What Is iGaming? A Complete Guide

iGaming is the business of online gambling: sports betting, casino, poker, bingo, lottery and their newer relatives, delivered over the internet to a phone or a screen, and the whole industry of operators, suppliers, regulators, affiliates and service companies behind it. This is the complete introduction: what the term covers, what the products are, how the industry is structured, how the money works, why regulation defines everything, what responsible gambling means, how big the market is and where it is going, the vocabulary, and where to go next.

What iGaming actually means

The word is industry shorthand for internet gambling in all its forms. In some usage it means online casino specifically, as distinct from sports betting (the US regulatory term "iGaming" means online casino); in general usage, and on this site, it means the whole of online gambling. It is distinct from video gaming, though the two borrow from each other, and from lotteries run offline, though most lotteries now sell online.

The products

Sports betting. Fixed-odds bets on sporting events: match results, handicaps, totals, player props, accumulators and same-game parlays, pre-match and in-play. The largest product by turnover in most markets, and the one that opens most new markets. Exchanges (customers betting against each other) and pools (stakes shared among winners) are variants; prediction markets are the newest relative.

Casino. Slots (the largest casino product by revenue), table games (roulette, blackjack, baccarat) as random number generator games, and live casino: real dealers at real tables streamed to players, the fastest-growing casino segment.

Poker. Players against each other, the operator taking a rake. Once the industry's glamour product, now a smaller share, dependent on liquidity.

Bingo, lottery and instant win. Online versions of the oldest gambling products, with deep followings in particular markets.

Newer categories. Crash games and other simple, fast formats popularised by crypto casinos; virtual sports; esports betting; fantasy sports; sweepstakes casinos and social casino products that sit at the edge of the definition.

The glossary defines each product and the learning hub has courses on most.

How the industry is structured

Operators hold the consumer licences and run the brands players use. From global groups with dozens of brands to national champions to single-market start-ups.

Suppliers sell to operators: platform providers (the account, wallet and management systems), sportsbook suppliers (pricing, trading and the betting engine), game studios (slots and table games, sold on revenue share), live casino studios, aggregators (one integration to many studios), data companies (official sports data, odds feeds, integrity monitoring), payment providers, verification and compliance vendors, and hosting and security.

Affiliates send customers to operators for commission through comparison sites, content, streams and social media.

Regulators license, supervise and enforce, jurisdiction by jurisdiction; testing houses certify games and platforms; industry bodies represent operators and suppliers; dispute bodies resolve complaints.

Media, events and services: trade publications, conferences, consultancies, law firms, recruiters.

The directory lists more than 700 of these companies by sector and region; Top iGaming Companies 2026 maps the leaders in each layer.

How the money works

Gambling products are priced so the house keeps a share over time: the margin in sports odds, the house edge in casino games, the rake in poker. That share is small per bet and large in aggregate. The industry measures it as handle (stakes), gross gaming revenue (stakes minus winnings) and net gaming revenue (after bonuses and tax), and spends it on gaming tax, marketing (the largest discretionary cost), content and data, payments, technology and compliance. Suppliers earn a slice of many operators' revenue; affiliates earn commission on the customers they send. How iGaming Companies Make Money follows the money in detail.

Regulation is the defining force

Gambling is regulated at the point of consumption: the customer's jurisdiction decides what may be offered, by whom, at what tax, with what protections. Markets are prohibited, monopolised or licensed, and they move toward licensing, usually after a grey period served from offshore. A licence is a bundle of continuing obligations: verify customers, prevent money laundering, protect players, market responsibly, certify products, protect funds, report, pay. Regulation changes every year and almost always toward more protection and higher cost. How iGaming Regulation Works and the regulatory map are the next reads.

Responsible gambling

A minority of people who gamble are harmed by it, seriously. The industry's licence to operate depends on how it deals with that, and the regulatory trend of the last decade has been from tools the customer chooses (limits, time-outs, self-exclusion) to duties the operator owes (monitoring for harm, intervening, checking affordability, suppressing marketing to those at risk). Every role in the industry touches it; every person entering the industry should understand it. Responsible Gambling Tools Explained and the Responsible Gambling course go further.

The size and shape of the market

Global online gambling revenue is in the low hundreds of billions of dollars a year and growing, driven by new regulated markets (the US states since 2018, Brazil since 2025, Ontario, and a run of Latin American, African and Asian markets), by the shift from retail to online in mature markets, and by product growth in live casino, in-play betting and parlays. Europe is the largest regulated region; the US is the fastest-growing large market; Asia is the largest by demand and mostly unregulated; Latin America and Africa are the frontiers. The listed companies are tracked on the iGT 25 index; the private giants and the crypto-first operators are large and opaque.

The structural trends: consolidation (scale wins), regulation tightening everywhere, tax rising, advertising restricted, the US maturing, Latin America opening, prediction markets and sweepstakes testing the boundaries, and AI reaching pricing, protection and operations.

The language you will hear

GGR and NGR (gross and net gaming revenue), hold (margin achieved), RTP (return to player, the share of stakes a game pays back), overround or vig (the bookmaker's margin), KYC and AML (customer verification and anti-money laundering), PAM (player account management platform), B2B and B2C (supplier and operator), CPA and revenue share (affiliate deals), channelisation (share of the market that is licensed), point of consumption, grey market, self-exclusion, affordability, live dealer, bet builder, in-play. The glossary has 400 more.

Where to go next

For the products: Betting Odds Explained, How Online Slots Work, Live Casino Explained. For the business: How iGaming Companies Make Money, iGaming KPIs Explained. For regulation: How iGaming Regulation Works. For a career: How to Build a Career in iGaming. For structured learning: the learning hub, starting with iGaming Basics.

Frequently asked questions

Is iGaming the same as online casino? In US regulatory usage, yes; in general usage and on this site, iGaming means all online gambling including sports betting.

Is iGaming legal? It depends on the jurisdiction. Most of Europe, North America and Australia license it; large parts of Asia and the Middle East prohibit it; many markets are in transition.

How big is the industry? Global online gambling revenue is in the low hundreds of billions of dollars a year.

Who are the biggest companies? Flutter, DraftKings, Entain and Evolution among listed companies; bet365 among private ones. Top iGaming Companies 2026 has the map.

Is iGaming a good career? It is large, well paid, technical and international, with real responsibilities. How to Build a Career in iGaming covers it.

Related on iGaming Times

The learning hub turns this introduction into courses; the glossary defines the terms; the directory lists the companies; the regulatory map covers every jurisdiction; and the news reports the industry daily.

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Regulation, tax and market figures move quickly, sometimes mid-year. Where this guide gives a number, treat it as a starting point and confirm the current position with the named primary source before you rely on it.