Just download and open it, then follow the installation instructions. Please click 'read more'.
Note: This is an in-development pre-alpha version of the game and NOT an official demo.
Do not play it if you don't like bugs! This if full of them!!
You can play/test the game as it is now. Every month or so I will upload such a development build so that you can see the progress yourself and play it.
As the game is now you won't be spoilered too much because there simply is not much to be spoilered by. So feel free to check it out.