Hugues Ross has written the most helpful reviews on ContentDB.
Top texture pack
Hugues Ross has a texture pack placed at #1.
A mapmaking API.
Cartographer for Minetest Game
Adds regional maps that you can craft and place (Minetest Game version)
Cartographer for Repixture
Adds regional maps that you can craft and place (Repixture version)
Mtg Craft Reverser
Makes crafting recipes in Minetest Game reversible
A simple texturepack reminiscent of classic RPGs