Mineclone2 New Ores and Deepslate
Adds 30 new deepslate blocks!
A mod for Minetest to add underground realms.
Adds the ability to bake clay into blocks and colour them with dye.
Powerful cloud tools.
Multiple Biome Generator
230 Pseudorandomly Generated Biomes, Trees, Fruits, Ores, Tools, and Liquids
Tinkers Construct in Minetest!
Adds quartz ore and some decorative quartz blocks
SkyRealm for NodeCore
SkyBlocks inside vanilla NodeCore
This combines several other mods that I consider a basic minimum starting point for worlds.
Darkage - the original plus improvements
DarkAge adds several new nodes and crafts to create a pre industrial landscape.
Alien Tools Mod for Minetest - adds Alien Tool, Shield, biome, etc
Adds a wide variety of Australia-themed biomes and content
NodeCore Nature: Revised
Updated, fixed, enhanced edition of Winter94's NodeCore Nature
Adds 4 new biomes and TONS of new blocks!
Adds some pretty OP tools :)
Adds Nyan Cat's evil twin, Tac Nayn (and a gray-scale rainbow).
This mod aims to make copper/bronze more realistic by making them slowly oxidize into a bluish/green block when exposed to water.