The hacker game has been always in the beta mode for some good reasons.
The multiplier that you can achieve from this game is insane with of course the maximum being 20 busted cells and 20 websites hacked with an insane multiplier, If you can hack it 
Try some big multipliers and best of luck in hacking them.
- There will be a slight variation in the multiplier shown from the actual multiplier. Actual multiplier will be somewhat lesser. In this calculator the house edge is calculated at the end of the entire session instead of calculating on every website hacked. If you hack only one website it will be same as the actual multiplier shown.
Calculate all the hacker game multiplier here: https://www.smartgamblingedge.com/p/hacker-multiplier-calculator.html
If you have any suggestions feel free to comment below.