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Glossary

The key concepts behind crypto casinos, bonuses and withdrawals, explained.

StablecoinA crypto pegged to a fiat rate (USDT, USDC): the casino balance and the value of a win do not swing with the market. →TRC-20The USDT standard on the Tron network — usually the fastest and cheapest choice for casino payments, when the network matches at both ends. →WageringThe multiplier that says how many times a bonus has to be played through before the money from it can be withdrawn. →Game weightingThe percentage at which each game type fills the wagering: slots usually at full weight, table games at a fraction, some games not at all. →Max bet (with a bonus)The largest stake allowed while a bonus is active — exceeding it usually voids both the bonus and the bonus winnings. →No-KYCA casino where an account opens with an email address and deposits and withdrawals run without submitting documents — up to the casino's verification threshold. →Non-custodial walletA wallet whose private keys are held only by you — an exchange account or a casino balance is not one. →Provably fairA cryptographic mechanism with which a player can verify for themselves that a game's result was fixed before the bet was placed. →RakebackA refund on every stake regardless of the result — unlike cashback it arrives in a winning month too. →AML (anti-money-laundering check)The anti-money-laundering rulebook that obliges a casino to identify the client and the origin of their money when turnover or behaviour crosses a risk threshold. →Cold walletAn offline hardware or paper wallet whose private keys never touch the internet. →Curaçao licence (CGA)The most common operating licence among crypto casinos: since the 2024 reform direct licences are issued by the Curaçao Gaming Authority. →Gas feeThe fee charged by the network (not the casino) for processing a transaction — you always pay it yourself. →ConfirmationThe moment the network adds a transaction to a block; a casino usually credits the balance after one or two confirmations. →RTP (Return to Player)The percentage of stakes a game pays back in the long run: a 96% RTP means 4% of turnover stays with the house. →VolatilityShows how evenly a game pays: low volatility means often and little, high means rarely and a lot. →Self-exclusionA voluntary gambling ban; Estonia's HAMPI register applies only to Estonian-licensed casinos and foreign operators cannot see it. →CashbackA partial refund of the net loss at the end of a period — usually once a week and as a percentage of how far you went down. →ERC-20A token standard moving on the Ethereum chain. The fee is paid in ETH and fluctuates with network load. →BEP-20BNB Chain's token standard: cents and under a minute, but the address looks like an ERC-20 one. →Seed phrase12 or 24 words that ARE your wallet. Whoever knows them owns the money — a casino never asks for them. →Hot walletA wallet connected to the internet: convenient for everyday play, the wrong place to keep a larger amount. →Block explorerA public search on the chain: it shows whether your transfer has been sent, confirmed and exactly where it went. →PlinkoAn originals game where a ball drops through a pyramid. The risk level changes the distribution, not the house edge. →DiceA slider game where you choose the win chance yourself. The house edge is visible and usually 1%. →OriginalsThe casino's own studio games (crash, dice, plinko, mines): a higher RTP, provably fair, maths that differs by house. →Auto cashoutA multiplier set in advance in a crash game at which the system exits itself — it removes reaction time, not the house edge. →HashA one-way fingerprint (SHA-256). The provably fair check rests on it: the hash is published before, the seed after. →Server seedThe casino's random value, published hashed before a round and in full afterwards — that is what makes verification possible. →Client seedYour own input into the round's result. Without it the provably fair check is not complete. →LightningBitcoin's second-layer network: seconds and cents instead of waiting on chain and a high fee. →KYC thresholdThe amount you reach without documents. Every house sets it itself and every house reserves the right to change it. →Maximum withdrawalA cap on how much of a win arising from a bonus can be withdrawn. The rest is deleted. →VIP tierA status bought with turnover that raises rakeback. The value is calculable: rakeback minus the house edge. →Exchange-rate riskThe coin's value swinging while you play: a win can shrink in euros without a single lost round. →MinesAn originals game on a minefield: every square opened raises the multiplier, one mine zeroes the stake. →LimboAn originals game where you pick a target multiplier and the game draws a number: the simplest way to set volatility yourself. →USDTTether — the most used stablecoin at casinos. Value in dollars, a fee under a euro on TRC-20. →
Guide

Why these terms matter

The vocabulary of crypto casinos has two layers, and money hides in both.

The bonus layer. Wagering, max bet, game weighting, rakeback, cashback. These are the words that decide whether an offer is worth anything. The casino writes them into the terms, not onto the banner, and that is exactly where most players lose money — not through bad luck, but through a sentence they did not read.

The technical layer. Confirmation, gas fee, TRC-20, stablecoin, non-custodial wallet, cold wallet. These decide how fast and how cheaply your money moves — and what happens when something goes wrong.

The third and most important group is regulation: KYC and no-KYC, AML, the Curaçao licence and self-exclusion. These words determine what happens when you have a big win and the casino suddenly asks for a document.

How to use them

Every term here is explained with an example and a number, not with a definition for its own sake. If you are reading a casino's terms and hit a word you do not know, look it up here — and if it is not here, write to us through the contact page.

A practical tip: before your first deposit at a new casino, read three terms — wagering, max bet and no-KYC. Those three cover the vast majority of the problems people later write to casino support about.

The calculations behind the terms can be done with our calculators, and how they look at specific houses is visible in the ranking. The vocabulary of Estonian-licensed casinos — bank payments, EMTA, HAMPI — is covered by pangakasiinod.ee and freespin.ee.

The three terms that cost the most money

If you have to choose where to start, start with these.

Wagering is the number that changes a bonus's value. Without it, "100% up to €600" means nothing. Max bet is the rule whose breach voids a win — and it is usually broken by accident, with one larger spin. The KYC threshold is the amount at which the casino asks for a document; if it triggers when the balance is large, the money sits for weeks.

Those three explain almost every story that begins with the words "the casino would not pay me". The rest of the glossary is useful, but these three are compulsory.

Each term also lists related casinos and stories, so the glossary is a way to move straight to where the term actually applies.

Compiled by the editorial team
Marten Kask
Editor-in-chief
Data verified by
Rasmus Kuusk
Editor for crypto payments and security
Independent, not funded by any operator