DungeonPack adds a lot of new dungeons.
Control the spawners used by Vanilla Minecraft
A mod that add's Worthwhile dungeons to mincraft. if want a copy of the source code for Dungeoneer please email me at email@example.com
Dungeons and more
This awesome mod lets you duple, or double, items!
Changes UUIDs of loaded Entities in case their UUIDs are already assigned (and removes log spam)
Warn if a tool is at low durability
A minecraft mod that notifies you when your durability gets at a certain percentage
Shows durability of tools with advanced tooltips off.
Creates a HUD that shows current item durability, arrow count, and inventory slots
This is an example mod
Crystals spawn naturally in the world,they can be used for all manner of things.