Clan MacGaming: System's Twilight Review
"System's Twilight is completely worth the download... that is, if you think you're a genius." By Samuel Marcus.
IF-Review: The Tale of the Reviewer
Review with spoilers by Gunther Schmidl.
Zarfhome: System's Twilight
Author's page about the Macintosh puzzle game in the style of 3 in Three and The Fool's Errand.