, with things needed to advance to the next level.

Simple Dice
farfadet46

Simple dice for little games ;)

Interact
Amaz

A mod that gives the interact priv to players who want it and who have agreed to the rules.

Edutest Chatcommands
zeuner

Provides chatcommands for the educational staff.

Copy From Chest
zeronumbers

Adds server command copy-from-chest that copies items from chest at x y z to player.

Discontroll (disconnect troll)
Sofik5800

Troll players with command (chat message .dct). Select troll name and troll type in discontroll menu.

Math blocks
Giulio

Adds decorative math blocks to help in teaching

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.

Heal
angry_hd1

Fully heal yourself using a command!

Aratox Anticheat
zanderdev

Severside Anticheat. Remove cheaters from your server automatically.

NC Reactor Meltdown
Winter94

A new challenge, with serious implications...

Invisible Blocks
Truemmerer

Add invisible Blocks

NodeCore PumMINE
Winter94

Mineable pumice

filter++
rstcxk

censors swears in the player chat using the filter++ liberary

HL Marker
Flay Krunegan

Teleportation Marker is a unique item that allows players to set and execute teleportation to marked positions with customizable delay times.

New pickaxes
Arkatron

Adds new pickaxes

Fly-B-Gone!
Hugues Ross

Hides butterflies/fireflies

Timekeeper
sorcerykid

Timekeeper acts as a centralized dispatcher for all time-sensitive routines

SmartFS
rubenwardy

A library to allow mods to make Formspecs, a form of GUI, easily.

Skyhell Together
Kimapr

Put all skyhell players on one shared island (NodeCore)

AntiSpoof
1F616EMO

Preventing confusable usernames

Stasis
Luke

Allows players to be put in stasis.

Frames
opfromthestart

Frames from Technic since it was removed.

Virt
frogTheSecond

A library for (qemu) virtual machines

AFK Indicator
1F616EMO

API to check player AFK status

Item name translation lookup
Y. Wang

Adds a chatcommand to look up the name of an item in other languages.

liquid restriction
wsor4035

restricts liquid use to a privilege

Valentine's day
Luke

Adds valentine cards

ping
GigaByte

show your ping