I have downloaded this demo several times since I discovered this games outlet and it has never worked. The "graphics" only show up as unrendered wire-frame cubes. There is a green check mark and I am on the latest version of OSX. I have other Coladia games and have not had any issues with them so not sure what the deal is with this particular game.

As usual with Coladia, the graphics are very nicely done. The puzzles are clever but not very challenging, the game is a little short, and there is a groaner of a plot twist about halfway through; the last couple of puzzles (involving rotating stone discs) are not interesting at all. Not one of Coladia's best games; not really recommended.

This is the best game I have played. I really like this game and wouldn't mind playing it over again. I used cheats to get me through the harder parts, so the game ended a little quickly, but it was so fun! I would totally recommend it. Worth the money.