How live casino games work: the technology behind the stream

A live casino game is a strange hybrid. The cards are real, the dealer is a real person standing at a real table, and the wheel is a physical wheel spun by a human hand. But the whole thing reaches you as a video stream with a betting interface layered on top, your money exists as numbers in an account, and a piece of software has to know, within a second or two, exactly which card just came out of the shoe.

That last part is where the interesting engineering lives. This guide covers how the studios are built, how physical game results become digital data, why the fairness question is answered differently for live games than for RNG games, what happens when the technology fails mid-hand, and how to tell a professionally run live operation from a cheap one.

If you want the background on how software-driven casino games generate results, read our guide to how online casino RNGs work first. This article covers the games where no RNG decides the outcome.

Key takeaways

• Live casino outcomes come from physical randomness: real cards, real wheels, real dice. Software captures and transmits the result but does not generate it.
• Card recognition uses barcodes or optical scanning built into the dealing shoe. Roulette results are captured by wheel sensors and camera tracking.
• The betting layer and the video layer are separate systems synchronised by the Game Control Unit (GCU), a small device attached to every table.
• Live games run under the same licensing and lab-testing regime as RNG games, but the testing focuses on equipment integrity and procedures instead of algorithm statistics.
• Live game RTP is determined by the game rules (deck count, payout tables, side bets), exactly as in a land-based casino. Blackjack with standard rules runs above 99% with correct play; game shows can run from 95 to 96.5%.
• The major studio operators are Evolution, Pragmatic Play Live, Playtech Live and Stakelogic Live. A handful of studios supply live games to hundreds of casino brands.
• Latency between the physical event and your screen is typically 1 to 3 seconds. Betting windows are timed so that no bet can be placed after the outcome is determined.
• Dealer errors and equipment failures are handled by documented procedures: hands are voided and refunded rather than adjudicated in the operator's favour.

Contents

1. What makes a game "live"
2. Inside a live casino studio
3. How the software knows which card was dealt
4. The Game Control Unit: the box that runs the table
5. The stream: latency, encoding and the betting window
6. Where the randomness comes from
7. Live casino RTP: how the numbers compare
8. Game shows: where live casino stops being casino
9. How live games are regulated and tested
10. What happens when something goes wrong
11. Can live casino games be rigged?
12. FAQ

What makes a game "live"

The defining feature of a live casino game is that the outcome is produced by a physical process rather than a software algorithm. In RNG blackjack, a pseudorandom number generator selects your card from a virtual shoe. In live blackjack, a dealer pulls a physical card from a physical shoe, and the software's only job is to read it and update the game state.

This puts live games closer to a land-based casino than to an online slot, with one architectural difference: everything the dealer does must be converted into structured data in real time, because your bets, balances and payouts are handled by software that needs to know the game state precisely.

A live game is therefore three synchronised systems:

1. The physical game: table, cards, wheel, dice, dealer, studio.
2. The data layer: sensors and recognition systems converting physical events into game data.
3. The presentation layer: video stream plus the betting interface rendered on your device.

When you tap "hit" in live blackjack, you are not interacting with the video. You are sending a command to the data layer, which displays your decision to the dealer on their monitor, and the dealer acts on it physically. The video is how you watch it happen. The data layer is where the game actually runs.

Inside a live casino studio

Live games are broadcast from dedicated studio facilities, most of them purpose-built. Evolution alone operates studios in Latvia, Malta, Georgia, Canada, the US (New Jersey, Pennsylvania, Michigan), Armenia and several other locations. A large studio complex runs hundreds of tables around the clock in shifts.

A single table setup includes:

• The table itself, built to broadcast specifications: matte surfaces to avoid glare, colour schemes chosen for chroma accuracy on camera, betting grids sized for overhead shots.
• Multiple cameras per table, typically 2 to 4. A wide shot of dealer and table, a close-up of the card area or wheel, and often an overhead. Roulette tables usually include a dedicated wheel camera with a slow-motion replay feed.
• Lighting rigs calibrated for consistent colour reproduction, because the card recognition systems and the video encoding both depend on stable lighting.
• The dealer's monitor, a screen facing the dealer showing the game state, active players, chat messages and any decisions waiting on players. This is how the dealer knows you clicked "double down."
• The Game Control Unit, covered in its own section below.

Dealers work regulated shifts, typically rotating between tables every 30 to 90 minutes to maintain concentration. They are trained on game procedures, dealing mechanics (card handling is precise, because sloppy dealing breaks the scanning), and presentation. In game show formats, the role is closer to a TV host than a croupier.

Studios also maintain a pit-boss equivalent: shift managers monitoring multiple tables via the video feeds and game data, watching for dealer errors, equipment problems and anything anomalous in betting patterns.

One detail players rarely consider: the studio floor is a broadcast environment. Multiple tables operate metres apart, which is why you occasionally hear a neighbouring dealer or see movement in the background. Some operators lean into this and shoot wide to show the studio scale. Others use enclosed sets per table.

How the software knows which card was dealt

This is the core technical problem of live casino, and there are two production-grade solutions.

Barcode-inset cards. Most large studios use special playing cards with a machine-readable code printed along the edge, similar in principle to the security strip on banknotes. The dealing shoe contains a scanner that reads the code as each card is drawn. Recognition is effectively instantaneous and error rates are near zero, because the system reads a code designed for machines rather than interpreting an image.

Optical character recognition (OCR). The alternative approach uses cameras and computer vision to read standard card faces as they are dealt. Modern implementations use trained image-recognition models rather than classical OCR, and they run at high accuracy under studio lighting. OCR is more flexible (no special cards needed) but marginally more error-prone, which is why the scanning-shoe approach dominates at scale.

For roulette, the result capture works differently:

• Sensor-equipped wheels. The wheel rim contains sensors that detect ball position at rest, plus rotation encoders tracking wheel speed and direction.
• Camera-based tracking. Overhead cameras track the ball optically, confirming the sensor reading. The two systems cross-check each other.
• The winning number is determined by the physical position of the ball. The sensors report it. If sensor and camera readings disagree, the round is flagged for manual confirmation, and the physical position on the wheel is authoritative.

For dice games (Sic Bo, Craps variants, Lightning Dice), the dice are typically oversized, machine-tumbled in a transparent shaker or dropped through a tower, and read by cameras positioned to see all faces at rest.

In every case the principle is the same: the physical object determines the outcome, the recognition layer reports it, and any ambiguity is resolved by looking at the physical object, not the data.

The Game Control Unit: the box that runs the table

Every live table has a Game Control Unit attached, usually a shoebox-sized device mounted under or beside the table. The GCU is the least visible and most important piece of equipment in the studio.

Its jobs:

• Encode the video. The GCU takes the camera feeds and encodes them for streaming in real time.
• Embed the game data. Card values, wheel results and game state changes are synchronised with the video stream, so that the interface overlay on your screen (your cards, the winning number highlight, payout animations) matches what the video shows.
• Enforce game flow. The GCU tracks the state machine of the game: betting open, betting closed, cards dealt, decisions pending, round resolved. The betting window closes at the GCU level, which is what makes late betting technically impossible rather than merely against the rules.
• Log everything. Every event at the table, with timestamps, is recorded. This log is what gets pulled when a player disputes a hand or a regulator audits a session.

If the GCU fails, the table goes down. The stream stops, open bets on the interrupted round are voided and refunded, and the table returns when the unit is replaced or restarted. This fail-safe behaviour (void and refund rather than reconstruct) is a regulatory requirement in most licensed jurisdictions.

The stream: latency, encoding and the betting window

The video itself is a live encode delivered over adaptive streaming protocols. Two properties matter for the game:

Latency. The delay between the physical event and your screen is typically 1 to 3 seconds with modern low-latency streaming, though it can stretch on poor connections. This is why the betting window is structured the way it is: bets close before the outcome-generating event begins, with margin. In roulette, betting closes shortly after the ball is launched, at a point where the outcome is not yet determined and cannot be usefully predicted. In card games, betting closes before the first card of the round is drawn.

The sequencing means stream delay cannot be exploited. By the time you see anything informative, the data layer closed your betting opportunity seconds ago. A player with a faster stream sees the result sooner but can do nothing with it.

Adaptive quality. The stream adjusts resolution to your bandwidth. The game data channel is separate from the video and much lighter, so on a bad connection you may get a pixelated dealer but your bets, balance and results remain exact. This separation is deliberate: degrading video is acceptable, degrading game data is not.

Player interaction flows the other way over the same data channel: your bets and decisions go to the game server, appear on the dealer's monitor, and the dealer responds physically. Chat messages travel the same path, which is why dealers respond to chat with a short delay.

Where the randomness comes from

In RNG games, fairness reduces to a statistical question about an algorithm. In live games, fairness reduces to the same question casinos have dealt with for two centuries: is the physical equipment unbiased and are the procedures sound?

Cards. Randomness comes from shuffling. Studios use a combination of machine shuffling and manual procedures. A typical card-game operation runs pre-shuffled deck sets prepared off-table: decks are shuffled (usually by certified shuffling machines, sometimes with a manual shuffle stage), sealed, logged, and delivered to tables in batches. The shoe in play is swapped for a fresh sealed set at defined intervals or at the cut card. Used sets are retired and periodically destroyed. The chain of custody, from shuffle room to table, is procedurally controlled and logged, because a compromised deck order is the main theoretical attack on a card game.

Wheels. Roulette wheels are precision equipment maintained on inspection schedules. Bias (a wheel that favours certain pockets due to wear or manufacturing tolerance) is the classic physical vulnerability, and it is managed the same way land-based casinos manage it: regular calibration, statistical monitoring of results per wheel, and rotation or replacement of equipment. A studio has an advantage over a land-based casino here, because every spin of every wheel is automatically logged, making statistical drift visible quickly.

Dice. Machine tumbling or drop towers remove the human throw from the equation, plus regular replacement of the dice themselves.

The important structural point: no software is generating outcomes, so there is no algorithm to compromise. The attack surface is physical and procedural, which is a domain where the countermeasures are old, well understood and boring. Boring is what you want.

Live casino RTP: how the numbers compare

Live game RTP is fixed by the rules of the game, exactly as in a land-based casino. There are no RTP variants to select, no configurable math models. If the blackjack table uses eight decks, dealer stands on soft 17, and blackjack pays 3:2, the RTP follows from those rules and nothing else.

Representative figures:

Three observations worth making:

Rule variations matter more than in RNG games. Because there are no RTP variants, the operator's lever is table rules. A blackjack table paying 6:5 on blackjack instead of 3:2 costs the player roughly 1.4 percentage points of RTP. Checking the table rules before sitting down is the live casino equivalent of checking the deployed RTP variant in a slot.

Side bets are where the house edge hides. The main bets in live blackjack and baccarat are among the best odds in any casino format. The side bets bolted onto those same tables run house edges 5 to 15 times larger. The table looks like one game; mathematically it is a high-RTP game with several low-RTP games attached.

"Lightning" style multiplier variants fund the multipliers from the paytable. Lightning Roulette pays 29:1 on straight-up wins instead of 35:1, and uses the difference to fund the random multipliers. The overall RTP is comparable, but the distribution shifts toward high-variance outcomes. It is the live equivalent of moving from a low-variance to a high-variance slot at similar RTP, a trade-off covered in detail in our RTP guide.

Game shows: where live casino stops being casino

The fastest-growing category of live content is not blackjack or roulette but game shows: Crazy Time, Monopoly Live, Funky Time, Sweet Bonanza CandyLand and their competitors. These deserve separate treatment because they are structurally different.

A live game show is built around a money wheel (a large vertical wheel with weighted segments) plus bonus rounds that mix physical props with rendered graphics. In Crazy Time's bonus games, the physical studio hands over to augmented-reality environments where the outcome is driven by a combination of physical events (a puck drop, a wheel spin) and RNG-determined multipliers layered on top.

That hybrid matters for understanding fairness: the segment the wheel lands on is physical, but the multipliers attached to segments in some rounds are generated by a certified RNG before the spin. Game shows are therefore certified under both regimes, equipment and procedures for the physical part, algorithm testing for the RNG part.

The RTP structure also differs by bet. In Crazy Time, each betting option (the numbers, each bonus game) carries its own RTP, published per bet in the game rules, typically ranging from about 94.4% to 96.1%. The often-quoted single RTP figure is an average across a modelled bet distribution, which makes it less informative than the per-bet figures.

From a player-math perspective, game shows sit at the high-variance, entertainment-forward end of live content: frequent small results, rare large multiplier events, and a house edge meaningfully larger than the classic table games broadcast from the same studios.

How live games are regulated and tested

Live casino falls under the same licensing structure as the rest of online gambling: the studio operator holds licences in the jurisdictions it serves, and the games are certified by independent test labs (GLI, BMM, eCOGRA, iTech Labs). What changes is what gets tested.

For an RNG game, the lab tests the algorithm's statistical output. For a live game, certification covers:

• Equipment integrity. Shuffling machines, dealing shoes, wheels and dice are tested and approved as devices. Card scanning accuracy is verified.
• Procedural review. Deck preparation and custody chains, dealer procedures, error-handling rules, betting-window enforcement.
• The software around the game. Bet acceptance, settlement math, payout tables, the GCU's game-state logic, and the audit logging. The paytable math is verified the same way an RNG paytable is: the stated RTP must follow from the rules.
• The RNG components, where they exist (game-show multipliers, automated shuffles), tested under the standard RNG methodology.
• Ongoing monitoring. Result logs per table and per wheel are subject to statistical review, both by the operator's compliance function and by regulators on request.

Studio jurisdictions add a layer: a studio physically located in Malta, Latvia or New Jersey operates under the local regulator's technical standards for live studios, which cover surveillance requirements, recording retention (every table is recorded continuously and the footage retained for a defined period), and staff licensing. Dealers in some jurisdictions hold individual licences, the same as land-based casino staff.

For the player, the practical checks are the same as for any online game: a real licence from a recognised regulator, games supplied by a named major studio, and certification references that can be verified with the testing lab.

What happens when something goes wrong

Live games fail in ways RNG games cannot: a dealer misdeals, a card sticks in the shoe, a scanner misreads, a ball bounces out of the wheel, a stream dies mid-hand. The handling of these failures is specified in the game rules and licensing conditions, and it follows one principle: when a round cannot be completed correctly, it is voided and all bets are returned.

Typical cases:

• Misdeal (card exposed early, wrong number of cards, dealing order error). The round is voided, bets refunded, the shoe may be replaced depending on procedure.
• Recognition error (scanner reads a card wrong). The video record is authoritative for what physically happened. Shift managers can correct the game state to match the physical reality, or void the round if correction is not possible cleanly.
• Ball out of wheel / foreign object / wheel fault. No spin. Round voided.
• Stream or platform failure mid-round. If the outcome was already determined before the failure, the round settles normally and the result appears in your history and balance even if you never saw it. If the failure interrupted the round before the outcome, the round is voided and refunded. Your bet is never abandoned in an indeterminate state.
• Player disconnection. In decision games like blackjack, a disconnected player's hand is played out by a default rule stated in the game rules (typically: stand on any made hand, or basic-strategy autoplay, depending on the studio). Your money is not forfeited for a dropped connection.

Every table is filmed continuously from multiple angles and every game event is logged by the GCU with timestamps. Disputes are resolved against that record. This is worth knowing as a player: if you believe a hand was mishandled, the operator can pull synchronized video and data logs for the exact round, and licensed operators are required to do so on complaint.

Can live casino games be rigged?

The honest answer requires splitting the question, the same way we did for RNG games.

Can the dealer manipulate outcomes? Sleight of hand against a scanning shoe, four cameras, continuous recording and statistical monitoring of table results is a poor career bet. Card handling procedures (cards drawn flat from the shoe, specific placement motions) are designed to make manipulation visible on camera. The realistic dealer risk is error, not fraud, and errors void rounds rather than settle them.

Can the studio operator rig the games? The studio's business model argues against it more strongly than any technical control. Evolution supplies live games to hundreds of casino brands; its entire enterprise value rests on those brands trusting the game integrity. A single substantiated rigging incident would be existential. Combine that with continuous recording, regulator access to logs and footage, per-wheel statistical monitoring, and device certification, and the operator-level rigging scenario requires a conspiracy across surveillance, compliance, engineering and regulators simultaneously.

Can the casino brand you play at rig the games? No, structurally. The casino brand embeds the studio's game; it has no access to the game infrastructure at all. This is the same separation that exists for RNG games between operator and provider, and it is stronger in live because the "provider" side includes physical premises the brand has never entered.

What about unlicensed live casinos? Here the picture changes, as always. An unlicensed site can restream, imitate or fabricate live content, and there have been documented cases of fake "live" games using pre-recorded loops or actors with predetermined outcomes at black-market sites. Every structural protection described in this article depends on the licence and the named studio. A live video of a dealer proves nothing by itself; the licence and the studio brand are what carry the weight.

The realistic risks for players are more mundane: side bets with poor odds presented as part of the main game, 6:5 blackjack tables, and betting-behaviour mistakes that live formats encourage, like chasing bonus rounds in game shows. The math risks, not the integrity risks.

Frequently asked questions

Are live dealer games actually live?

At licensed operators, yes. The games are broadcast in real time from studios, the dealers are physically present, and the timestamped game logs, continuous recording and latency behaviour all reflect live transmission. Pre-recorded or fabricated "live" content has only been documented at unlicensed black-market sites, which is one of several reasons the licence matters more than the video looks.

How does the casino know which card was dealt?

The dealing shoe contains a scanner that reads a machine-readable code printed on each card as it is drawn. Some studios use camera-based optical recognition of standard cards instead. For roulette, sensors in the wheel and overhead camera tracking identify the winning pocket. The physical object always determines the outcome; the recognition system only reports it.

Is live casino RTP better than slots?

Generally yes, for the classic table games. Live blackjack with standard rules played with basic strategy runs above 99% RTP, live baccarat main bets near 98.9%, European roulette 97.3%. Most slots run 94 to 97%. Live game show formats sit lower, roughly 94.4 to 96.5% depending on the bet. Side bets on live tables run substantially lower and are the main exception to live casino's favourable math.

Why do live games have betting time limits?

The betting window is enforced by the Game Control Unit and closes before the outcome-generating event: before the first card is drawn, or shortly after the roulette ball is launched while the result is still undetermined. This sequencing, rather than the countdown itself, is what makes it impossible to use stream delay or late information to place an informed bet.

What happens if my internet drops during a live game?

If the round's outcome was determined before your disconnection, the round settles normally and the result appears in your balance and game history. In decision games like blackjack, an unfinished hand is played out under the default rule published in the game rules, typically standing on made hands. Interrupted rounds that cannot complete correctly are voided and refunded. Reconnecting and checking game history shows the resolution.

Can I count cards in live blackjack?

You can, in the sense that the cards are real and removal effects exist. It will not produce an edge in practice: most live blackjack tables deal roughly half the shoe before shuffling, many use continuous or frequent machine shuffles, and eight-deck games with shallow penetration keep the true count from reaching useful territory. The conditions that make counting profitable in land-based play are absent by design.

Who actually runs live casino games?

A small number of specialist studio companies supply live games to most of the industry: Evolution (which also owns Ezugi and NetEnt Live), Pragmatic Play Live, Playtech Live and a group of smaller studios. The casino where you play embeds their tables. This is why the same tables, dealers and studios appear across many different casino brands.

Are live casino games tested like slots are?

They are certified by the same laboratories (GLI, BMM, iTech Labs, eCOGRA) but against different criteria: shuffling machines, scanning shoes, wheels and dice are approved as devices; dealing and deck-custody procedures are reviewed; settlement math and paytables are verified; and any RNG components, such as game-show multipliers, are tested under standard RNG methodology. Tables are also recorded continuously and results are statistically monitored per table and per wheel.

Sources

• Evolution AB. Annual Report 2024: studio operations and business description. https://www.evolution.com/investors
• Gaming Laboratories International. GLI-19: Standards for Interactive Gaming Systems; equipment standards for live dealer studios. https://gaminglabs.com/gli-standards/
• Malta Gaming Authority. Gaming Authorisations and Compliance Directive: live studio requirements. https://www.mga.org.mt
• UK Gambling Commission. Remote gambling and software technical standards (RTS): requirements for live dealer gambling. https://www.gamblingcommission.gov.uk/licensees-and-businesses/guide/rts-technical-standards
• New Jersey Division of Gaming Enforcement. Live dealer studio regulations, N.J.A.C. 13:69O. https://www.nj.gov/oag/ge/
• Griffin P. The Theory of Blackjack. 6th ed. Huntington Press, 1999. House edge derivations for rule variations.
• Ethier SN. The Doctrine of Chances: Probabilistic Aspects of Gambling. Springer, 2010. Chapters on roulette and baccarat mathematics.

This article is for informational purposes. Casino Stats Lab does not operate gambling services. Always gamble within your means at licensed operators.