It's okay...
The reviewer below..."thought provoking?" The only thought it provoked in me was what other things exist that I could be doing other than playing this game.
The overall idea and concept behind it is unique and interesting. However, sliding a block around a thousand other blocks with no explanation whatsoever wears thin immediately.
Yes, I understand it's supposed to be like exploring, so there would be no explanation, but I died by hitting grey blocks, (grey is bad?) and kept re-spawning continuously. Technically, you can never die since it places you right back where you started the instant you killed yourself, which takes a lot of fun out of a game. What kind of game doesn't challenge you?
While an interesting attempt, it needs a lot more work and polish, specifically in the graphics and information department.