Solomon's Key 2 (OpenDana)

NES

A native, moddable reimplementation of Solomon's Key 2 (Fire 'n Ice in the US), the NES puzzle game, written in C11 with a deterministic core with no SDL dependency and a thin SDL2 layer on top. It doesn’t run code from the ROM or emulate the console: on first start it reads your European ROM once and extracts the game’s data (levels, graphics, text, music, and sound effects) to a local folder. It adds a level editor and a level catalogue driven with the mouse, save states, gamepad support, a mod system (packages of JSON and PNG files with schemas and a validator), and a command-line API to validate, play, and render levels. Version 1.0 (October 12) ships Linux (tar.gz and AppImage), Windows (zip), and macOS (dmg), with audit files; it is the latest of 3 releases. 25 of its 26 commits list Claude as a co-author.

You needYour own ROM of the European release of Solomon's Key 2 / Fire 'n Ice (SHA-256 853646c50889dfb7a74c2acf7cf3b76f42d044745433f706dca33f47d826cd1d); any other file is refused without changing anything. Linux, Windows, or macOS.

How it gets to PC

Fan reimplementation

Console

Nintendo Entertainment System / Famicom

Original studio

Tecmo

Year

1992

Author

dvilelaf

Stars

6

Last activity

2026-10-12 · 1 month ago

Latest version

v1.0.0 · 2026-10-12

License

GPL-3.0

Language

C

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