There are worse ways to spend 30-60 minutes

Mandagon is a brief experience -- I played through it in 36 minutes, and even got all the "hidden" achivements without trying. And it's not a complicated game; nor is it thrilling, nor very thought-provoking.

But it's serene and relaxing, and exploring its single, Tibet-infused level is exactly engaging enough to sustain that running length. (And it's free, which is good.)

It's no Uncharted 2, but Mandagon's short trip to a snowy mountain peak is pretty satisfying, for what it is.

Better than: Escape the Game
Not as good as: Dyadic, I guess?
And...: this isn't a promotional demo for a paid game? Feels surprisingly "zen."