Types of Casino Games: A Complete Guide for Players and Operators

Modern aggregators can make tens of thousands of titles technically available, but an operator may activate only a market-specific subset in the customer-facing lobby. The commercial challenge is not merely acquiring content. It is deciding which games deserve visibility.

A large catalogue creates variety for customers, but it creates a product-management problem for operators. This guide explains how casino categories differ and how those differences should influence content selection, lobby placement, compliance, and commercial performance.

How Casino Games Are Classified

Most online casino content is delivered through either an RNG-based game or a live studio. Other models include peer-to-peer games, hybrid live/RNG products, virtual events, and skill-influenced games, which may require separate operational and regulatory treatment.

RNG games generate results through certified software rather than a live dealer. The supplier and operator still control matters such as the approved game version, limits, availability, configuration, and monitoring. Slots, video poker, digital table games, scratch cards, and crash games all use RNG. They run continuously and do not need streaming infrastructure.

Live dealer games put a real person in front of a camera. A trained dealer operates the game from a professional studio while the action streams to the player in real time. Live blackjack, live roulette, and game shows like Crazy Time fall into this category.

Live casino requires stable video delivery and can perform differently across device and network conditions. Operators should compare buffering, load time, session completion, GGR, and customer-risk data by country and connection type before setting lobby prominence.

Chance, Skill, and Everything Between

Some games are pure chance. Slots, keno, scratch cards. Nothing the player does changes the outcome.

Others respond to decisions. Blackjack played with appropriate basic strategy can produce a relatively low house edge under favourable rules. Players who make inconsistent decisions face a materially higher edge, although the exact figure depends on the table rules and the decisions made. Video poker rewards correct holds with RTPs that can top 99%.

Operators care about this distinction because it affects bonus economics. An experienced table game player clearing a wagering requirement at full contribution can produce a net cost. That is why most operators weight table games at 10% contribution against bonus playthrough, while slots count at 100%.

Slots

Casino is one of Europe's largest online gambling categories. EGBA member data for 2025 shows casino accounting for 48% of total online GGR, although the report does not provide a separate Europe-wide figure for slots. In individual markets, slots can represent a large majority of casino revenue. For example, Danish data cited by Houlihan Lokey indicates that slots generated approximately 78% of Denmark's online casino GGR in 2024. This should not be generalised to every European market.

Most new players start with slots. Most returning players come back to them. And most of the titles in any casino lobby fall into some flavour of slot.

Slot RTP varies by supplier, title, certified configuration, and target market. Operators should assess the exact version available in their catalogue rather than rely on a broad industry average.

Classic Slots, Video Slots, and Megaways

Classic slots are the 3-reel games that replicate old-school fruit machines. Cherries, bars, sevens. Minimal features, nostalgia-driven appeal. They have a loyal following in Germany, Austria, and parts of Eastern Europe where land-based nostalgia runs deep. Amatic and Amusnet (EGT Interactive) have built product lines around this aesthetic.

Video slots are where the volume sits. Five reels, multi-layered bonus rounds, narrative themes, branded IP. This is the format that drives player acquisition in many regulated markets. Pragmatic Play, Play'n GO, Hacksaw Gaming, and Push Gaming all operate in this space. Evolution's NetEnt brand remains a major presence.

Megaways slots use a variable reel mechanic where the number of symbols changes with every spin, creating up to 117,649 ways to win. Evolution's Big Time Gaming brand originated the format and licenses the mechanic to other studios. High volatility, high engagement, and a draw for experienced slot players who chase larger maximum payouts.

Progressive Jackpots

Progressive-jackpot games split return between the base game and the jackpot component. Part of each wager may contribute to the progressive prize, so the base game can return less than the combined advertised RTP even when the total theoretical RTP remains within the operator's normal range.

Operators should review both the base-game RTP and the jackpot contribution, together with eligibility rules and the combined theoretical RTP, before comparing expected margin with a standard slot.

Progressive products can drive acquisition through headline prizes, but their margin economics differ from standard slots. Operators should assess the combined theoretical RTP, jackpot contribution, supplier fees, and liability structure.

Buy-Bonus and High-Volatility Formats

Buy-bonus lets a player pay a lump sum, usually 50 to 100 times their stake, to skip directly into the bonus round. No waiting for scatter symbols. The format resonates with time-poor, higher-spend players. Studios like Hacksaw Gaming and Nolimit City have built followings around it.

But here is where operators need to be careful. In Great Britain, the Gambling Commission instructed operators to remove slot-style games that allowed customers to buy direct access to bonus features. The Commission found that the functionality raised serious responsible-product-design and transparency concerns under RTS requirements 3A and 14A.

Buy-bonus availability varies by jurisdiction and certified game configuration. Operators should verify the permitted version with local counsel, the regulator, and the game supplier before activation. A game that performs well in one market may be non-compliant in another.

Table Games

Table games can attract a distinct customer cohort, but their value should be measured through actual deposit, turnover, session, retention, and responsible-gambling data for the operator's market. Do not assume that every table game player has higher lifetime value or longer sessions. Measure it.

Blackjack carries a low theoretical edge under favourable rules when played with optimal basic strategy. Multiple variants exist: Classic, European, Atlantic City, Spanish 21. Each ruleset produces a different margin.

Roulette comes in two main versions online. European roulette has one zero and a 2.7% house edge. American roulette has two zeros and a 5.26% edge. European dominates online. Simple mechanics make roulette a strong entry point for new casino players.

Baccarat can be an important category in selected regulated APAC operations and for licensed brands serving relevant customer groups. Punto Banco is the standard variant. The banker bet carries a house edge of roughly 1.06% after commission. Its lobby placement should be determined by local law, product certification, customer demand, and market-level performance data.

Poker exists online in two distinct forms. Video poker is single-player, RNG-based, and rewards good strategy with RTPs that can top 99%. Casino poker variants (Caribbean Stud, Three Card, Casino Hold'em) are played against the house.

Why RNG Table Games Still Matter

RNG table games are a workhorse: less visually distinctive than live dealer, but continuously available, bandwidth-efficient, and operationally predictable. Operators should evaluate them through local demand, supplier cost, mobile performance, rules, RTP, and bonus contribution.

They also serve a practical bonus mechanics purpose. Operators often include RNG table games in wagering requirements at reduced contribution rates (10% versus 100% for slots), which gives players options without creating excessive playthrough costs.

Live Casino

Live casino has become an important part of many online casino portfolios, while in-play betting remains a major component of sportsbook activity. The two categories should be measured and discussed separately. Among EGBA member operators, in-play betting accounted for 37% of sports-betting GGR in 2025. A comparable Europe-wide figure for live casino should only be used if a clearly defined casino dataset is available.

Live Table Games

Live blackjack, live roulette, live baccarat. Streamed from dedicated studios by professional dealers. Evolution is one of the largest and most established global live-casino providers, with hundreds of operator customers and more than 2,000 live tables and game-show environments across its network. Other studios worth noting: Pragmatic Play Live, Authentic Gaming, Ezugi, Vivo Gaming, and Digitain group brand Imagine Live.

Live casino's commercial contribution should be assessed through market-specific participation, GGR, supplier cost, repeat use, streaming performance, and player-protection indicators. Longer sessions and higher deposits are not unqualified success metrics. They should be assessed alongside customer-risk data.

Game Shows and Hybrid Formats

Live game shows combine presenter-led streaming with wheel, multiplier, and bonus mechanics. They can appeal to customers who prefer visually accessible formats over traditional table-game presentation, but audience composition should be verified by market. Evolution built the category with titles like Crazy Time, Dream Catcher, Monopoly Live, and Lightning Roulette.

Game shows function as a bridge between the slots audience and the live casino vertical. One thing to budget for: game shows tend to feature heavily in promotional campaigns, which can increase bonus costs if terms are not structured carefully.

Crash Games

Crash games have become a common category in many online casino catalogues. Operators should assess their local performance using title-level turnover, GGR, repeat use, session behaviour, and customer-risk indicators rather than relying on unsourced global growth rates.

The underlying crash point is generated independently of the player. The customer cannot change that outcome, but the decision about when to cash out determines the payout received before the crash occurs.

Core titles: Aviator (Spribe), Spaceman (Pragmatic Play), JetX (Smartsoft), Space XY (BGaming). Crash games generally use short, repeated rounds, although the exact cycle depends on the title and market configuration. Operators must assess game-speed rules, financial limits, customer-interaction controls, and indicators of repetitive or escalating play in each jurisdiction.

Crash games are strongly associated with mobile-first, short-form play. Operators should assess their audience through verified market data and apply enhanced monitoring where rapid, repetitive play may increase the risk of gambling-related harm.

Provably Fair

Most crash games use provably fair technology: cryptographic systems that let the player verify after each round that the outcome was genuinely random and was not altered by the operator. This transparency appeals to crypto-native audiences, where trust in centralised platforms tends to be lower.

Provably fair functionality does not remove laboratory or regulator requirements. The operator must still confirm that the game, cryptographic mechanism, and software version comply with the technical standards of each target jurisdiction.

Specialty Games

Specialty categories can fill scheduling gaps, serve specific local audiences, and broaden the product mix beyond slots and live casino. Their value depends on market demand, device conditions, and the operator's wider acquisition strategy.

Virtual sports simulate football, horse racing, and greyhound events every few minutes, continuously. They serve sports betting audiences between live fixtures or during the off-season. Digitain's published virtual-sports materials cite more than 20,000 daily events across 150+ betting markets.

Bingo performs better than most people expect, particularly in the UK, Nordics, and Latin America. Shared draws create community. Regular schedules create habit. It is one of the few casino categories that generates genuine habitual repeat visits.

Keno is a fast-draw lottery-style game. Low complexity, low stakes, and appealing to casual players who want entertainment without learning rules.

Scratch cards are digital versions of the physical product. Quick sessions, low revenue per player, but useful for cross-selling and promotional campaigns.

Fishing and arcade-style games have established audiences in parts of Asia, but operators should offer them only where online casino activity, game certification, and customer acquisition are lawful. Market selection should follow a current legal and product-performance assessment.

Building a Game Library That Performs

Understanding the categories is step one. The harder question is deciding how much of each to stock, for which markets, and from which providers.

Allocation by Market

Product allocation should be decided at country and licence level. The operator should combine local performance data with regulation, supplier certification, device usage, payment behaviour, and responsible-gambling requirements.

Do not allocate casino content by continent-wide percentages. For each licensed market, review category share of GGR, category share of active customers, lobby impressions and click-through rate, first-deposit and first-game behaviour, device and bandwidth performance, actual RTP and volatility, supplier and promotional cost, and responsible-gambling indicators.

The lobby should allocate featured positions and promotional visibility according to current market-level performance rather than a generic regional template.

Choosing Providers

Select the smallest supplier set that provides the required market coverage, category depth, localisation, and commercial differentiation. Expand the active supplier list only when new content adds measurable value.

When evaluating a provider, the things that actually matter: RTP range, volatility spread, mobile performance, jurisdictional certification, bonus and free spin API compatibility, and localisation support (languages, currencies, culturally relevant themes).

Core suppliers should be selected according to the operator's target markets and category needs. The review may include major multi-category groups such as Evolution (including its NetEnt and Big Time Gaming brands), established slot suppliers such as Pragmatic Play, Play'n GO, and Hacksaw Gaming, live-casino specialists including Digitain group brand Imagine Live, and regional or niche suppliers that provide genuine market differentiation. Category specialists include independent suppliers such as Smartsoft, while Digitain group brand Galaxsys provides its own portfolio of crash, slot, and fast-game content.

Group relationships should be disclosed. Evolution owns NetEnt and Big Time Gaming. Digitain's group includes Galaxsys and Imagine Live.

What a Game Aggregator Does

Without aggregation, each supplier may require a separate technical integration and maintenance workflow. An aggregator centralises much of the delivery, wallet, reporting, and update process through one API. The operator may still need to approve commercial terms, verify supplier status, maintain game-certification evidence, and configure jurisdiction-specific restrictions.

When a provider releases a new title, the aggregator can make it technically available without a new provider integration. The operator should still review certification, market eligibility, game information, RTP, volatility, and promotional suitability before publishing it to the lobby.

Access to a large supplier catalogue does not mean that every provider or title should appear in the live lobby. The aggregator supplies optionality. The operator controls which certified games are activated, promoted, and made available in each market. A well-managed casino may connect to hundreds of providers while publishing a much smaller, performance-led subset for each brand and jurisdiction.

Digitain's casino aggregation technology provides access to a broad portfolio of third-party games through a single API. The final lobby should contain a selected, market-appropriate subset. Operators control which certified games go live in each market.

For operators who want the full stack, the turnkey solution brings sportsbook, casino, virtual sports, payments, affiliate management and CRM together in one platform. For operators who already have a platform and want to add casino content, the casino API integration plugs in without replacing what you have built.

Digitain holds licences and certifications across Malta (MGA), the UK (UKGC), Romania, Greece, Belgium, Peru, Brazil, and Curacao. You can see the full list on our licences and certifications page. If you are evaluating aggregators and want to see how ours works in practice, talk to our team.