A browser recreation of the 1982 DOS game -- choose a display.
The original shipped with genuine support for both color (CGA) and
monochrome (MDA/Hercules) displays, auto-detected at launch on real
period hardware. This recreation can't detect your monitor, so pick
one below instead -- each link launches the game already set to that
mode.
Color (CGA)
The default. Standard 16-color IBM CGA/EGA/VGA text-mode palette.