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.

Herbs
Clyde

Adds 15 flowers and 6 mushrooms.

Loria (alpha)
siegment

Survival in hardcore acid-alien sci-fi themed world

Algae
Just_Visiting

Algae mapgen addition to "Minetest Game"

XaEnvironment
AiTechEye

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

Caverealms Lite
Shara

A mod for Minetest to add underground realms.