Spectral Dungeons started out as a coffeebreak roguelike for the ZX Spectrum. It was soon followed by another game called Escape From Cnossus, and finally by an expanded adaptation in Python, using the curses module. The family resemblance should be obvious if you play them in order.
The first two games were made with Boriel's ZXBasic compiler and require a 48K Spectrum to run -- or more likely an emulator. Tomb of the Snake should run out of the box on a Mac or any typical Linux distro. Last but not least, Dungeon Romp is the Javascript prototype that sparked the entire series. It should work in any modern web browser.
All games are available at No Time To Play and on Itch.io. Assets with sample files can be found on Open Game Art.
Please note that only Tomb of the Snake is supported. Everything else provided as-is.