UK
Big Time Gaming casinos
The Megaways engine — reels whose symbol count changes on every spin.
Big Time Gaming is the studio behind Megaways, the mechanic where each reel holds a different number of symbols on every spin and the number of ways to win moves with it, up to well over a hundred thousand. It is licensed to other studios, so a lobby can be full of Megaways games with barely a title from the studio that invented it.
The rule, not our mood
A casino appears here when we hold evidence it carries Big Time Gaming games — a title of theirs catalogued in its lobby, their name in the live-table count we recorded, or the operator's own published studio list. Every row says which of the three it is, and the order is our 100-point score, not the strength of the evidence.
To claim: select the offer before you deposit
Get Bonus from All British Casino18+ · New customers · T&Cs apply
Min. to qualify £10 · Spins expire in 48 hours · No wagering on winnings
Payment method rules also apply.
18+ · New customers · T&Cs apply
Min. to qualify £10 · Time limit: 48 hours from qualifying · No wagering on winnings
To claim: collect the spins from My Account
Get Bonus from O'Reels18+ · New customers · T&Cs apply
Min. to qualify £20 · Must be claimed within 7 days · No wagering on winnings
To claim: opt in before your first deposit
Get Bonus from Virgin Games18+ · New customers · T&Cs apply
Min. to qualify £10 · No wagering on winnings
Time limits also apply.
To claim: select the Casino Welcome Offer at registration
Get Bonus from Slotboss18+ · New customers · T&Cs apply
Min. to qualify £20 · Time limit: 3 days · No wagering on winnings
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Min. to qualify £10 · No wagering on winnings
Time limits also apply.
To claim: opt in to the offer
Get Bonus from 32Red18+ · New customers · T&Cs apply
Min. to qualify £30 · 10x wagering on winnings
Time limits and payment method rules also apply.
To claim: activate the bonus before you deposit
Get Bonus from Casumo18+ · New customers · T&Cs apply
Min. to qualify £20 · 10x wagering on bonus · Time limit: 7 days
To claim: opt in, then deposit and stake
Get Bonus from Unibet Casino18+ · New customers · T&Cs apply
Min. to qualify £30 · 10x wagering on winnings
Time limits and payment method rules also apply.
Compare casinos carrying Big Time Gaming
| CASINO | EVIDENCE | LIVE TABLES | PAYOUT TIME | MIN DEPOSIT | SCORE |
|---|---|---|---|---|---|
| All British Casino | Operator's claim | — | — | — | 7.5 63 of 100 assessed |
| MrQ | Operator's claim | 24 | — | — | 7.4 72 of 100 assessed |
| O'Reels | Operator's claim | 79 | average withdrawal time is under 4 hours | £5 | 7.3 62 of 100 assessed |
| Virgin Games | Operator's claim | 17 | — | — | 7.1 76 of 100 assessed |
| Slotboss | Operator's claim | 77 | — | — | 6.9 72 of 100 assessed |
| Double Bubble Bingo | Operator's claim | — | — | — | 6.7 70 of 100 assessed |
| 32Red | Operator's claim | — | 24 hours pending, then processed | £10 | 6.5 75 of 100 assessed |
| LeoVegas | Operator's claim | — | — | — | 6.0 45 of 100 assessed |
| Casumo | Operator's claim | — | — | — | 5.8 59 of 100 assessed |
| Unibet Casino | Operator's claim | 2 | — | — | 5.7 61 of 100 assessed |
| Mr Vegas | Operator's claim | — | — | — | — not scored yet 30 of 100 assessed |
| Videoslots | Operator's claim | — | — | — | — not scored yet 22 of 100 assessed |
Live table counts are ours, recorded per casino with a date; capacity varies through the week, so a count is a snapshot rather than a constant. An em dash means we hold no count for that operator, not that it has none.
Big Time Gaming games we hold
| Game | RTP (published) | Volatility | Our score |
|---|---|---|---|
| Bonanza | 96.00% | — | — |
| Danger High Voltage | 95.67% | — | — |
| Star Clusters Megaclusters | 96.54% | — | — |
| Monopoly Megaways | 96.50% | — | — |
| White Rabbit | 96.42% | — | — |
| Millionaire Megaways | 96.30% | — | — |
RTP as published by Big Time Gaming. Operators can run a lower configuration of the same game — where we know the setting a casino actually uses, the casino's review says so, and that is worth 6 points on our rating rubric.
What we hold on Big Time Gaming, and how strong it is
We have catalogued 6 titles from this studio, and every one of them carries the studio's own published return figure — from 95.67% to 96.54%, a spread wide enough that the title matters as much as the studio.
12 casinos in this catalogue meet the rule above. The remaining 12 rest on the operator's own studio list — we hold this studio's titles but have not yet recorded one of them in a named lobby, so that is the honest ceiling of what we can say today. An operator has little reason to invent a supplier, but a marketing page goes stale, and lobbies drop studios overnight without announcing it.
The general questions — what a studio decides versus what the casino decides, why the same title can pay differently in two lobbies, and how to check a lobby yourself in about two minutes — are answered once, on the studios hub, rather than repeated under every studio.
Megaways is a licence, not a studio
This is the single most common misreading of a lobby. Megaways appears in the names of games from many different developers, because the engine is licensed out — a casino advertising "200+ Megaways slots" is describing a mechanic across its whole catalogue, not a relationship with Big Time Gaming. If you are looking for this studio's own titles, filter by provider rather than searching the word.
The mechanic itself has a consistent character regardless of who builds on it. Ways to win vary wildly spin to spin, wins are typically driven by cascades and a rising multiplier in the free-spin round, and the distribution is heavily skewed: long stretches of nothing punctuated by results that a fixed-line slot cannot produce. The advertised maximum win is a real but extremely rare outcome, and treating it as a target rather than a curiosity is the fastest way to misjudge a bankroll.
The practical consequence for reading this page: a casino carrying Megaways titles from other studios will not appear in the list above on that basis. Our rule looks for this studio's own games, its name in the live-table record, or the operator naming it in its own supplier list — not for a mechanic.
One figure per game, and a second set of official pages
Big Time Gaming publishes very little per title. Its own game pages give a single return figure and the number of ways to win — no volatility rating, no maximum win and no list of alternative settings. Evolution, which names the studio among its brands, keeps a second set of pages for five of the six titles we hold, with a volatility label and, for some of them, a maximum win. For three of those five, the two sets agree on the return; for Danger High Voltage and Millionaire Megaways they do not, and for Bonanza they give different release years. Star Clusters Megaclusters has no Evolution page at all, so the studio's single figure is all there is. Where they differ, the figure in our tables is the studio's own, and the game's review names the other one.
Because neither set of pages lists alternative settings, the only check open to a player is a direct one: compare the return shown in the game's own information screen with the studio's published figure. A lower number means a version that no official page describes, and that is a question for the casino before a deposit rather than after one. The same thin specification is why every Big Time Gaming row above shows a dash for volatility: the studio does not state one, and we do not borrow a label from a page that is not the studio's.