I wasn't paying much attention to the development of this game. Only managed to drag my 'lazy' bump recently. Tried to catch up after dipping my feet a little with a bundle purchase.
As I dug more, this game has had quite a history. First version was born pre-hard fork and allegedly had malformed cousin on Ethereum. 
This time round, there is a pre-existing group of former players who knows the basics and may gain a upper hand over the noobs like myself. Therefore, I spent the day reading up and trying my best to understand the fundamentals of HashKings 2.0 from the following posts and posts beyond.
Below is a diagram illustrating of my understanding roughly derived from State of Hashkings part 1 - Basic Gameplay Scenario. It may be inaccurate and corrections may happen after this post.
Some helpful links.
Hashking Official App
Come have a chat, get help, socialize at discord
Hashking's Busy Bird