Sailing
cakenggt

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

The Grue mod
Majozoe

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

Kudzu
chaosomnium

kudzu (invasive spreading plant) mod, with useful crafts and items

Ghost Snip (spectrum bow)
scorpiox8659

Add a bow named "Ghost Snip"

Grave
ElCeejo

Adds an eerie biome with multiple mobs.

Nether Mobs
Dirkfried

Add monsters and dragons to your nether world.

Dragan-uisge (Water Dragon)
Homiak

Adds powerful Water Dragons, useful craftitems and Draconic blocks.

X Spawners Mobs
SaKeL

Adds mob spawners.

Sprinting
xXOsielXx

Allow sprinting/running with double tap

Slimes Redo
TenPlus1

Add green and lava slimes to your world.

Cannons
addi

Adds Cannons. Insert muni and gunpowder, and punch it with a torch. The muni can destroy nodes and hurts players.

Armor Expanded
Crystalwarrior

Expanded armors for 3d armors

Thirsty
csirolli

Adds a "thirst" mechanic, similar to hunger.

Horror: Rescared
SkyBuilder1717

Fork of TX_Miner's Horror mod, but heavy modified with adding a lot of additional stuff.

Hazmat Suit
1F616EMO

Protect wearer from fire and radiation

Strange Weapons
Robot10&Scheletor

Adds many strange and improbable weapons

Balrog Sword
DragonWrangler

adds a balrog sword

Accessories
GigaByte

add 3d accessories

Dragonbone Stuff
Robot10&Scheletor

Adds dragonbone set

Ancient Ice Stuff
Robot10&Scheletor

Adds a new powerful ore to the game

Startest
Robot10&Scheletor

This mod adds several space stuff to the game.

The Nether Reactor
Darth

The Nether Reactor from MCPE, added to Luanti!

Cube Mobs
Xanthus

Adds various cube mobs with different abilities using mobkit.

3D Spikes
BryanGruik15

Adds spikes to the game.

Shield Tome
LissoBone

Magic Shield Tome.

Raids
DragonWrangler

Allows server owners or server admin to start mob raids to attack settlements or players

Ocular Networks
mt-mods

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

Fire extinguisher
SkyBuilder1717

Adds fire extinguisher, which can extinguish some fire

Atium
GenesisMT

A strange a ore with tools.

Blood Bane Sword
Blocky Player

OP sword for moderators. In memory of an old teacher, who had a mod similar to this on a private server.

Cthulhu eye boss
GigaByte

Cthulhu eye boss adds

Make fighting harder by allow damage to be done to attached player (player in cart, on boat, etc)
SFENCE

Limit defensive potencial of some entities, player can be attached to.

Xeno-Zapper
MadKamel

The Xeno-Zapper is an electroshock self-defense weapon used in self-defense against hostile alien fauna within melee range.

After Earth
AiTechEye

The earth's ecosystem has collapsed, and there are no biologically environment left.

Cannonballs
AwesomeDragon97

Launch explosive cannonballs at your enemies.

resurrection cross
GigaByte

add resurrection cross

Cave explorer tool
SFENCE

Cave explorer tool to use acoustic signals for undergound exploring.

Bouncy Leaves
1F616EMO

Adds bouncy and fall damage reduce effect to leaves

Waste
Jolesh

Adds Waste and ways to recycle it into useful resources

Banshee
ElCeejo

Adds Banshees, a ghostly mob that haunts pine forests