This is a full translation of Ultima Underworld into Spanish, one of a series of Spanish Ultima translations that appeared within the last couple of years.
This is a not-quite-complete Portuguese translation of Ultima Underworld. A full translation does (or did) exist, but I seem to have misplaced the relevant file, and it is no longer available for download from the developer.
Windows NT (and NT-derived systems like Windows 2000) are not always game-friendly platforms. Moscow Dragon came up with a patch that allowed Ultima Underworld 2 to run under the Windows NT/2000 environment, and this was later expanded upon by Sir Cabirus Dragon to support Ultima Underworld 1 as well.
This patch adds MIDI music to Ultima Underworld, to give the game a bit of additional atmosphere.
While this patch should not be necessary if you’re running the CD-based version of the game, it corrects several known bugs in the disk-based version of the game (including the dreaded “Inventory Bug”).