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Produced by: emuWorks
Website: hack4u
Releases:
* hack4u - Windows (541.8 KiB, 324 hits)
* hack4u - Mac (2.5 MiB, 286 hits)
* hack4u - Linux (1.0 MiB, 286 hits)
* hack4u - Source (289.1 KiB, 273 hits)

hack4u is a program to “edit the save games of Ultima 4: Quest of the Avatar for the NES.” Any or all of the three games saved in the SRAM file (I trust that NES users who will be interested in this program know what that means) can be edited.

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Produced by: Ram Dragon
Releases:
* Ultima 4 Map Editor v1.1 (DOS) (598.1 KiB, 88 hits)
* Ultima 4 Map Editor v1.1 (633.1 KiB, 130 hits)

Original Version:
* Ultima 4 Map Editor (75.2 KiB, 338 hits)

A utility to edit the graphics tiles in Ultima 4.

The original editor required EGA graphics and the original shapes.ega file; it was a DOS-based executable. Ram Dragon recently (as of April 2011) issued a recompiled, Windows-friendly version that removes the resolution limitation. This new version also features some improvements built with djgpp and Allegro, such as the ability to take screenshots. It also relies on the upgraded graphics tiles for Ultima 4 (these are included with the download), but still requires the map files from the original game.

Toward the end of that same month, Ram Dragon also released a re-complied version of the original DOS-based editor, which features all the enhancements present in the Windows version.

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Releases:
* Ultima 1, 3, 4 & 5 Cheat (19.2 KiB, 712 hits)

A cheat program that can be used for Ultima 1 through to Ultima 5 (but not, according to its name, for Ultima 2).

Note: this update may not work with Ultima 3, and may also be missing the strength attribute. This has been found to be the case in DOSBox, at any rate, although at present it is not known whether the error is within the program proper, or whether it is in some way related to DOSbox.

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Produced by: Nodling Dragon
Website: Ultima Tech Info and Patches
Releases:
* Atari ST File Formats (2.7 KiB, 240 hits)
* EGA Driver Information (6.6 KiB, 214 hits)
* Bugs in Ultima 4 (5.2 KiB, 415 hits)

These three files from Nodling Dragon include a description of the Ultima 4 game data file formats, although only for the Atari ST version (u4atarist.txt), general information about the EGA driver that the game uses (u4ega_driver.txt), and a list of bugs and undocumented features of the game’s PC version (u4_bugs.txt).

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Produced by: Nodling Dragon
Website: Ultima Tech Info and Patches
Release:
* U4Encode Source (4.2 KiB, 231 hits)
* U4Decode Source (13.8 KiB, 218 hits)

These two files allow you to de-compress (decode) or compress (encode) Ultima 4‘s game data files, which have been compressed using the formerly-patented LZW algorithm.

NOTE: the packages here include only the source code necessary to compile a command-line utility in each case.

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Produced by: Nodling Dragon
Website: Ultima Tech Info and Patches
Releases:
* Replacement for avpatch (7.6 KiB, 751 hits)

Nodling explains: “You can’t install the Ultima 4 Upgrade under DOS, because avpatch.exe is a Windows console application. The new avpatch.exe can be run in DOS, Windows and DOS emulators.”

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Produced by: Gary Thompson
Releases:
* Character Editor (39.2 KiB, 531 hits)

A character editor for Ultima 4.

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Produced by: Centurion
Releases:
* Map Editor (38.8 KiB, 239 hits)

A map editor for Ultima 4. Be sure to read the included documentation, as the process of editing the map is somewhat complex at first.

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Produced by: Xenerkes Dragon
Releases:
* Ultima Savegame Editor v1.3 (204.7 KiB, 1,091 hits)

Another utility from Xenerkes Dragon, this program allows you to edit your savegames from Ultima 1 through to Ultima 5. It allows you to change everything, including character location, and also makes it possible to get horses and boats in Ultima 3 (which is otherwise more than difficult).