This is a translation into Unlambda esoteric programming language of Don Knuth's CWEB version of Adventure (aka Colossal Cave Adventure). The original Adventure was written by Willie Crowther and Don Woods.

You need an interpreter of Unlambda version 2. I recommend the c-refcnt interpreter included in the Unlambda 2.0.0 distribution, or the first one written by Emil Jerabek.

Or, you can play it on your web browser at inazz's JavaScript Unlambda interperter!

The Unlambda code is generated by the Scheme code in src/ directory. You need Gauche Scheme interpreter to run it.