Kathleen Fischer is one of my favorite writers, with the conversation game Redemption and the romance game Masquerade.
The game is a departure for her, consisting of one huge mechanical puzzle. However, it still includes her trademark writing and memory system.
You are alone on a world whose people you saw die 20 years earlier. You roam about, remembering the tragedy, and solving puzzles to get your tool to repair your ship.
The puzzles is fiendish, even on easy mode. Hard mode is well night impossible.
There is no walkthrough, but I found some hints on googles archives of the old rec.games.intfiction site.
I recommend it for fans of big puzzles or haunting atmosphere.