New to crypto casinos, or just want a quick refresher? This glossary covers the casino, slots, and crypto terms you'll come across at MetaWin in plain English. Use the A-Z index to jump to a term, or scroll through at your own pace.
The roulette variant with both a single and a double zero, which raises the house edge to about 5.26%.
A small mandatory bet placed before a hand or round begins. It's common in poker-style games and some slots to activate play or boost bonus chances.
In crash and multiplier games, a setting that automatically closes your bet at a multiplier you choose in advance, locking in a payout without needing to click in real time.
A slot feature that spins the reels automatically for a set number of rounds. Most games let you set stop conditions, such as a loss limit or when a bonus is triggered.
A hugely popular crash game by Spribe in which a plane climbs and a multiplier rises until it flies away. You aim to cash out before it does. It's the benchmark title for the crash genre.
A classic card game where you bet on the Player hand, the Banker hand, or a Tie. It's known for a low house edge and fast, simple rounds.
The total amount of money you set aside for playing. Managing your bankroll by sizing each bet as a small percentage of it helps your play last through both winning and losing streaks.
The original cryptocurrency and one of the most widely supported deposit options at crypto casinos. At MetaWin, BTC deposits settle quickly through Layer 2 processing.
A card game where you aim to beat the dealer by getting closer to 21 without going over. Using basic strategy can reduce the house edge to well under 1%.
A shared, tamper-resistant digital ledger that records cryptocurrency transactions. It underpins crypto deposits and the on-chain verification used by provably fair games.
A slot feature (also called Feature Buy) that lets you pay an upfront multiple of your stake to trigger a bonus round instantly, rather than waiting to land it during normal play.
A special feature within a game, such as free spins or a pick-me round, that offers bigger win potential. It's usually triggered by landing scatter or bonus symbols.
A mechanic where winning symbols disappear and are replaced by new ones falling into place, which can create several wins from a single spin. Also known as tumbling reels or avalanches.
Ending a bet to collect your current winnings. In crash and multiplier games, cashing out before the round ends locks in your payout at the multiplier shown at that moment.
A promotion that returns a percentage of your net losses over a set period as a rebate, helping to soften downswings.
A random value supplied by the player (often adjustable) that combines with the server seed to generate a provably fair result, so the casino can't predetermine the outcome.
A slot mechanic that pays for groups of matching symbols touching horizontally or vertically, rather than along fixed paylines. It usually needs five or more connected symbols to form a win.
A simple game of chance with a near 50/50 outcome. It's often offered as a fast, provably fair casino game where you pick heads or tails.
A fast-paced game type where a multiplier rises from 1x and can "crash" at any moment. You aim to cash out before it does. Examples include Aviator and MetaWin's own Crash.
Digital currency secured by cryptography and recorded on a blockchain. At MetaWin you can deposit and play with a wide range of crypto assets.
Decentralised Finance: financial services like trading, lending, and earning that run on smart contracts on a blockchain rather than through a central institution.
A free-to-play version of a game that uses virtual credits, letting you learn its features and flow before switching to Real Play with actual funds.
Adding funds to your account. MetaWin supports deposits across many crypto assets with Layer 2 processing for near-instant settlement, plus MoonPay for buying crypto with a card.
A category of games based on rolling dice or predicting dice outcomes, from classic Sic Bo to instant-win crypto dice titles.
In blackjack, doubling your original bet after seeing your first two cards, in exchange for receiving exactly one more card.
A feature in some crash games that lets you place two independent wagers in the same round, so you can cash one out early while letting the other ride for a bigger multiplier.
A major cryptocurrency and blockchain that supports smart contracts. ETH is a widely used deposit option at MetaWin.
The roulette variant with a single zero, giving a house edge of about 2.7%, which is better odds for players than the American double-zero wheel.
Government-issued currency such as USD or EUR. At crypto casinos, fiat is typically converted through an on-ramp service like MoonPay to buy crypto for play.
Branding for solo, RNG-based digital versions of live casino games, letting you play table classics without a live dealer.
Bonus spins awarded without deducting from your balance, usually triggered by scatter symbols or a bonus buy. One of the most common slot features.
A live casino format hosted by a real presenter that blends casino betting with entertainment-style gameplay, such as wheel-based or dice-based shows.
A transaction fee paid to process activity on a blockchain such as Ethereum. Layer 2 processing helps keep deposit costs low.
A fixed-length cryptographic fingerprint of data. In provably fair games, the server seed's hash is published before play so the seed can't be changed without detection.
A card game where you predict whether the next card will be higher or lower than the current one, building a multiplier with each correct call.
Also called hit frequency, this is the percentage of spins or rounds that produce a win. A higher hit rate means more frequent (though often smaller) payouts.
The built-in mathematical advantage the casino holds on a game, shown as a percentage. It's the inverse of RTP: a 3% house edge means a 97% RTP.
The online gambling industry as a whole, covering online casino games, slots, live dealer tables, and sports betting.
A side bet in blackjack offered when the dealer shows an Ace, paying 2:1 if the dealer has blackjack. It's generally considered poor value over time.
A large top prize. It can be a fixed amount, or a progressive jackpot that grows as players wager until someone wins it.
A roulette rule that returns half of an even-money bet when the ball lands on zero, lowering the house edge on those bets.
A network built on top of a blockchain to process transactions faster and more cheaply. MetaWin uses Layer 2 processing so crypto deposits settle almost instantly.
An instant crypto game where you set a target multiplier and win if the randomly generated result meets or exceeds it. Simple, fast, and provably fair.
Games streamed in real time with human dealers, letting you play classics like blackjack and roulette against a live table from wherever you are.
A real, human croupier who runs a live casino game over a video stream, dealing the cards or spinning the wheel in real time.
The largest amount you're allowed to wager on a single spin or round. Bonus play sometimes carries a separate, lower max-bet rule.
The largest payout a game can produce, usually expressed as a multiple of your stake (for example, 15,000x). It caps how much a single round can return.
A slot engine, licensed from Big Time Gaming, that changes the number of symbols on each reel every spin, creating up to hundreds of thousands of ways to win.
A cryptocurrency inspired by internet culture or trends. Several memecoins are supported as deposit options at MetaWin.
A popular Web3 wallet for storing crypto and connecting to sites. You can link MetaMask to MetaWin to deposit and start playing in seconds.
The smallest amount you're allowed to wager on a single spin or round of a game.
A payment service that lets you buy crypto with a debit card, Apple Pay, or Google Pay. It's the easiest way to top up your wallet if you don't already hold crypto.
A value that multiplies your win or bet, such as 2x or 100x. Multipliers appear in slot features, crash games, and bonus rounds to boost payouts.
A two-card total that usually wins automatically: 21 in blackjack, or 8 or 9 in baccarat.
Non-Fungible Token: a unique blockchain-based asset representing ownership of a specific item, such as digital art or a collectible.
A setup where you, not a third party, hold your crypto and its private keys. Connecting a Web3 wallet keeps you in control of your own funds.
A number that increases with each bet in a provably fair game, ensuring every round using the same seed pair produces a different, verifiable result.
The likelihood of an outcome and the payout attached to it. In sports betting, odds show both the probability of a result and how much a winning bet returns.
Data or transactions recorded directly on a blockchain. MetaWin's Originals use on-chain verification to prove that game outcomes are fair.
A service that converts traditional money into crypto (such as MoonPay) so you can fund a wallet with a card or bank payment.
The set patterns across the reels along which matching symbols must land to form a win. Some slots use fixed paylines; others use ways-to-win or cluster systems instead.
The in-game guide that shows symbol values, feature explanations, and payout rules. Always worth checking before you play a new slot.
A leading Web3 wallet built for the Solana ecosystem. It can be connected to MetaWin for fast crypto deposits.
A game where a ball drops through a pegged board into slots with different multipliers. Outcomes are random, and adjustable risk levels change the payout spread.
A fast, low-cost blockchain network compatible with Ethereum, supported as a deposit option at MetaWin.
A jackpot that grows every time a game is played without a win (sometimes across a whole network of games) until one player triggers the payout.
A system that lets players cryptographically verify a game's outcome was not manipulated. MetaWin's Originals use on-chain, provably fair technology.
The most common form of baccarat, where play follows fixed drawing rules and you simply bet on Player (Punto), Banker (Banco), or Tie.
The software that produces random, unpredictable results for casino games, ensuring every spin, card, or roll is independent and fair.
The vertical columns in a slot that spin and stop to display symbols. Most modern slots use five or six reels.
A feature that re-spins some or all of the reels, often holding certain symbols in place, to give you an extra chance to complete a win.
A table game where a ball lands in a numbered pocket on a spinning wheel. You bet on numbers, colours, or groups, with payouts scaled to the odds.
The theoretical percentage of all wagered money a game pays back over the long run. A 96% RTP means around $96 returned per $100 wagered across millions of rounds. It's an average, not a guarantee.
A special symbol that pays or triggers a feature (such as free spins) regardless of where it lands on the reels, rather than needing to sit on a payline.
A starting value fed into a game's random number generator to produce an outcome. In provably fair games, seeds can be revealed so players can verify a result wasn't altered.
A secret value generated by the casino, shown as a hash beforehand and revealed after play so the outcome can be checked. It works together with the client seed and nonce.
A single period of play. Setting a session bankroll and a time limit is a key part of playing responsibly.
An ancient three-dice game where you bet on the outcome of a roll, whether specific totals, combinations, or other patterns, each with its own payout.
An optional extra wager on a specific outcome (such as a pair or a particular card) placed alongside your main bet, usually with higher payouts and higher risk.
Self-executing code on a blockchain that runs automatically when set conditions are met, with no middleman. It powers DeFi and on-chain game verification.
A fast, low-cost blockchain and its cryptocurrency, SOL, supported as a deposit option at MetaWin.
In blackjack, dividing a starting pair into two separate hands, each with its own bet, when you're dealt two cards of equal value.
Placing wagers on sporting events. MetaWin's sportsbook covers major sports with a wide range of markets and odds.
A cryptocurrency pegged to a stable asset such as the US dollar (for example, USDT or USDC), which reduces price swings. Popular for deposits because the value stays steady.
The amount of money you wager on a single spin, hand, or round. Matching your stake size to your bankroll is central to good bankroll management.
Locking up crypto to help support a blockchain network, usually in exchange for rewards.
The largest stablecoin, pegged to the US dollar and widely supported for deposits because its value stays steady.
A digital asset issued on an existing blockchain, as opposed to a coin with its own chain. Many supported deposit assets are tokens.
A high-throughput blockchain network supported as a deposit option, popular for low-cost stablecoin transfers.
Another name for cascading reels: winning symbols are removed and new ones fall in, allowing consecutive wins from one spin. Also called an avalanche or cascade.
A US-dollar-pegged stablecoin supported for deposits as a low-volatility alternative to assets like BTC or ETH.
A measure of how much and how often a game pays, closely related to volatility. High-variance games pay less often but bigger; low-variance games pay smaller amounts more frequently.
A loyalty tier that offers better rewards (such as cashback, bonuses, and dedicated support) for regular players.
How risky a slot is. High-volatility slots have long dry spells broken by big wins; low-volatility slots pay smaller amounts more often. Also referred to as variance.
The number of times a bonus (or its winnings) must be wagered before it can be withdrawn. A 10x requirement on a $10 bonus means $100 in bets.
An open protocol that links hundreds of Web3 wallets to sites like MetaWin, letting you connect your wallet securely to deposit and play.
A payout system that rewards matching symbols on adjacent reels from the left in any position, rather than on fixed paylines. Common setups include 243 or 1,024 ways.
A self-custody crypto wallet (such as MetaMask, Phantom, or Coinbase Wallet) that you connect to MetaWin to deposit and play directly from your own funds.
A promotion offered to new players, such as bonus funds or free spins, usually subject to wagering requirements. MetaWin Casino offers prize funds instead of a traditional welcome bonus.
A slot symbol that substitutes for others to help complete winning combinations. Wilds can come with extras like multipliers or expanding behaviour.
Taking funds out of your account. At MetaWin, winnings are withdrawn back to your connected crypto wallet.
A token that represents another cryptocurrency on a different blockchain at a 1:1 value, letting assets move between networks.
Luke has been writing about gambling for 10+ years and has written for leading online publications. He enjoys a spin of the slot reels, but his passion is playing blackjack, roulette, and other classic table games. Luke loves playing the live tables of top online casinos, playing guitar during his downtime, and following Manchester United in the Premier League.
Ziv has been covering the iGaming industry for over 25 years, having held senior positions at casino technology companies. He is a slots aficionado who loves the overlap between technology and players, and he loves spending days in Las Vegas, tribal casinos, and other casino floors across the country.
