Placeable Buckets for Catching Rainwater
Noodlemire

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

Tides
markthesmeagol

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

Sounds
AntumDeluge

A set of free sounds & API.

Luscious
sofar

Bring color into the mgv7 mapgen world.

Sailing
cakenggt

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

Frozen Energy
bell07

Use frozen energy crystals to freeze water

Clump Fall Nodes
Noodlemire

Makes most nodes able to fall without enough support.

tides & floods
Lemente

[WIP] [Warning: read full description] Adds the /sealevel command to rise/lower the sealevel.

Bucket lite
daret

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

Giant Mushroom/ Mushrooms
Hybrid Dog

Add mushrooms and giant mushrooms.

Climate API
TestificateMods

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

Mineclone Better End
TX Miner

Make the end better in Mineclonia and Mineclone!

Thirsty
csirolli

Adds a "thirst" mechanic, similar to hunger.

Ecliptic Cycle (Moon Phases)
Extex

Adds lunar events and moon phases by shifting the moon in and out of a lunar eclipse.

Lightning
sofar

A mod that adds thunder and lightning effects.

Falls
Just_Visiting

A Particle-based Waterfalls/Lavafalls Mod

Regional Weather
TestificateMods

A weather pack for Climate API

Dynamic Liquid
FaceDeer

Flowing dynamic liquids and ocean-maintenance springs.

Mymonths
Don

Adds days of the week and months. Also weather, including rain and snow.

Astralcraft
EmptyStar

Adds shooting stars and and related items to Luanti worlds

Funny Shadows
x2048

Adds sunlight shadows to your world

Astral
DragonWrangler

this is a fork of astral

More particles
Qual

Makes game more immersive by adding more particles

Footprints
FaceDeer

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

Solar Phases
VeproGames

Simulate variable daytime lengths, including polar day / night

Waterfalls
Termos

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

Astral
cronvel

Add regular moon phases, as well as 9 special natural and surnatural Astral events to discover!

Cloudcraft
EmptyStar

Adds tangible clouds and cloud-related items to Luanti worlds

Moon Phases
TestificateMods

Changes the moon to follow a cycle between eight different phases.

Nodecore Vulcan Improved
Winter94

Improved version of nc_vulcan.

Elephant Veins
jan Epiphany

Replaces small, sporadic ore pockets with sparse, gigantic ore veins.

NodeCore Naturae: Revised and Revamped
Winter94

The Latest and Greatest Version of NodeCore Nature, with updated code from Warr1024!

Raining Items
NO11

Minetest, but its raining random items!

NodeCore Steam: Resurrected
Winter94

Adds Steam & Basic Steam Behavior To NodeCore

Leafstride
EmptyStar

Allows players to climb and walk through leaves

Radiant Damage
FaceDeer

A mod that allows nodes to damage players at a distance

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.

NodeCore Skyblock
Kimapr

Play NodeCore on floating islands!

VoxeLibre Soaking Rain
rudzik8

Makes you take damage under rain/snow without leather topping or an umbrella