Here is my review:

Regarding Registration, you should make two separate buttons "Sign-in" and "Register"
Right now it's one unique "Sign In / Up" button on the top, and if you already have an account you need to make two clicks:

1 - Click "Sign In / Up" button
2 - then on the modal click again "Sign In"

Many time I end up typing my user & password in the "Create your account"  section and then have to type it again when I realize my mistake, not really "User-Friendly" in my opinion.

But when it comes to the actual game Chain's Code, the User Experience is simply awesome, it's by far your most addictive and the most fun game today.


You're team achieve so much a year from its ICO:
https://tfl.trueflip.io/en/history

The number of milestones you deliver is just outstanding, the quality of your "FlipCast" each quarter is just incredible for a so young startup
I don't know how many people you are, but you definitively look like a million bucks !!!

So all the best for your project, from one of your earliest fan and early ICO Investor.