Ethereal NG
TenPlus1

Ethereal mod uses the v7 mapgen to add many new biomes to the world.

Plantlife
mt-mods

Adds various kinds of plants, fruit bushes, fallen trees, and a whole host of foliage and other ground cover.

XaEnvironment
AiTechEye

A game that aims to contain lots of environments and things.

More Trees!
mt-mods

Adds a whole bunch of new types of trees, some bearing fruit or similar, using biome_lib for the placement engine.

Biomes
Atlante

Adds 8 new Biomes as well as more type of wood and tree etc... Discord server: https://discord.gg/GFBBhdvV

Loria (alpha)
siegment

Survival in hardcore acid-alien sci-fi themed world

Caverealms Lite
Shara

A mod for Minetest to add underground realms.

Algae
Just_Visiting

Algae mapgen addition to "Minetest Game"

KSurvive 2
MadKamel

A game built 100% from scratch, including code, textures and sounds.

Wilhelmines Natural Biomes
Liil

Adds 9 new biomes

Wilhelmines Living Desert
Liil

Adds plants to the default deserts of minetest game.

Better Farming 2.1.0
Atlante

Added lots of farming (30 plants) for fun with great graphics! Discord server: https://discord.gg/GFBBhdvV

Rubber Addon for MineClone
Biochemist

Adds rubber and related Items to MineClone.

Gal
ShadMOrdre

A collection of naturally occuring materials, including: sand, clay, dirt, stone, ore, metals, glass, various water types, oil, lava, grease, liquid soils, and decorative stones.

Bamboo
AwesomeDragon97

Adds bamboo which generates in jungles and can be used as a crafting ingredient.

Herbs
Clyde

Adds 15 flowers and 6 mushrooms.

Valleys Mapgen
Gaël de Sailly

A map generator with valleys, rivers, mountains and many plants.

NodeCore Nature: Revised
Warr1024

Updated, fixed, enhanced edition of Winter94's NodeCore Nature

Euthamia
Avicennia_g

Grassy Goldenrod plant for Nodecore