Quantum Roulette is Playtech's live European roulette game in which random multipliers are added to a few straight-up numbers each round. The wheel and bets are standard single-zero roulette, but an unboosted straight-up wins less than the usual 35 to 1, and the difference pays for the occasional multiplied hit.
Playtech built Quantum Roulette as its answer to multiplier roulette, built on a single-zero wheel.
Multipliers are added to selected numbers after betting closes and apply to straight-up bets only.
The base straight-up payout is lower than 35 to 1; the help screen gives the exact figure and RTP.
A simple formula shows how the base pay, the number of boosted spots and the average multiplier balance out.
Roulette isn't subject to the £5 slot stake limit, so your own limits matter.
Developer
Playtech (live)
Wheel
European, single zero, 37 pockets
Multipliers
Random, on selected straight-up numbers
Base straight-up pay
Below 35 to 1 (see help screen)
Outside bets
Paid at the table's listed odds
Chance per number
1 in 37, multiplier or not
What Quantum Roulette is
Multiplier roulette took off when studios realised that a standard wheel could be given a bonus layer without changing its physics. Quantum Roulette is Playtech's version. Each round, after bets are locked, the game highlights a few numbers and attaches a random multiplier to each. If the ball lands on one of them and you hold a straight-up chip there, your win is multiplied.
Everything else is ordinary European roulette: 37 pockets, one green zero, and the usual inside and outside bets. Because the multipliers are funded by a lower base straight-up payout, the game suits players who bet on single numbers and are comfortable with long gaps between wins. Anyone who sticks to red/black or dozens will barely notice the feature.
We don't quote Quantum Roulette's multiplier range, base payout or RTP here, because we couldn't verify the current UK figures from an official source. The table's help screen lists all three, and the method later on this page shows how to judge them.
Who makes Quantum Roulette: Playtech in brief
Playtech was founded in 1999 in Tartu, Estonia, is headquartered in Douglas on the Isle of Man and is listed on the London Stock Exchange. It is known for its Age of the Gods jackpot slots and for live casino, and it owns the Swedish slot studio Quickspin. Its corporate site, Playtech's homepage (opens in a new tab), lists its products.
For players, that background mainly matters for availability. Quantum Roulette appears only at casinos that take Playtech's live studio feed, which isn't every UK site. Our Playtech provider page has more on the company's games, and casino software providers explains how studios supply casinos.
How a Quantum Roulette round works, step by step
Join the live table and open the help screen to read the base straight-up payout, multiplier range and table limits.
Place bets while the timer runs; only straight-up bets can collect a multiplier.
Betting closes and the game reveals the boosted numbers and their multipliers.
The dealer spins and the ball lands in a pocket.
Bets settle: a straight-up on a boosted number pays its multiplier, other winning straight-ups pay the base rate, and all other bets pay their listed odds.
If the live format is new to you, how to play live roulette explains timers, chip selection and the history panel.
Quantum Roulette bets and how each is paid
Bet types at a multiplier roulette table
Bet
Can it be multiplied?
Payout basis
Chance per spin
Straight up on a boosted number
Yes
The multiplier shown for that round
2.70%
Straight up on an ordinary number
No
Reduced base rate (help screen)
2.70%
Split, street, corner, six line
No
Odds listed in help screen
5.41% to 16.22%
Dozen or column
No
Odds listed in help screen
32.43%
Red/black, odd/even, high/low
No
Odds listed in help screen
48.65%
On a standard table the inside bets and outside bets above all have a 2.70% edge. At a multiplier table, the help screen may list different RTPs for straight-ups and other bets, so read each line instead of assuming they match.
The maths of Quantum Roulette: balancing base pay and multipliers
You can describe any multiplier roulette game with three numbers: the base straight-up payout (B to 1), the chance that a given number is boosted in a round (q), and the average multiplier when it is (M). The return on a £1 straight-up is then:
Return = 1/37 × [(1 − q) × (B + 1) + q × (M + 1)]
On a standard table, B is 35 and q is zero, which gives 36/37, or 97.30%. A multiplier game lowers B and makes up the difference through q and M. The table works through one example using invented, illustrative inputs to show how the balance works; it is not a description of Quantum Roulette's actual settings.
Average multiplier needed to return 97.30% (illustrative inputs)
Base pay (B)
Boosted numbers per round
q (chance a number is boosted)
Average multiplier (M) needed
29 to 1
5
5/37 = 13.5%
About 73x
29 to 1
3
3/37 = 8.1%
About 103x
30 to 1
5
5/37 = 13.5%
About 67x
Two lessons follow. First, a game can offer very large headline multipliers while keeping the same overall return as a plain table, because they're rare. Second, the multiplier sequence doesn't change the 1-in-37 chance of the ball landing on any pocket. This is an application of expected value; the Wizard of Odds roulette guide (opens in a new tab) covers the plain single-zero baseline.
Is Quantum Roulette right for you?
Advantages
Adds a bonus layer to straight-up bets without changing the wheel or the odds of any pocket.
Outside bets work much as they do at a standard table.
Occasional multiplied wins can be far larger than 35 to 1.
Drawbacks
Ordinary straight-up wins pay less than at a standard table.
Results are streakier, so budgets run down faster between hits.
Only available where the casino carries Playtech's live feed.
If your favourite bet is a single number, the trade is the core of the game. If you prefer even-money bets, a standard European table, or a French one with la partage, gives you the same experience at a cost you can read straight off the roulette odds table.
Quantum Roulette versions and similar games
Playtech has applied the Quantum name to more than one table, and lobbies label them differently. Before playing a Quantum-branded table you haven't seen before, check whether it's dealt live or run by an RNG, because the pace, limits and help-screen figures may differ. Any RNG version must allow at least 5 seconds per game cycle under UK rules in force since 17 January 2025.
Evolution's Lightning Roulette and its more volatile spin-off XXXtreme Lightning Roulette follow the same broad design. The differences lie in the numbers: how many spots are boosted, how large the multipliers go and what the base pay is. Compare the help screens side by side rather than relying on names.
Quantum Roulette myths
'Boosted numbers are more likely to win.' The multiplier is attached after the ball's odds are fixed; each pocket stays 1 in 37.
'If a number was boosted last round, it will be again.' Each round's selection is fresh and random.
'Spreading straight-ups across many numbers catches the multipliers.' It catches more wins, most at the reduced base rate, and multiplies your stake per spin.
'History boards reveal patterns.' They record results; the gambler's fallacy explains why they don't predict them.
Think in units. If one unit is the stake you'd place on a single straight-up, budget at least 100 units for a session, because a typical straight-up wins about once every 37 spins and gaps of 80 or 100 spins without a hit aren't unusual. At £1 a unit that is £100; at 20p, £20. If that feels too much, combine one straight-up with an outside bet to smooth results, or lower the unit size.
You'll find this table only at UK casinos that carry Playtech's live tables, so search the live roulette lobby by name. If it's not there, our casino games hub lists other roulette and live formats.
The partners shown below describe live casino in their app listings, but none runs a Quantum Roulette offer, and we can't confirm which studios' tables each currently shows. Casumo gives new customers a 50% bonus up to £100 on a first deposit of £20 or more, with 10x wagering within 7 days, a £5 maximum bet and game restrictions. PlayOJO's 80 spins on Big Bass Bonanza (10p each, no wagering) need a £10 minimum first deposit; Coral's 100 spins at 10p need £10 bet on slots. 18+, terms apply; spins are for slots, not roulette.
There's no partner offer for Quantum Roulette. Casumo, PlayOJO and Coral describe live casino in their app listings; check whether the lobby carries Playtech tables and read bonus game rules. 18+, T&Cs apply.
Significant terms: 18+. New customers only. Opt-in required. 50% deposit bonus up to £100 on first deposit. Minimum deposit £20. 10x wagering on the bonus amount. Maximum bet or spin £5. Bonus valid for 7 days. Game, play and payment method restrictions apply. Full T&Cs apply. GamCare.org.uk
Read the Casumo reviewLicence: Recro Limited, UKGC account 61549. Offer checked 5 October 2026.
Significant terms: 18+. New UK customers (excluding Northern Ireland). First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. GamCare.org.uk
Read the PlayOJO reviewLicence: Skill On Net Limited, UKGC account 39326. Offer checked 5 October 2026.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Coral reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set deposit limits. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
What is Quantum Roulette?
It is Playtech's live roulette game on a single-zero European wheel, with random multipliers added to a few straight-up numbers each round. If the ball lands on a boosted number and you have a straight-up bet there, the win is multiplied. Ordinary straight-up wins pay less than the usual 35 to 1 to fund those multipliers. Other bets work like a normal table, at the odds listed in the help screen. Our online roulette guide covers the basics.
How do Quantum Roulette multipliers work?
After betting closes, the game selects a few numbers at random and assigns each a multiplier. A straight-up bet on one of those numbers pays the multiplier if the ball lands there. Splits, corners and outside bets aren't multiplied. The selection doesn't change where the ball can land, so each pocket still has a 1 in 37 chance. The help screen lists the multiplier range and how many numbers can be boosted. See our multiplier glossary entry for the general idea.
What is the RTP of Quantum Roulette?
The help screen gives the RTP for each type of bet, and it's the figure to rely on; we couldn't verify the current UK numbers from an official source. Compare the straight-up figure with 97.30%, the return on a standard single-zero table. A lower figure means you pay extra for the chance of a multiplier. Turn a percentage into money by applying it to your stakes: a 2.7% edge on £200 of bets is about £5.40. RTP explained has more.
What is the difference between Quantum Roulette and Lightning Roulette?
They share a design: a single-zero wheel, a reduced base straight-up payout and random multipliers on selected numbers. Playtech makes Quantum Roulette and Evolution makes Lightning Roulette, and their multiplier ranges, number of boosted spots and base payouts differ. Which one you'll find depends on the casino's studios. Compare help screens to judge the cost, and read our Lightning Roulette page for the Evolution version's features.
Can you win on outside bets in Quantum Roulette?
Yes. Outside bets such as red/black, odd/even and dozens win in the usual way, paid at the odds shown in the help screen. They simply don't collect multipliers. If you mainly play outside bets, the Quantum feature adds little for you, and a standard European or French table may be the simpler choice. The house edge applies either way. Our page on red/black bets explains how even-money bets work and why zero matters.
Is Quantum Roulette live or RNG?
The main Quantum Roulette table is a live dealer game streamed from a studio with a real wheel. Playtech has also used the Quantum name on other tables, and lobbies label them differently, so check whether a particular version is dealt live or by an RNG before you play. RNG versions must allow at least 5 seconds per game cycle in the UK. Our comparison of live vs RNG casino games explains the differences in pace and limits.
Can I predict Quantum Roulette results?
No. The multiplier selection is random each round, and so is the ball's landing pocket. Tracking boosted numbers, hot numbers or the history board doesn't change the 1 in 37 chance for any pocket. Betting systems that raise stakes after losses only make losing runs more expensive. Our page on can you predict roulette works through the maths and the common claims about wheel bias and dealer signatures.
Do UK slot stake limits apply to Quantum Roulette?
No. The £5 per spin limit for players aged 25 and over and the £2 limit for 18–24-year-olds apply only to reel-based online slots, from 9 April 2025 and 21 May 2025. Roulette tables, including multiplier tables, set their own minimum and maximum stakes. Because straight-up multiplier play is streaky, setting your own deposit limit is sensible. Since 31 October 2025 casinos must prompt you to set one before your first deposit; how to set deposit limits explains how.
Can I use a bonus on Quantum Roulette?
Check the bonus terms, because live roulette is often excluded or counts at a reduced rate towards wagering. Since 19 January 2026 wagering is capped at 10x, which limits how much play a bonus demands, but game weighting still applies. Free spins offers, including those at our partners, can only be used on the named slots. Our guide to game weighting explains how contribution rates work and how to calculate the real wagering on table games.
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