Case study

StarTropics: a byte-matched NES disassembly

Reconstructs StarTropics (USA) as labelled ca65 assembly across its 32 PRG banks and compares the resulting ROM byte for byte with the user's copy. Python tools generate the assembly from annotations, decode game data and export debugger labels.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 1
Last commit: 2026-10-19
Language: Assembly
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: A copy of StarTropics (USA).nes with the specified SHA-256 hash.
Prerequisites: cc65 ca65 and ld65, plus Python 3.8 or later; some rendering tools need Pillow.
License: The tools, annotations and documentation use the MIT License; the game is excluded.

Cite

BibTeX

@misc{startropics-disassembly-case,
  title = {{StarTropics: a byte-matched NES disassembly}},
  howpublished = {\url{https://github.com/jogalleciez/StarTropics-decomp}},
  url = {https://github.com/jogalleciez/StarTropics-decomp},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/startropics-disassembly-case/}}
}

Plain text

StarTropics: a byte-matched NES disassembly. https://github.com/jogalleciez/StarTropics-decomp (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/startropics-disassembly-case/

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About this entry

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Primary sources

README.md GitHub · jogalleciez/StarTropics-decomp · Revision 12d2560
docs/ARCHITECTURE.md GitHub · jogalleciez/StarTropics-decomp · Revision 12d2560