A game that aims to contain lots of environments and things.
Adds various kinds of plants, fruit bushes, fallen trees, and a whole host of foliage and other ground cover.
This combines several other mods that I consider a basic minimum starting point for worlds.
Adds a whole bunch of new types of trees, some bearing fruit or similar, using biome_lib for the placement engine.
Gaël de Sailly
A map generator with valleys, rivers, mountains and many plants.
A mod for Minetest to add underground realms.