“RNG” and “live dealer” get used as if they’re two flavors of the same thing. They’re not. They’re two entirely different methods of deciding who wins a hand, and understanding the difference explains a lot about why live dealer games exist at all, and why some players trust one format more than the other.
RNG Games: The Result Is Computed
An RNG (Random Number Generator) game — standard digital blackjack, slots, digital roulette — has no physical object anywhere in the process. When you press “deal” or “spin,” a certified algorithm generates a number (or sequence of numbers) that maps to a result. A digital roulette wheel doesn’t have a ball; it has a piece of software that outputs “17” and then plays an animation depicting a ball landing on 17.
The fairness of an RNG game rests entirely on the algorithm. Testing labs certify that the RNG’s output distribution is statistically random and can’t be predicted or manipulated, and that certification is what you’re trusting when you play. There’s no external, physical event to check the software’s output against — the software’s output is the entire event.
Live Dealer Games: The Result Is Observed
A live dealer game inverts this completely. A real dealer shuffles real cards or spins a real wheel, in a studio, on camera. The result exists physically before any software touches it. The Game Control Unit then reads that physical result and converts it into data your account balance can react to.
This means a live dealer game’s fairness doesn’t rest on trusting an algorithm’s internal math — it rests on trusting that the camera feed and the reported data match, which is independently verifiable in a way pure software isn’t. That’s a fundamentally different kind of trust.
Why This Distinction Actually Matters
Auditability. RNG certification checks an algorithm’s statistical properties in isolation. Live dealer auditing can cross-reference the recorded video against reported outcomes for any specific round, which is a stronger, more direct form of verification.
Perceived and actual variance. A well-certified RNG and a well-run live table should converge on the same theoretical odds over a large enough sample — a fair European roulette wheel and a fair RNG European roulette game both have a 2.7% house edge. The physical wheel doesn’t inherently favor players; it’s just observed rather than computed.
Speed. RNG games can run faster since there’s no physical dealing or spinning to wait for. Live dealer games are paced by real-world physics — cards take time to shuffle, wheels take time to spin.
Cost and complexity. Running a live dealer table requires a studio, a trained dealer, cameras, a GCU, and streaming infrastructure. Running an RNG game requires certified software. This is a large part of why RNG games vastly outnumber live dealer tables at most platforms — live dealer is expensive to produce.
Neither Format Is Inherently “More Fair”
A common misconception is that live dealer games are automatically more trustworthy because “a real person is dealing.” That’s not quite right. A properly certified RNG, tested by an accredited lab, is exactly as fair, mathematically, as a properly run live table. What live dealer actually offers is a different kind of verifiability and a different experience — not better math.
The place licensed live dealer studios genuinely differ is in what happens if something goes wrong. A disputed RNG result requires trusting the software’s internal logs. A disputed live dealer result can be checked against the actual video of the actual table. For more on how that verification process works, see our guide to how live casino fairness audits work.
FAQ: RNG vs. Live Dealer
Do live dealer games use an RNG at all? Table-based live dealer games (blackjack, roulette, baccarat) don’t use an RNG for the core result — that comes from the physical shuffle or spin. Some live game shows layer RNG-driven multipliers on top of a physical wheel spin, combining both systems.
Is the house edge different between RNG and live dealer versions of the same game? Not inherently. European roulette has the same 2.7% house edge whether it’s RNG or live dealer, assuming both are fair and use the same rule set. Differences in house edge usually come from rule variations (single vs. double zero, side bet payouts), not the RNG-vs-live distinction itself.
Can I tell which type I’m playing? Yes — live dealer games are clearly labeled as such and show a real video feed of a dealer and table. RNG games use animations and graphics instead of video.
Which is faster to play? RNG games, generally, since there’s no physical dealing or spinning to wait for.
This article is part of our How It Works series explaining the technology behind live dealer casino games.