Cloned Games

Ultima 3 Disassembly

HaltedUnplayableNES

Based on Ultima III: Exodus

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Ultima III: Exodus (original game, not this project)Original game image
Image of the original game, Ultima III: Exodus. This project has no screenshots of its own yet.
Links, repository & details

About

Ultima III: Exodus is the third game in the Ultima role-playing series, released in 1983 for the Apple II and later ported to numerous other platforms, including an NES/Famicom remake. This project is a full disassembly of the NES version of Ultima III: Exodus, organized across its 16 memory banks, along with a companion browser-based map viewer covering the game's overworld maps and NPCs. Reassembling the disassembled source reproduces the original NES binaries rather than producing a modified or standalone game.

Requires original assets. Requires the original NES version of Ultima Exodus to disassemble.

Additional notes

Technical note
The included build process reassembles the disassembled code and checks the output against the original game's binaries using md5sum.
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