PaleoTest for Hades Revisited
SFENCE

Adds Prehistoric Fauna and Flora to Hades Revisited

Loria (alpha)
siegment

Survival in hardcore acid-alien sci-fi themed world

NodeCore Nature
Winter94

Adds many new biomes, plants, and scenery

Base Modpack
karlexceed

This combines several other mods that I consider a basic minimum starting point for worlds.

PaleoTest
ElCeejo

Adds Prehistoric Fauna and Flora to Minetest Game

Caverealms Lite
Shara

A mod for Minetest to add underground realms.