Online Casino Glossary 2026

A promotional offer given to new players on their first deposit. Can be a percentage match (e.g. 100% up to €200) or a fixed amount. Subject to wagering requirements before withdrawal.

The number of times you must bet the bonus amount before you can withdraw your winnings. Example: a €100 bonus with a 35x wager means €3,500 in total bets is required. Typically between 20x and 50x.

A rare type of bonus that lets you withdraw winnings immediately, with no wagering requirements attached. Highly sought after because winnings are directly withdrawable.

Free spins on slot machines offered by casinos. Can come with a deposit, without a deposit, or as part of a bonus package. Winnings are usually subject to wagering requirements.

A refund of a percentage of your losses over a given period (usually weekly or monthly). For example, 10% cashback means you get back 10% of what you lost.

A code entered at deposit to unlock a specific bonus. Promo codes are often shared on affiliate sites or in casino marketing emails.

Synonym for wagering requirement. Refers to the number of times you must bet a bonus before withdrawal.

A bonus given simply for creating an account, no deposit required. Amounts are typically between €5 and €50, or a set of free spins. Wagering requirements are usually strict.

The theoretical percentage of total bets returned to players over the long run. Example: an RTP of 96% means the casino keeps 4% on average. The higher the RTP, the better for the player.

The casino's built-in mathematical advantage over the player, expressed as a percentage. The mirror image of RTP. Example: 96% RTP = 4% house edge. The lower the house edge, the better for the player.

A measure of how often and how large payouts are in a game. Low volatility = frequent but small wins. High volatility = rare but large wins. Medium volatility sits in between.

The most popular casino games. Reel-based machines with symbols; you win by lining up matching symbols on paylines. Available as classic, video, or progressive-jackpot slots.

Live casino games with real dealers filmed in a studio. Lets you play blackjack, roulette, baccarat and more in real time via video streaming — an experience close to a physical casino.

A prize pool that grows with every bet placed, until a player wins it. Can reach millions of euros. Progressive jackpots are often pooled across several casinos.

A card game where the goal is to reach 21, or as close as possible without going over, beating the dealer. One of the best-RTP games when played with optimal strategy (around 99%).

A casino game with a numbered wheel and a ball. Players bet on numbers, colors (red/black), or groups. Variants: European (37 numbers), American (38 numbers).

A simple card game where you bet on the player's hand, the banker's hand, or a tie. The goal is to have the hand closest to 9. Very popular in Asia and in high-end casinos.

An online casino format where a multiplier rises from 1x and can crash at any moment. You cash out before the crash to win your stake × the multiplier. Typical RTP is 97-99%. Aviator (Spribe), Chicken Road (InOut Games), Mines, Pilot Chicken and Plinko XY are the leading 2026 titles.

A cryptographic transparency standard used in modern crypto games. Each round's outcome is fixed BEFORE your bet by a verifiable cryptographic seed (Server Seed + Client Seed + Nonce). You can mathematically verify the casino didn't manipulate the result. Standard on Spribe, BGaming and InOut Games.

The act of leaving a crash game round to bank your winnings before the crash. The multiplier displayed at the moment of cash-out × your stake = your payout. An active player decision — what sets crash games apart from classic slots.

An option that lets you set an automatic cash-out at a target multiplier before the round starts. If the multiplier hits your target, the cash-out triggers automatically. Available on Aviator, Pilot Chicken and Mines.

The number displayed in real time on crash games, rising steadily from 1x until the crash. On Aviator, the multiplier can theoretically climb forever (community record 2,586,812x). On Chicken Road: the documented max is around 3,203,384x. The multiplier sets the final payout at cash-out.

A cryptographic value used to generate a verifiable random outcome. Made of three parts: Server Seed (casino side, hash revealed before the bet), Client Seed (player side, editable), and Nonce (round counter). Result = HMAC-SHA256(server_seed, client_seed + nonce).

The world's #1 reference crash game, developed by Spribe (released February 2019). Top-market 97% RTP, theoretically unlimited multiplier (community record 2,586,812x), Provably Fair, multi-bet (2 simultaneous bets). The most-played game on crypto casinos in 2026.

The ability to place 2 simultaneous bets on the same Aviator round, each with a different cash-out target. Enables hedging strategies (a conservative 1.5x bet plus a chasing 5-10x bet). Exclusive to the Spribe format among crash games.

A configurable crash game developed by Spribe. A 5x5 grid where the player chooses the number of mines (3 to 20). More mines mean more risk plus exponentially higher multipliers. Fixed 97% RTP regardless of the mine count. Strategic, unlike the passive Aviator.

A viral crash game developed by InOut Games (released April 2024). 98% RTP — the absolute top of the market across all casino games. Visual mechanic: a chicken dodges manholes (obstacles), with the multiplier rising for each obstacle avoided. Documented max around 3,203,384x.

A format inspired by Japanese pachinko — a ball drops through a triangle of pegs and lands in a payout slot. Plinko XY (BGaming) has a 99.16% RTP in max mode — the highest documented RTP on the market across all games. Not a classic crash game, but an instant cash-out format.

A mathematical concept applied to crash games. Probability of crashing before a target multiplier X = 1 - (RTP/X). Aviator example (97% RTP): crash before 2x = 51.5%, before 5x = 80.6%, before 10x = 90.3%. No strategy can improve EV beyond the fixed RTP.

The identity-verification process casinos require to secure accounts and comply with regulation. Usually needs a photo ID, proof of address, and sometimes proof of payment method.

Casinos that skip full identity verification, letting you play more anonymously. Often crypto casinos. Withdrawal limits are typically lower.

The smallest amount you can deposit at a casino. Usually between €10 and €20 depending on the casino and payment method.

The smallest amount you can withdraw. Usually between €20 and €50. Some casinos have no minimum at all.

How long it takes to receive your funds after a withdrawal is approved. Varies by method: e-wallets (24-48h), bank cards (3-5 days), crypto (instant to 24h), bank transfers (3-7 days).

A digital wallet for storing money online and making payments. Examples: PayPal, Skrill, Neteller. Advantages: fast withdrawals, security, ease of use.

Decentralized digital currency used for deposits and withdrawals. Examples: Bitcoin (BTC), Ethereum (ETH), Tether (USDT). Advantages: anonymity, speed, low fees, often no KYC.

Authorization issued by a regulator (MGA, Curacao, UKGC, etc.) allowing a casino to operate legally. Guarantees security, game fairness, and player protection.

Malta's gaming regulator, well regarded for its strict standards. Casinos holding an MGA license are considered highly trustworthy and secure.

An encryption protocol that secures data exchanged between your browser and the casino's server, shown by a padlock in the address bar. Essential for transaction security.

A random-number generator that ensures fairness and unpredictability in game results. Legitimate casinos use certified RNGs, regularly tested by independent labs.

An account that has completed the KYC (identity verification) process. Required to withdraw at most casinos. Can take anywhere from a few hours to a few days.

A loyalty program reserved for regular players. Perks: exclusive cashback, personalized bonuses, a dedicated account manager, priority withdrawals, and invitations to events.

The maximum amount you can deposit over a given period (daily, weekly, monthly). Adjustable in account settings for responsible gambling purposes.

The maximum amount you can withdraw over a given period. Varies with account verification level and VIP status. Can be raised after full verification.

The practice of gambling online in a controlled, mindful way. Includes setting deposit/time limits, recognizing warning signs of addiction, and using self-exclusion tools when needed.

A voluntary measure to ban yourself, temporarily or permanently, from a single casino or every casino in a jurisdiction. An important responsible-gambling tool.

A feature that lets you cap the time spent playing at a casino. Configurable in account settings to help control play.

A partnership between a site (like BetsRank) and a casino, where the site earns a commission for every player it refers. Does not affect the bonuses or terms offered to players.

The percentage of an affiliate site's visitors who sign up and deposit at a casino. A key performance indicator for affiliate sites.

A design approach where a site is optimized for mobile first, then adapted for desktop. Important because most players use their smartphones to play.

A downloadable app for iOS or Android that lets you play directly from your smartphone. Some casinos offer native apps, others rely on optimized web versions.