# u6-decompiled: decompiling Ultima VI: The False Prophet

> This repository decompiles the PC and MS-DOS version of Ultima VI: The False Prophet, version 4.5. It builds GAME.EXE and compares the result with the original. The C portions were built with Borland Turbo C 2.0.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/ergonomy-joe/u6-decompiled>
- Primary source: <https://github.com/ergonomy-joe/u6-decompiled/blob/1ff7a6dffb8e83404019e350861161f3d246b9d7/README.md>
- Catalog page: <https://awesomerea.org/resources/u6-decompiled-case/>
- Record JSON: <https://awesomerea.org/resources/u6-decompiled-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/u6-decompiled-case/index.md)

## Requirements & limits

- Assembly files need TASM 2.0 and MASM 3.0. Run SRC/OSILIB/doit.bat, then follow SRC/doit.bat, which uses MAKEFILE.
- The README names no license.

## Primary sources

1. <https://github.com/ergonomy-joe/u6-decompiled/blob/1ff7a6dffb8e83404019e350861161f3d246b9d7/README.md>

## More in Games

- [Ultima IV: near-matching reconstruction of its DOS executables](https://awesomerea.org/resources/ultima-iv-decompiled-case/index.md) · Case study
- [Underworld Exhumed: reconstructing Ultima Underworld I and II](https://awesomerea.org/resources/underworld-exhumed-case/index.md) · Case study
- [UNO!: a Game Boy Color disassembly](https://awesomerea.org/resources/uno-game-boy-color-disassembly-case/index.md) · Case study
- [Valkyrie Profile: a partial matching PlayStation decompilation](https://awesomerea.org/resources/valkyrie-profile-decomp-case/index.md) · Case study
- [Warblade Service Release: decompiling Warblade 1.34 and replacing PTK with SDL](https://awesomerea.org/resources/warblade-service-release-case/index.md) · Case study
- [Wario Land 4: a matching US/EU and Japanese GBA decompilation](https://awesomerea.org/resources/tsilaallaoui-warioland4-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.