Fract bills itself as a Myst-like game, an unusual thing to be in this day and age; despite the enormous sales of Myst and, in the years after its release, a huge number of imitative titles, this style of game was never beloved of core gamers, and as the novelty of the genre wore off with sometime gamers, it gradually disappeared. And while there has been a resurgence, in recent years, of point-and-click graphic adventures, particularly ones in a Lucasarts mold, few have picked up the Myst mantle.
Fract is implemented in Unity 3D, and to create a Myst-like with it is an unusual choice, since most developers, given 3D to play with, immediately gravitate to action games. (John Szeder maintains that "3D is the death of gameplay" as a consequence.) Flanagan has created a somewhat Tron-like setting; mysterious polygonal objects moving in often empty space, jagged polygonal terrain underfoot, an algorithmically-generated ambient soundscape. It is impressive in its alien starkness, and while it perhaps does not create the same sense of wonder that Myst's detailed painterly landscapes did when it was released (as a time when CD-ROMs were giving gamers their first glimpse of high-quality graphics), there are times when you're happy to gaze about.
And a good thing, too, for another aspect Fract shares with Myst is a glacial pace. Once past the first introductory puzzle, you are in a rather large landscape with no immediate cues as to where to go. Several control features leading to puzzles exist in some of the structures scattered about the area, but finding them requires effort, and you will wander a fair bit before you do (hold shift while pressing the arrow keys to run to reduce the frustration a bit).
The puzzles are Myst-like also, in being what Johnny Wilson terms "plumbing puzzles" for the most part, though here it's a matter of directing beams of light to the correct destination rather than steam through literal pipes. The puzzles themselves are, however, well-clued, once you find them.
Given its pace and starkness, Fract will not be to everyone's taste; but if you have fond memories of Myst and enjoy slow-paced, contemplative games with a bit of puzzle-solving, you will enjoy it.
It is, incidentally, in beta, and while I've suffered no stability problems, others apparently have.
Fract is a 2011 IGF Student Showcase finalist.