Loose Rocks
eduardomezencio

Adds loose rocks which generate randomly on the surface.

Living Grass
karlexceed

Adds a simple lifecycle to grass

Trails
X5Dragonfire

Allows you to make paths in grass with ground roller

Reinforced Diamond Tools
ImAlreadyHere

A sword and a pickaxe that are really strong and can be crafted with diamond blocks and sticks.

Tomb Stones
Nathan.S

Adds many shapes and styles of tombstones.

Chains
X17

Adds chains to climb or decorate

Clay Bricks
AwesomeDragon97

Adds colorful clay bricks.

Random Cool
pl608

Adds random ores on lava cool

Aqua Farming
Clyde

Farming under Water, now it's possible.

blackhole containment box
Soundwavez

cool swirvy gravitational blackhole boxes, that can be used to "ahnialate" enemy bases, or for "deforestation" aah i love abms! (extra dramatic!))

Multiplant
Firefall

Grow Multiplants and get a random seed or flower!

Rings
Goops

Add rings with temporary player effects

Basic Grenades
LandarVargan

Adds some basic grenades using the grenades API

Utilities for Underch - extension pack
Hypernoot

Extend the Underground Challenge by miscelaneous utilities and change some recipes

potal launcher
Soundwavez

Potal Launcher

Lava Ore Gen
Coder12

Makes the lava turn stone into ore over time.

Multitools
ChimneySwift

Adds a series of multi-purpose tools

Slats
v-rob

Adds decorative slats that have a lot of uses.

Zinc
alerikaisattera

Zinc metal, used for making brass

Digiline Stats
Darin755

A mod that adds a few digiline blocks to get server information

Bonified
Shqug

New features related to the bones you get from dead players in MTG.

Jukeloopbox
ulla

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

Metallicum
Ludus

The power of Titanium!

Worldedge
Don

Teleports the player to the other side of the world when they reach the edge.

visible health bar
Giga_M

adds a visible health bar above the player

Watershed
paramat

A river / mountain range mapgen

void grenade
Giga_M

add an void grenade

HUD Analogic Clock
APercy

Adds an analogic clock to hud

The Grue mod
Majozoe

It is pitch black. You are likely to be eaten by a Grue.

Titanium
Hybrid Dog

Adds titanium which is very strong and lasts for a long time.

Ancient Runes
spixi

Ancient Runes

Bread
Lahusen

Just my favourite bread recipes

challenge
josegamestest

challenges to create route challenges or to train flight

Un-Craft Table
Troodon

Adds an uncraft table

voxelmanip experiments and remade math mandelbox mapgen
chaosomnium

Voxelmanip mapgen with strange layered zone experimental mapgens.

gooey mess reborn
timm

a funny addon that is bigger,better, and a lot more of a goofy time

Craftable Lava Blocks
Darin755

Makes Lava blocks craftable

vexcazer
AiTechEye

Ultimate build+mine & admin tool

Sailing
cakenggt

Live in a tropical paradise where you can sail, mine coconuts, etc.

Missions
BuckarooBanzai

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