Unidye by LinusPhoenix
Makes Wool Dying and Dye obtaining much more convenient. Needs IC2.
Unified Items
Adds items and blocks like copper and tin so that we can have a more 'unified' playing experience
Unified Items by chazwarp923
Adds items and blocks like copper and tin so that we can have a more 'unified' playing experience
Unified Mode for In-game Account Switcher by The_Fireplace
The Unified Mode addon for In-Game Account Switcher
Unifier by grundyboy34
Item Unifier based on AutoUnify
Unify Ore by Dr0n1k
Adding ore, blocks, ingots and etc from useless materials mods
Unikitty Mod by Pauls Mods
Adds Unikittys which can be tamed as pets & a very OP armor.
UnimCraft
UnimCraft adds new Items and Blocks!
Unique Crops by bafomdad
Unique crops, unique growth, unique drops
Unique Enchantments Base by Xaikii, Speiger
Unique Enchantments Base Mod
Unique Enchantments Battle by Xaikii, Speiger
A Set of Unique Battle Enchantments