System's Twilight

MacAddict commented that System's Twilight felt similar to 3 in Three, with hard puzzles, quality sound and graphics, and a witty storyline. Inside Mac Games rated the game four out of five, and also noted the game's similarity to 3 in Three, saying it took "the genre of Cliff Johnson game [...] to new heights." Inside Mac Games called the game "very well crafted in all aspects": the story is involved and complex and the puzzles are clever and original. The review also praised the interface, graphics, and sound.

Adventure Gamers felt that System's Twilight improved on "Cliff Johnson’s metapuzzle adventures" by adding "some much-needed nonlinearity as well as a stronger narrative." The game "synthesizes abstract puzzle-solving into an adventure game to great effect", with an ending that is rewarding "in terms of both adventuring and puzzle-solving."