Quite fun, despite the lack of sound in the game.
My first playthrough I walked around, finding every thing I needed, and the got a flashlight that could "burn gorgons", yet I hadn't encountered a single one yet :) Then I played it on hard and got owned, which I found to be a lot more fun :)
All in all it's a good game with some very interesting visuals in regards to light, a simple concept and a decent excecution.