Tides
markthesmeagol

Adds tides, WARNING: will delete water sources above sea level

Placeable Buckets for Catching Rainwater
Noodlemire

Allows empty buckets to be placed as nodes in order to collect rainwater.

Custom Falling Nodes
TenPlus1

Tweak falling blocks to add custom controls

Swamps
Hybrid Dog

Adds swamps

Sedimentology
sofar

A mod that adds realistic erosion and degradation of rocks.

Clump Fall Nodes
Noodlemire

Makes most nodes able to fall without enough support.

Nodeternal Darkness
Kimapr

make nodecore very dark

Living Grass
karlexceed

Adds a simple lifecycle to grass

Lava + Water > Stone
1F616EMO

Cool Lava into technically special stones for easier cleanup

Sounds
AntumDeluge

A set of free sounds & API.

Random Cool
pl608

Adds random ores on lava cool

Worldedge
Don

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

Epic
BuckarooBanzai

Enhanced Programmer for Ingame Control

Pedology
Wuzzy

Adds some different ground blocks in several wetness levels; the wetness slowly flows downward.

Sailing
cakenggt

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

Frozen Energy
bell07

Use frozen energy crystals to freeze water

M.Y.K.O.T.A
Xevin

Adds M.Y.K.O.T.A self-propagating mushroom liveform

Day-Coin Vote
Tomlaus

Adds an item that allows you to vote on whether it should become day!

Bucket lite
daret

Bucket - fork of Minetest Game mod with reduced "bucket" liquid flowing

Giant Mushroom/ Mushrooms
Hybrid Dog

Add mushrooms and giant mushrooms.

Thirsty
csirolli

Adds a "thirst" mechanic, similar to hunger.

Lightning
sofar

A mod that adds thunder and lightning effects.

Dynamic Liquid
FaceDeer

Flowing dynamic liquids and ocean-maintenance springs.

Climate API
TestificateMods

A powerful engine for weather presets and visual effects. Requires a weather pack like Regional Weather.

Regional Weather
TestificateMods

A weather pack for Climate API

Mineclone Better End
TX_Miner

Make the end better in Mineclonia and Mineclone!

Footprints
FaceDeer

Players walking over various types of terrain will leave footprints, and optionally pack the soil down into trails

Astralcraft
EmptyStar

Adds shooting stars and and related items to Luanti worlds

Waterfalls
Termos

Adds water erosion, so flowing water forms somewhat more realistic looking waterfalls.

Cozy Lights
SingleDigitIq

Early alpha. Improves the way light sources(torches etc) behave and allows to create huge lights, literal projectors with just a mouse click, light map will be computed for you.

K Ambient Light
ketwaroo

Pseudo ambient lighting to banish the deep dark night. Allows a few extra granular tweaks and override options.

Generic moon of Saturn
Red_King_Cyclops

Replaces the default earthlike setting with a generic moon of Saturn.

More particles
Qual

Makes game more immersive by adding more particles

Leafstride
EmptyStar

Allows players to climb and walk through leaves

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Better Ice
TheFanne

Modifies ice so that it melts into water when broken, and will be melted by torches

Additional Gravel
Hordeking

Adds overgrown gravel, similar to mossy cobblestone.

Astral
DragonWrangler

this is a fork of astral

Tree Particles
SuperStarSonic

Adds particles of falling leaves when you punch a tree

Radiant Damage
FaceDeer

A mod that allows nodes to damage players at a distance