Case study

River Raid: an annotated ZX Spectrum disassembly

River Raid is reverse-engineered from its ZX Spectrum 48K tape image into an annotated SkoolKit disassembly. Pasmo assembles the generated source for comparison with a game snapshot, and the repository records gameplay-loop and data-structure findings. The author reports a byte-identical build while routine documentation is still in progress.

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: 15
Last commit: 2026-04-05
Language: Assembly

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: The original game tape image, SkoolKit 8.4 or newer, and Pasmo are required.
Limits: The project plan reports descriptions for 37 of 229 routines at its stated checkpoint.
License: No licence file in the repository.

Cite

BibTeX

@misc{river-raid-zx-disassembly-case,
  title = {{River Raid: an annotated ZX Spectrum disassembly}},
  howpublished = {\url{https://github.com/river-raid/river-raid-disasm}},
  url = {https://github.com/river-raid/river-raid-disasm},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/river-raid-zx-disassembly-case/}}
}

Plain text

River Raid: an annotated ZX Spectrum disassembly. https://github.com/river-raid/river-raid-disasm (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/river-raid-zx-disassembly-case/

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About this entry

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Primary sources

README.md GitHub · river-raid/river-raid-disasm · Revision 997a085
PLAN.md GitHub · river-raid/river-raid-disasm · Revision 997a085