Among websites that were designed for crypto-based gambling, TrustDice.win has by far the best referral system. Easily, users can earn 50% of other user's faucets. All by either typing in their referral code or clicking their referral link. Displayed below, my personal referral earnings will be shown as an example:

The more friends you are able to invite, the more commission you receive. If you have 4 or 5 active users that you invited, you will earn more than 2x your regular daily faucet's amount.

I encourage each reader to share their referral in the comments and spread this article to help gamblers all around the crypto community. Good luck to all and make sure to gamble wisely.