Portable Ultima Patches
A set of patches for Ultima 1 through Ultima 7 Part 2: Serpent Isle, which should theoretically be applicable to most installations of the games, inside or outside of DOSBox.
Author: WtF Dragon
Pix’s Ultima Patcher
Pix’s Ultima Patcher is your one-stop method to ensure you have the most up-to-date copy of Ultima 1!
Ultima 4 Hythloth Fix
A patched version of Hythloth for Ultima 4, which makes level 6 of the dungeon passable.
Ultima 4 Technical Information
A series of files documenting different pieces of information about Ultima 4’s game data, bugs, and EGA graphics driver.
Replacement for avpatch
A replacment for an executable that causes issues with installing the Ultima 4 Upgrade under DOS.
