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iGaming Wiki

Plain definitions of the terms operators, suppliers and investors use, with the rules of the core casino games and the history behind today's market. Every entry links to the providers you can compare.

46Wiki entries
3Sections
16Supplier categories linked
24 Sept 2026Last updated

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The terms most supplier and operator conversations assume you already know.

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Business vocabulary, game rules and the history behind todayโ€™s market.

All terms Aโ€“Z

46 terms, alphabetically.

A1 term

  • AggregatorTerminology

    A game aggregator connects casino operators to many game studios through one integration, handling game delivery, wallet calls and reporting.

B5 terms

  • BaccaratGame guide

    Baccarat is a card game in which players bet on whether the Player or Banker hand finishes closer to nine. Fixed drawing rules decide everything after the bet.

  • BingoGame guide

    Bingo is a numbers game in which players mark numbers on a ticket as they are called, winning by completing a line, pattern or full house first.

  • Black Friday (2011)History & culture

    Black Friday, 15 April 2011: the US Department of Justice seized the domains of the biggest online poker sites serving Americans and indicted their founders.

  • BlackjackGame guide

    Blackjack, or 21, is a card game in which players try to beat the dealer by finishing closer to 21 without going over.

  • Bonus Buy (Feature Buy)Terminology

    A bonus buy lets a player pay a fixed multiple of their bet โ€” often 50x to 100x โ€” to enter a slot's bonus round immediately instead of waiting to trigger it.

C6 terms

  • Caribbean Stud PokerGame guide

    Caribbean Stud Poker is a five-card stud game played against the dealer, with an optional progressive jackpot side bet for the rarest hands.

  • Casino Hold'emGame guide

    Casino Hold'em is a house-banked version of Texas Hold'em in which each player plays one hand against the dealer rather than against other players.

  • Casino Streaming (Twitch)History & culture

    Casino streaming is the live broadcasting of slot and casino play on Twitch, Kick and YouTube, a marketing channel that grew fast and drew regulatory limits.

  • CrapsGame guide

    Craps is a dice game in which players bet on the outcome of rolls of two dice. Its Pass Line and Odds bets are among the best value in the casino.

  • Crash GamesTerminology

    Crash games are fast, simple casino games in which a multiplier rises from 1x until it randomly crashes; players win by cashing out before the crash.

  • Crypto CasinosHistory & culture

    Crypto casinos take deposits and pay winnings in cryptocurrency. They grew from Bitcoin dice sites in 2012 into a segment with its own games and trust model.

D1 term

  • Dragon TigerGame guide

    Dragon Tiger is a two-card game in which players bet on whether the Dragon or Tiger position gets the higher card. One card each decides the round.

E1 term

  • European RouletteGame guide

    European roulette uses a wheel with a single zero and 37 pockets, giving a house edge of 2.70% against 5.26% for the double-zero American wheel.

G2 terms

  • Geo-location & Geo-fencingTerminology

    Geo-location and geo-fencing are the checks that confirm where a player physically is, so an operator only accepts bets from jurisdictions where it is licensed.

  • GGR (Gross Gaming Revenue)Terminology

    Gross gaming revenue (GGR) is the total amount players stake minus the winnings paid back to them โ€” the operator's revenue before bonuses, taxes and costs.

H4 terms

  • Hit FrequencyTerminology

    Hit frequency is the percentage of game rounds that produce any win at all, regardless of size โ€” for example 25% means one spin in four pays something.

  • Hold PercentageTerminology

    Hold percentage is the share of total stakes an operator actually keeps over a period: GGR divided by turnover, the realised counterpart of house edge.

  • House EdgeTerminology

    House edge is the casino's built-in mathematical advantage on a game: the percentage of each bet it expects to keep, such as 2.7% on European roulette.

  • HTML5Terminology

    HTML5 is the browser technology that replaced Flash as the standard for building casino games, letting one game run on desktop and mobile without a plug-in.

I1 term

  • InterCasino (1996)History & culture

    InterCasino, launched in 1996 under an Antiguan licence, is widely cited as the first online casino to accept a real-money wager.

K2 terms

  • KenoGame guide

    Keno is a lottery-style game in which players pick numbers from 1 to 80 and are paid by a paytable according to how many of the 20 drawn numbers they match.

  • KYC (Know Your Customer)Terminology

    KYC is how an operator verifies a player's identity, age and address around sign-up, as gambling licences and anti-money-laundering rules require.

L2 terms

  • Lifetime Value (LTV)Terminology

    Lifetime value (LTV) is the total net revenue a player is expected to generate over their whole relationship with an operator. It sets acquisition budgets.

  • Live DealerTerminology

    A live dealer game is a casino table game run by a human dealer in a studio and streamed to players in real time, with bets placed through a digital interface.

M1 term

  • MicrogamingHistory & culture

    Microgaming, founded on the Isle of Man in 1994, was one of the first online casino software companies and built the Mega Moolah progressive jackpot network.

N1 term

  • NGR (Net Gaming Revenue)Terminology

    Net gaming revenue (NGR) is GGR minus bonuses, gaming taxes and agreed fees such as payment costs โ€” the figure affiliates and many partners are paid on.

P4 terms

  • Pai Gow PokerGame guide

    Pai Gow Poker is a table game in which players split seven cards into a five-card and a two-card hand, and must beat both of the dealer's hands to win.

  • PASPA Repeal (2018)History & culture

    The 2018 Supreme Court ruling in Murphy v. NCAA struck down PASPA, the federal ban on sports betting, letting each US state legalise and license it.

  • Progressive JackpotTerminology

    A progressive jackpot is a prize that grows with every bet on a game or network of games, fed by a small slice of each stake, until one player wins it.

  • Provably FairTerminology

    Provably fair is a cryptographic method, common in crypto casinos, that lets players verify after each round that the outcome was fixed before they bet.

R4 terms

  • Revenue Share (RevShare)Terminology

    Revenue share pays an affiliate or partner a percentage of the net revenue from the players they refer, for as long as those players stay active.

  • RNG (Random Number Generator)Terminology

    An RNG (random number generator) is the certified software that decides every outcome in an online casino game, producing results nobody can predict or alter.

  • Roulette (General)Game guide

    Roulette is a wheel game in which players bet on the pocket a ball will land in, choosing from single numbers, groups, colours and other outside bets.

  • RTP (Return to Player)Terminology

    RTP (return to player) is the share of all money wagered on a game that it pays back to players over the long run, expressed as a percentage such as 96%.

S1 term

  • Sic BoGame guide

    Sic Bo is a Chinese dice game played with three dice, with bets on totals, specific numbers and combinations, from 1:1 Big and Small to high-paying triples.

T5 terms

  • The Free Trade & Processing Act (1994)History & culture

    The Free Trade & Processing Act of 1994 let Antigua and Barbuda license online gambling businesses, creating the first legal home for internet casinos.

  • The Poker Boom (2003)History & culture

    The poker boom began in 2003 when amateur Chris Moneymaker won the World Series of Poker after qualifying online, sending millions of players to internet poker.

  • The Rise of MacauHistory & culture

    Macau grew from a single-operator casino enclave into the world's largest gambling market after its 2002 liberalisation, overtaking the Las Vegas Strip by 2006.

  • Three Card PokerGame guide

    Three Card Poker is a table game played against the dealer with three-card hands, combining an Ante/Play game with the separate Pair Plus bet.

  • Turnover (Handle)Terminology

    Turnover, or handle, is the total value of all bets placed over a period, before any winnings are paid out โ€” the measure of betting volume, not revenue.

U1 term

  • UIGEA (2006)History & culture

    UIGEA (2006) barred US banks and payment firms from processing payments for illegal online gambling, forcing most listed operators out of the US market.

V2 terms

  • Video PokerGame guide

    Video poker is a machine game based on five-card draw, paid from a paytable. Correct play decides the return, which is above 99% on some full-pay games.

  • Volatility (Variance)Terminology

    Volatility, or variance, is how a game spreads its wins at a given RTP: low volatility pays small amounts often, high volatility pays rarely but large.

W2 terms

  • Wagering RequirementTerminology

    A wagering requirement is how many times a bonus must be bet before winnings from it can be withdrawn, expressed as a multiplier such as 30x.

  • White LabelTerminology

    A white label casino is a ready-made online casino run on a provider's platform and licence, which the operator brands and markets as its own.

From the wiki to the market

The supplier categories wiki entries point to, with the providers listed in each.

About the wiki

What it covers and how it connects to the rest of iGaming Centre.

Three sections: terminology (the metrics, contract terms and technology used between operators and suppliers), game guides (rules, odds and house edge of the core casino games) and history & culture (the companies, laws and moments that shaped online gambling).

People working on the business side of iGaming: operators comparing suppliers, suppliers explaining their product, affiliates, investors and anyone new to the industry who meets a term in a contract, pitch deck or regulator notice.

Entries link to the supplier categories where the concept is bought and sold, and each term page lists providers from that category. A definition of game aggregation, for example, leads to the game aggregation providers in the directory.

No. Entries explain how a concept works in general. Licensing rules, fees and tax differ by jurisdiction; the licence guides cover those market by market, and a qualified adviser should confirm anything you rely on.

Every term page shows the date it was last updated, and the hub shows the most recent update across the wiki.

Yes. Use the "Suggest a term" form on this page and tell us what you expected to find.