Crypto casino glossary
The terms you will meet in casino terms and in our reviews, in plain English.
- Bonus abuse
- Play that a casino considers an attempt to exploit a bonus, such as opening several accounts. It is a common reason for withheld winnings.
- Cashback
- A percentage of net losses returned to you, usually with little or no wagering attached.
- Client seed
- The random string from your side in a provably fair bet. You can normally change it at any time.
- Confirmation
- A blockchain's acknowledgement that a transaction is included. Casinos credit deposits after a set number of confirmations.
- Excluded country
- A country whose residents a casino does not accept. Listed in the casino's terms.
- House edge
- The casino's built-in average advantage on a game, expressed as a percentage of each bet.
- KYC
- Know your customer. The identity check a casino runs to meet anti-money-laundering rules.
- Licence
- A regulator's permission for an operator to offer gambling, on conditions.
- Maximum bet rule
- A cap on the size of each bet while a bonus is being wagered. Breaking it can void the bonus.
- Nonce
- A counter that increases with each provably fair bet so that each result is different.
- Provably fair
- A system that lets you verify a game result was fixed before you bet and not changed afterwards.
- Rakeback
- A share of the house edge on your bets paid back to you, regardless of whether you win or lose.
- RTP
- Return to player. The share of all money bet on a game that it pays back over the long run.
- Self-exclusion
- A tool that blocks you from a casino, or a group of casinos, for a period you choose.
- Server seed
- The casino's secret random string in a provably fair bet. Its hash is shown before the bet and the seed itself afterwards.
- Trust score
- RollRated's 0 to 10 rating, a weighted average of withdrawal speed, terms, fairness, support and transparency.
- Wagering requirement
- The number of times a bonus must be bet before it can be withdrawn.
- Withdrawal approval
- The casino's internal review of a withdrawal request before it sends the transaction.
Go deeper
Guide
How to choose a crypto casino: a seven-point checklist
Licence, withdrawal record, terms, fairness, support, ownership and your own country's rules. What to check, in order.
Guide
Provably fair, explained: how to check a result yourself
Server seed, client seed, nonce. What the casino commits to, what you control, and how to verify a bet in two minutes.
Guide
Wagering requirements explained, with the maths
What 35× actually means, why "bonus plus deposit" changes everything, and how to tell what an offer is worth.