Case study

OpenDana: a C11 reimplementation of Solomon's Key 2

OpenDana reimplements the NES puzzle game Solomon's Key 2 / Fire 'n Ice with a deterministic C11 core and SDL2 front end. It imports levels, graphics, text and audio from the user's European ROM and adds a level editor, save states and JSON/PNG mods.

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: 6
Last commit: 2026-10-12
Language: C
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

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

How evidence classes are assigned

Requirements & limits

Prerequisites: A legally obtained European Solomon's Key 2 ROM matching the documented SHA-256 is required for first import.
Prerequisites: Source builds require a C11 compiler, CMake 3.16 or later and SDL2 development files.
Testing evidence: The macOS arm64 package is compiled but has not been run on Apple Silicon.
License: GPL-3.0-or-later licence.

Cite

BibTeX

@misc{opendana-case,
  title = {{OpenDana: a C11 reimplementation of Solomon's Key 2}},
  howpublished = {\url{https://github.com/dvilelaf/opendana}},
  url = {https://github.com/dvilelaf/opendana},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/opendana-case/}}
}

Plain text

OpenDana: a C11 reimplementation of Solomon's Key 2. https://github.com/dvilelaf/opendana (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/opendana-case/

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About this entry

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Primary sources

README.md GitHub · dvilelaf/opendana · Revision 51a9faa