What is an online casino
An online casino is the digital equivalent of a land-based casino, operating under a gaming licence in one or more jurisdictions. Customers register, deposit, and play casino games through the operator’s website or app. Games are delivered by licensed game providers and are subject to certification by accredited testing laboratories such as eCOGRA, GLI, or BMM. Outcomes are determined by certified random number generators for RNG products or by real dealers for live casino.
The category includes pure-play online operators and online divisions of multi-vertical companies. Most large operators run online casino alongside sportsbook and other verticals on a shared platform.
Standard product mix
The typical online casino lobby includes slots, table games (blackjack, roulette, baccarat, casino poker), live dealer rooms, instant win or arcade games, and increasingly crash and game-show formats. Slots represent the largest share of revenue at most operators, typically 60% to 80% of casino GGR. Live casino is the fastest-growing category and now represents a meaningful share of revenue at most operators.
Jackpot networks, promotional tournaments, and exclusive content commissioned from game providers are common differentiation strategies. The Gamblers Connect game provider directory tracks portfolio coverage for major providers.
Why online casino matters in B2B
Online casino is the largest single vertical in iGaming by revenue in most regulated markets. The unit economics are well understood: high-margin product, strong session frequency, measurable LTV. For platform vendors, casino capability is the foundation product that other verticals build on. For game providers, online casino is the primary distribution channel. For operators, casino is typically the most profitable vertical per active customer and the foundation of any multi-vertical strategy. Gamblers Connect covers online casino across operator reviews, game provider directories, and RGI scoring in the iHub framework.
Frequently asked questions about What Is an Online Casino?
Online casino products are house-banked games where the operator’s margin comes from the built-in house edge. Sportsbook products are event-based wagers where the operator manages risk through pricing and balance. Most modern operators run both on a shared platform.
In most jurisdictions, yes. Licensed online casinos operate under specific gaming licences that mandate KYC, AML, responsible gambling, payment controls, and game certification. The depth of regulation varies by market, with the UK, Sweden, and several European markets among the most demanding.
Through the built-in house edge of casino games. Over a large enough sample, the casino retains a small percentage of every wager, the house edge, with the rest paid back to customers as winnings. Average house edge across slots runs around 4%, varying by game.
The United Kingdom is the largest single regulated online casino market in Europe by GGR, with Italy, Germany, and Spain among the major continental markets. The US is now the fastest-growing market, with regulated iCasino expanding state by state.