I'm not so impressed. The game is not working. I am running on Linux Mint 17.2. I start the game. I get an options dialog. Mouse-clicks do nothing. Finally I try the tab key, which allows me to cycle through the settings and hit enter to select one. I set the screen to fullscreen at 100%. I get an image of a tree and fog and some music. Looks much more like 50-60% of the screen used than 100%. Mouse-clicks on the image do nothing, tab key does nothing, there is no tutorial. What a piece of trash.