Quest Framework
TeTpaAka

Simple framework to define quests.

Cid Music Player
ekl

Plays music

Minetest Email
MrFreeman

Adds email style inboxes

Markdown Poster
Thresher

Adds a markdown variant to the signs mod (from display modpack)

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.

3D Spikes
BryanGruik15

Adds spikes to the game.

superspeed
GigaByte

change the player's speed x10

My Torches
Don

Changes default torches to ones that burn out and cause damage

Nyan Cat Redo
Blocky Player

nyan lazer, nyan soda and sugar. What's not to love?

Watering Can
Wuzzy

A watering can to wetten soil.

Error Mail
1F616EMO

Send mail to the admin with error traceback

Bedrock Markup Language
sorcerykid

Bedrock Markup Language is an extensible markup language and API for formspecs.

Sticks Stones
MikeRedwood

Makes Sticks from leaves and scatters small stones

Direction Compass
APercy

Adds a compass

Wind Charges
Tomlaus

A mod that adds wind charges as a fun item.

Valentine's day
Luke

Adds valentine cards

Weapons API
Stix

Adds an API to easily register custom weapons

Exile Snow Fun
TPH

Adds throwable snowballs to Exile

Obdy
Sires

Adds some pretty OP tools :)

Roulette Table
LiyahMackenzie

Adds a roulette minigame with a table block, to gamble away your possessions.

Strong Wooden Pickaxe
mufigilang

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

Spawn Builder
Wuzzy

Generates a stone platform below the world origin or static spawn point.

Autobox
Just_Visiting

Auto Collision/Selection Loading Boxes

Obelisk - Obelisk.jar [Inspired by lizardmeninc Obelisk]
colon

shhh it's here.

Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

Item Limit
LMD

Limits the amount of items of certain types in player inventories

golden lava
GigaByte

add golden lava

FS51
Luke

Compatibility layer for formspecs

tripwire
Neocraft1293

a mod to add tripwire

Think Block
Thebinoman

This block can think random thoughts.

Placeholder
BuckarooBanzai

placeholder node / a better unknown node

NodeCore Chess
Warr1024

Chess pieces for NodeCore.

action queues
fluxionary

provides an API for queuing things for batch processing w/ various ways to specify the batch "size".

Nodecore Stucco
Avicennia_g

Adds a few decorative building nodes to Nodecore through simple and crude masonry.

Player Settings
1F616EMO

Player-specific settings

Angle Grinder
Warr1024

Snap camera to discrete angles

Hoverboard
mazes

Hoverboards

flinv
Luke

API to add new inventory tabs which work across different inventory mods

For Sale Sign for Unified Money
1F616EMO

Area Exchange with Unified Money System

Inventory Overflow
monk

If main is full, place nodes into the next available inventory