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Interactive Fiction

Interactive Fiction is software that simulates an environment in which users use text to control characters and influence the environment. These are commonly called "Text Adventures".

It's like playing a novel.


Frotz (
For a long time Frotz has been a definitive engine for playing interactive fiction. It implements the Z-machine, which was invented by Infocom. With Frotz you can play the old Infocom games. Stefan Jokisch created Frotz for DOS in 1995. It was subsequently ported to many different platforms. In 2002, Stefan changed Frotz's distribution license to GPL and handed custody over to me. The Unix port became the reference version. I have since then maintained and improved Frotz. It is composed of two distinct parts: the core and the interface. This allowed many other programmers to port Frotz to many more computers. You can get Frotz for the iPhone now.

Inform6 Standard Library (
I prefer writing interactive fiction using Inform6. This version of Inform seems to be taking the backseat to Inform7 lately. I didn't want Inform6 to languish and fade away, so I picked up custody of the Inform6 library in 2012.

Inform6 Unix Package (
As I got going with updating the Inform6 library, Glenn Hutchings offered me custody of the Inform6 Unix package. This contains everything you need to write programs in Inform6 along with tutorials and documentation. This is not the reference version of Inform6, it's just the packaging and stuff to make it quick and easy to install on Unix machines.

Here are some works of mine that I feel are good enough for public display.

An unauthorized adaptation.
Release 1 / Serial Number 121026 / Inform v6.32

An unauthorized adaptation.
Release 8 / Serial Number 040716 / Inform v6.21

Robot Finds Kitten
A Zen Simulation
Release 7 / Serial Number 040523 / Inform v6.30


The Interactive Fiction Wiki
An encyclopedia of everything Interactive Fiction.

The Inform 6 Homepage
The Inform 7 Homepage
The ZILF Project Page
ZIL, Inform 6, and Inform 7 are programming languages for writing games which may be played on Z-machine interpreters such as Frotz.

The Infocom Gallery
The Infocom Gallery (mirror)
Scans and photographs of Infocom packages, manuals, feelies, and other things.

Society for the Promotion of Adventure Games
SPAG is an e-zine covering textual interactive fiction and other types of interactive narrative through reviews, interviews, and articles.

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This page was last updated on July 8, 2018