There is pbchess for Chess. It supports multiple ereaders. If I recall correctly, it includes a few other games and applications. For IF, QtFrotz was ported to

There is pbchess for Chess. It supports multiple ereaders. If I recall correctly, it includes a few other games and applications. For IF, QtFrotz was ported to Kobo devices. (For what it's worth, the main drawback with IF is the lack of a hardware keyboard on most e-Ink devices.)