Utility Worlds by Zarkov
Adds player created mining and void dimensions.
UtilityBlocks
Adds extra things to the game.
UtilityCraft by CG777, MCreator
This mod adds power and telephone lines
UtilityOres
Adds a bunch of useful ores underground
UtilityStaffsBiomesOPlenty by RMHSh, MCreator
UtilityStaffsColors by ShadowPlayer51, MCreator
UtilityStaffsQuark by RMHSh, MCreator
UtilityStaffsTinkers by ShadowPlayer51, MCreator
UtilityStaffsTrio by ShadowPlayer51, MCreator
Utils Plus by TheJulianJES
UtilsPlus Mod by TheJulianJES
Utopia by VitroStatic
Now with full range of Fractured Ore!
Utopia Capes by Cricket
Capes for Utopia.
UtopiaCraft by HayHayden7, Stwunky
The Utopia
ul by Lenovo, MCreator