So, the beta files are not of much use without the system.

So, the beta files are not of much use without the system.

So, the beta files are not of much use without the system. where exactly can I find this rules? It seems it is the Apocalypse system… 

Is this the one? 

http://www.drivethrurpg.com/product/95433/Apocalypse-World?filters=0_0_44825_0_0

Also, do I need to have this book? or will the Masks RPG book will come with the whole rules?

http://www.drivethrurpg.com/product/95433/Apocalypse-World?filters=0_0_44825_0_0