Math blocks
Giulio

Adds decorative math blocks to help in teaching

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

My Mulch
Don

Turns leaves and other items to mulch blocks

Prop Hunt Modpack
Jo5629_

Transform into nodes and with a minigame.

My Torches HD
Don

Changes default torches to ones that burn out and cause damage

TNTTag
debiankaios

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

Mortar
suhaib

Adds a mortar cannon

Tac Nayn
GreenXenith

Adds Nyan Cat's evil twin, Tac Nayn (and a gray-scale rainbow).

Strong Wooden Pickaxe
mufigilang

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

Aqua World
NovaX

Generate an underwater world with deep water, sand, and sandstone.

Super Axe
adrian-castravete

An automatically wood chopping axe.

Cottonseed Oil Fertilizer
1F616EMO

Powerful fertilizer from cotton seed

Stardust
alerikaisattera

A mineral found at high altitude and items made with it

Death Coords
Niden

Show Death Coordinates

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

Kits
Pyu

An API for creating kits

Tdl`s Staffs
tdldaboi

Adds elemental staves to the game.

Unstable Caves
M BLOC

Some stones may cave in if punched, making underground expeditions more risky.

Batmod
Don

Fun mod that is about bats

Hardcorebrix
drkwv

Adds durable building materials that won't break on a first dig.

Invisible Blocks
Truemmerer

Add invisible 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.

Ubertool Mod
HartRend

Provides a combination pick, shovel, and axe tool capable of extreme function. Tool is also illuminated.

Finaluxi
Sere Motsatt

A example for aore API.

Color Blocks
mt-mods

Contains colored building blocks.

Item exchange shop
Krock

Provides a simple exchange shop (currency compatible)

Explosion proof obsidian
Miner34

Adds an explosion proof obsidian.

Ben's Gear
MissingTextureMan101

Attach tool parts to create new tools and add a whole new layer of strategy to your tool crafting!

Server Essentials
jolethen

An essential mod for any server

Waste
Jolesh

Adds Waste and ways to recycle it into useful resources

Frames
opfromthestart

Frames from Technic since it was removed.

End Him Rightly
ekl

Unscrewable and throwable pommel

MathPlot
kyleclaassen

A tool for constructing mathematical curves/surfaces/solids.

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

Throwable Snowball
ComputeGraphics

Adds a throwable Snowball

New pickaxes
Arkatron

Adds new pickaxes

Alternate Gravel
soeren

the mod adds 32x32 pixels 2x alternative gravel

Splink Storage
Yoreni

Adds items that can store massive amounts of other items in your inventory

Obdy
Sires

Adds some pretty OP tools :)