Wilhelmines Natural Biomes
Liil

Adds 9 new biomes

Advtrains More Slopes
Nazalassa

More, longer slopes for Advtrains

Mesecons lab
BuckarooBanzai

Mesecons laboratory and tutorials

VoxeLibre More Food
rudzik8

Adds five more food items to VoxeLibre (ex. MineClone2) or Mineclonia

SF Inventory Bags
TenPlus1

Adds a BAGS tab to SF Inventory with slots for different size bags to store items

Vehicles
D00Med

A mod that adds an api for cars, planes, and other vehicles.

Vein Miner
QuoteNat

Automatically mines ore veins and trees while sneaking

X Obsidianmese
SaKeL

Shooting sword, woodcutting / treecapitator axe, multiple plow blocks / plant seeds hoe, path creating shovel, pickaxe can place secondary items (e.g. torches) and more...

TechPack
joe7575

A Mining, Crafting, & Farming Modpack

Modding Library
LMD

Multipurpose Modding Library

Tables and Chairs
shaft

Adds tables and seating furniture

Mogue
covertiii

Roguelite Inspired by Brogue - Dive down to depth 13 to get the crystal and bring it back up to win

Areas
ShadowNinja

Areas is a advanced area protection mod based on node_ownership.

Fogblox
Kimapr

game of the fog

Skybox
sofar

Allows changing your sky to unimaginably epic scenes.

Scifi Nodes
D00Med

Adds some nodes for building futuristic/sci-fi themed constructions

Skills & States API
giov4

An API for creating skills and states.

Nate's CTF Guns
cracksmoka420

Adds craftable guns that feel like hit scan

Airship
APercy

Adds an airship to mtg

Ocean
StarNinjas

Adds coral reefs, fish, decorative ocean blocks and much more!

Flowerpot
sofar

A stylish flowerpot that can contain most plants.

Stained Glass
alerikaisattera

Stained glass blocks and panes

Mob Core
mt-mods

A Mob API meant to expand upon mobkit and bring easy to use features for creating new Mobs.

Hyperloop
joe7575

Allows building of tubes to let players travel from point point in seconds (900 km/h)

Pink Details
Crystal741

Makes various color blocks and tools to pink. If you like pink, this is for you!

OverPowered
AidanLCB

Adds super overpowered and expensive endgame tools, armor, weapons, and blocks

Superflat
srifqi

(Yet Another) Superflat Map Generator: Customize world generation layer by layer

Offhand Items
TestificateMods

Lets you equip nodes and place them without switching tools

Hallelujah Mountains (AKA Cloudlands)
DrFrankenstone

Giant rocks floating suspended in magnetic eddies. (skylands, islands, fantasy, giant trees)

Crafting Guide Plus
random_geek

Adds an intuitive and full-featured craft guide with auto-crafting to the player's inventory.

AdvTrains Livery Tools
Marnack

Livery tools for Advanced Trains mods.

Teleport Potion
TenPlus1

Adds craftable teleport potions (throwable) and teleport pads.

Worldgate
EmptyStar

Randomly generated teleportation network that can teleport players between gates throughout the world

Not actually the bare minimum base game
Sumi

Very little content base game so you can build off it. Totally permissive, you can relicense it or do whatever.

Biome Lib
mt-mods

The biome spawning and management library.

Cleaner
AntumDeluge

Remove/Replace unknown entities, nodes, & items.

Progress Bar Sword
LoopyAntenna

Replaces the Loading/Progress Bar with a cool sword.

Spiraling Down
Spiraling Down Devs

Work your way down in the hostile to life environment of Enceladus

Sounds Redone
StarNinjas

Adds sounds to specific blocks

Regrow
TenPlus1

Helps to regrow tree fruits instead of replanting saplings.