frotz (Z-machine interpreter) Frotz is an interpreter for Infocom games and other Z-machine games. It complies with standard 1.0 of Graham Nelson's specification. Games can be found at: http://www.ifarchive.org/ Optional dependencies: libmodplug - If this is installed, the curses build (frotz) will support sound. SDL2_mixer - If this is installed, the SDL build of frotz (sfrotz) will be included in the package. sfrotz always supports sound.