Nextgen Compass
StarNinjas

A compass item which points towards the world origin.

TerraContent Crimson
AirplaneMan

Introduces the Crimson to your worlds.

obsidian
Giga_M

more uses for obsidian

Saphire
Ryft77

Adds saphire stuff

Brights
_Xenon

Adds bright stuff

Magic Tech
Futuray

It adds technology based magic

Obdy
Sires

Adds some pretty OP tools :)

Super Axe
adrian-castravete

An automatically wood chopping axe.

Multitool Mod
thediamondlego

Adds a new tool that does the job of all the other tools(except hoe and screwdriver). Also has bouble the durability of a diamond tool!

Scraps
Goops

Allows to recycle metal tools

Ruby Tools+
ReinPlayz

Adds ruby ore, ruby tools, and ruby blocks balanced around diamond-tier gameplay.

3D Spikes
Groin

Adds spikes to the game.

Cave explorer tool
SFENCE

Cave explorer tool to use acoustic signals for undergound exploring.

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

Ubertool Mod
HartRend

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

Ben's Gear
MissingTextureMan101

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

Strong Wooden Pickaxe
mufigilang

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

Livetools
AiTechEye

Craft tools which have a life of their own - they can fight, dig, or place for you

Grimoire
monk

Override tool functionality during runtime

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

An API for automatically registering recipes, nodes and ore generation.

Metatool
SX

Provides API to register node metadata tools along with few useful tools

Armor addons
CosyDeer

Additional armors and outfits for 3d armor / Asuna

Floof
Momo

Add BicBiomeCraft inspired biomes, tools, and items.

Banshee
ElCeejo

Adds Banshees, a ghostly mob that haunts pine forests

faction items
Giga_M

add some items to be used as prizes for special events or player achievements

Silver
Jackknife

adds silver ore and tools

Lakemaker Mod
sunnysideup

A TNT block that makes lakes/bodies of water.

Stair Pick
BrandonReese

This is a specialized pick for making stairs.

Too many ores
TeufloV

This adds 53 new ores. But most of them are useless.