Roadway
X17

Adds simple roads in 4 sizes.

Renewable Fireflies
mecha_moonboy

Registers an ABM on some ground blocks that spawn fireflies if certain criteria are met.

World Borders
argyle

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

3D Armor Mobile
LandarVargan

Adds a command to bring up a formspec that allows mobile users to put on armor

Hero Mines
Neuromancer

Can you rescue the miner trapped at the bottom of the mine? Creates mines that are used as levels for the game H.E.R.O.

Purple ore
X-DE

Adds new purple ore to floating islands and caves from height 200 to 31000.

Lava Particles
karlexceed

Adds some spark particles to lava pools

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)

Item exchange shop
Krock

Provides a simple exchange shop (currency compatible)

Super Axe
adrian-castravete

An automatically wood chopping axe.

Colored Leaves
Otto

Adds several colors of leaves

Protector Redux
sorcerykid

An efficient and flexible node-based protection scheme for multiplayer worlds

idiamond
soeren

With this new feature, you can press ordinary diamonds into industrial diamonds, effectively doubling your diamond count and maximizing your resources.

Coins
Clyde

Adds 3 kind of Coins to your game

Hbdrunk
UnchainedDevelopment

Adds intoxication effects and HUD bar to display intoxication level.

LDF Race And Parkour
lister

Race/Parkour Timers and Record Tables

Scripted World Editor
Neuromancer

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

Hexagonal
GreenXenith

Proof of concept for hexagonal nodes

Cave explorer tool
SFENCE

Cave explorer tool to use acoustic signals for undergound exploring.

GetName
kevins

Adds an API and tool to generate random names for NPCs, mobs, and places.

Scraps
Goops

Allows to recycle metal tools

Ocular Networks
mt-mods

Draw power from the world, and use it to power machines and tools.

Additional Gravel
Hordeking

Adds overgrown gravel, similar to mossy cobblestone.

Fake Liquid
SkyBuilder1717

Adds a fake liquids

Technic Transporter
Fruitsnack

Mod that adds a technic-powered HV transporter

Poly Decor
mt-mods

My spin on decorative stuff.

Sticks Stones
MikeRedwood

Makes Sticks from leaves and scatters small stones

TNTTag
debiankaios

A player is holding TNT which is about to explode; they must tag other players to get rid of it

Wheitestone
soeren

deco whitestone

TurtleMiner
BirgitLachner

A Mod to let Kids start programming with a turtle that can move around in the world, and dig and build what the user wants.

Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

Math blocks
Giulio

Adds decorative math blocks to help in teaching

Spawn redo
cathaya7d4

Drop-in replacement for default/spawn for more third-party biomes

Tdl`s Staffs
tdldaboi

Adds elemental staves to the game.

Area-Locked Chests
1F616EMO

Locked chest that check protections

Waste
Jolesh

Adds Waste and ways to recycle it into useful resources

Spectator Mode
jp

Allows you to watch other players in their 3rd person view.

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

Claymore
Giga_M

adds a powerful sword capable of deforming the ground

Beamer
Clyde

Beam items or nodes from your inventory to the inventory of your friend.