How the Rinse Index works
The Rinse Index scores licensed casinos out of 10 on one question: how long does your money last there? It is calculated from our own test data, never from what a casino pays us.
The licence gate
A casino only gets a score if we can find a current licence for it on the regulator’s own register. Casinos with an expired licence, no licence, or a licence they don’t publish are listed as not eligible, with the reason.
The four factors
Game RTP (40%). Average RTP of the slot versions the casino runs, across 20 popular slots. 92% scores 0 and 97% scores 10, on a straight line between.
Bonus value (25%). What a $100 bonus is worth after the expected cost of clearing it (wagering × house edge × $100). No bonus scores a neutral 5. Each $20 of value adds a point and each $20 of net cost takes one away.
Rakeback (20%). The share of the house edge you get back, measured over at least a week. Getting 25% or more of the edge back scores 10. Rakeback paid as bonus money instead of cash counts half.
Withdrawals (15%). Timed real withdrawals. 10 minutes or less scores 10, and each doubling of the wait takes 2 points off.
How we test
- 01 Check the licence. We find the licence in the casino footer and check it on the regulator’s public register. No current licence, no score.
- 02 Sign up and deposit. We open a real account from an allowed country and deposit crypto, timing how long funds take to arrive.
- 03 Check slot RTP versions. We open the info screen of 20 popular slots and record which RTP version the casino runs.
- 04 Read every bonus term. Wagering, max bet, game weighting and expiry, turned into an expected cost.
- 05 Play and log rakeback. We play for at least a week and log what is actually paid back.
- 06 Withdraw and time it. We request a withdrawal and time it until the coins land in our wallet.
- 07 Re-test and re-score. Every ranked casino is re-checked at least monthly. Scores change when the data does.