RPL/2 (Reverse Polish Lisp/2) is a langage derived from the RPL made by Hewlett-Packard for its HP-28S. It has some extensions (preprocessor, compilated libraries, new functions), a TeX output, and can draw graphics.
The Gamebook Engine is a cross-platform engine for
writing gamebooks, such as the "Choose Your Own
Adventure" series or the "Lone Wolf" series. TGE
can interpret scripts that use the "Hyena"