CraftTweaker allows modpacks and servers to customize the game. With CraftTweaker you can change recipes, script events, add new commands and even change item properties!
Millénaire is a Minecraft mod that aims to fill the "emptiness" left by the default Minecraft Villages by adding new NPC villages loosely based on 11th century cultures.
A mod to extend the beginning portion of Minecraft's early game and diversify vanilla gameplay, without breaking too much from the typical gameplay flow.