Welcome to LIFP official webpage!

Lisp Interactive Fiction Project is a project to create a Common Lisp environment for playing and developing Interactive Fiction games. It includes:

• if-lib, a Common Lisp extension that inplements world model, parser and other features of IF games and allows a programmer to use constructs, borrowed from Inform (currently the most popular IF language), which make creating IF very easy.
• a graphical interpreter to play games created by the above. It currently uses Tk for displaying stuff. This part is not very developed yet.

Download

The latest version is 0.1.

If you're using Windows, you can download the whole package here. It includes executable, two example games and the source code.

If you are using some other OS, you'll have to compile it yourself. You need:

• CLISP - other Common Lisp implementations should work as well, but this is not tested
• ASDF
• LTK - Lisp layer for Tk
• pathname library by Peter Seibel (you need Chapter 15 code)

After you produced an executable for your OS, consider sharing it with me, so I can put it up on this page.

The source can be obtained here.

Documentation

There is no documentation yet. Meanwhile you can read the code of examples and compare to their corresponding Inform code.

Development

The project's Darcs repository is at http://www.common-lisp.net/project/lifp/darcs/lifp (browse). Type

darcs get http://www.common-lisp.net/project/lifp/darcs/lifp

to get the latest source. You may also use darcs to implement bugfixes and mail them to me. You can also become a project member and get write access to the repository.

If you want to know the latest news of LIFP development, join these mailing lists:

• http://common-lisp.net/cgi-bin/mailman/listinfo/lifp-devel
• http://common-lisp.net/cgi-bin/mailman/listinfo/lifp-announce