There is no need to build or install the game for testing, if you are using Windows 64bit operating system.
If not, you will have to build the game yourself with Unity or find other ways to launch the game. (i.e. Wine in Linux)
See https://docs.unity3d.com/Manual/PublishingBuilds.html for building the game.

To play the game, please do the following:
1) Open folder "Build".
2) Open file "Queen Aerisilium.exe".
3) A window appears.
4) (optional) select preferable Graphics settings if you want
	Beware! Not all input settings are mapped correctly, there is no point in changing them.
5) Click "Play!".
6) Wait until the game loads.
7) Click "Play" again.
