Ferret

Inspired by Zork, a game called Ferret was created in the 1980s. It existed only on Data General computers and was consequently little known. It has recently been ported to the DOS platform as a Windows text mode executable. The ethos of the game was full information, i.e., no hidden things, spells, secrets or specialist information. The data needed to solve puzzles is either present in the game or generally available. This doesn’t mean it is an easy game!
Useful features are that the game is extendable and has the ability to use command scripts and combine them with saved games to minimise searching time, etc.
The game is available for free from http://www.jugglingsoot.com.
See Info and News in the game and http://www.ifwiki.org/index.php/Ferret for more information.
Have fun.
Ferret

A new release of Ferret is being planned. If there are any new features you would like included please post a reply.
Ferret Authors.

Version 9 of Ferret has been released and is available for download from http://www.jugglingsoot.com.
The new release contains more rooms (over 1,000 in total), more puzzles, more verbs, etc.
Ferret Authors.