What Are Sister Sites? The Honest Answer for UK Players

What are sister sites? Casinos run by the same operator, usually on one licence. Skill On Net runs 52 brands from a single account; Betfred and Lottoland run one each. Your self-exclusion carries across every brand on a British account. Your balance and your welcome offer do not.

What are sister sites, in practice?

Two casinos are sisters when the same company holds the operating licence and your deposits, whatever the logo says. Matching artwork and similar bonuses are clues, not proof.

Group sizes vary more than most people expect. At one end, Betfred and Lottoland each run a single online brand. At the other, Skill On Net’s account carried 52 trading names and 60 web addresses when read on 2 August 2026.

How can you tell if two casinos are sister sites?

Check the operator’s entry on the Gambling Commission’s public register. Every account has a trading-names page and a domain-names page listing each brand and web address that operator may run, marked active or inactive.

If both casinos appear on the same account, they are sisters. If they do not, they are not, however similar the lobbies look. The check takes about a minute and costs nothing, and it is the only method that does not depend on somebody else having done it properly.

Do sister sites always share the same licence?

Usually, but not always, and the exception costs you something real. Some groups run two separate licensed companies from the same building with near-consecutive paperwork, legally distinct, commercially one business.

That matters when a payout stalls. Your complaint goes to the company named on that brand’s licence, not to the group behind it. Two sites that feel identical can have two different companies answerable for your money, and only one of them has your balance.

What is a white label casino?

A white label is a casino where one company owns the brand name and a different company holds the licence, the platform and your deposits. Eighteen of the 60 addresses on Skill On Net’s account were marked white label on 2 August 2026, including Genting Casino, Slingo, Luna Casino and Swift Casino.

The practical effect is that the business which has to release a held withdrawal is the operator behind the scenes, not the familiar name on the homepage. Genting is a household name in British casinos; the site trading under it online runs on somebody else’s account.

What carries over between sister sites?

Less than people assume, and the exceptions run both ways. The platform and the games travel with you. Your money does not.

Can you use the same account at a sister site?

No. Every sister brand needs its own registration and its own identity checks, even where both run on the same platform and the same cashier.

Your balance does not move either. Funds sit with the brand you deposited to, so switching means withdrawing from one and depositing to the other, with a fresh verification queue waiting at the far end.

Groups also restrict how often you can take a welcome offer across their brands. Skill On Net’s terms allow one welcome bonus every 72 hours across all its casinos, so signing up next door immediately after claiming gets you nothing.

Do sister sites share the same games?

Yes, nearly always, and this is the most useful thing to know before switching. Pragmatic Play, Evolution, NetEnt and Play’n GO supply most UK casinos, so the top 50 slots at one brand are largely the top 50 at its sisters.

The Dream Jackpot family shows how far that goes. All four live brands run the same welcome offer, £20 in, £20 staked on a named Big Bass slot, 20 spins at 10p, and the only thing that changes between them is which Big Bass title the spins land on.

Changing sister sites to find different games rarely works. Changing them to find different terms sometimes does. Our kwiff sister sites breakdown shows a group where both brands run an identical offer down to the cashout cap.

Does self-exclusion cover sister sites?

At UK-licensed groups, usually across the whole account. At offshore groups, frequently not, and that gap is the most dangerous thing on this page.

Does GAMSTOP block sister sites?

GAMSTOP blocks every operator licensed in Great Britain, so one registration covers every UK sister brand at once for the term you choose: six months, one year or five years, with no way to lift it early.

It does not reach operators licensed elsewhere. A site advertising itself as “not on GAMSTOP” is telling you accurately that the scheme does not apply there, and that none of the protections attached to it do either, no cross-brand block, no British complaints route, no deposit or stake limits.

What happens if you self-exclude at one brand only?

At a UK group it usually covers all of them. Skill On Net applies a self-exclusion request across all 52 brands on its account, including the eighteen owned by other companies.

Offshore groups often do not. In one network of five casinos run by the same company, excluding at one brand leaves the other four reachable, and complaint logs on a named review platform record players registering at a sibling afterwards. Anyone relying on that exclusion has a hole in it they did not agree to. The MyStake sister sites page sets out which brands that network covers.

Tools that work regardless of where a site is licensed: device-level blocking software, and bank gambling blocks offered by most UK banks. GamCare and the National Gambling Helpline on 0808 8020 133 will set up either with you, free and at any hour, and GAMSTOP takes minutes to register.

What does a sister site bonus actually cost?

Work it out before depositing, because the maximum bonus cap changes the answer more than the match percentage does.

How do you work out what a casino bonus costs to clear?

Take Mega Casino, one of Skill On Net’s brands, as published on its UK site in August 2026: 100% up to £25, minimum deposit £10, 10x wagering on the bonus and on free-spin winnings, slots only, 30 days.

Deposit £100 expecting a £100 bonus and you get £25, because the cap applies before anything else. The sum is the match or the cap, whichever is smaller.

Then apply the wagering. 10x on a £25 bonus is £250 that has to go through the slots before any of it becomes withdrawable cash. At £2 a spin, that is 125 spins.

18+. T&Cs apply. Slots only, and the wagering must be cleared inside 30 days. If gambling is causing you problems, the National Gambling Helpline is on 0808 8020 133.

Why does the maximum bonus cap matter more than the match?

Because the cap is applied first and the percentage second. A 200% match with a £50 cap pays £50 on a £100 deposit, not £200, the deposit is never folded into the bonus figure.

That is where money leaks. Someone depositing £100 to chase a “100% up to £25” offer has tied up £75 that bought them nothing, when the minimum deposit on that offer is £10. Find the cap, deposit the amount that reaches it, and stop. Our Dream Jackpot sister sites comparison shows a group where every brand caps the same way.

Where do people get sister sites wrong?

Two mistakes. One costs money and one costs considerably more than that.

Can you claim the same welcome bonus twice at sister sites?

Rarely, and it is usually not worth trying. Groups apply eligibility rules across their brands, and in several networks the offers are identical anyway.

Two brands run by one operator both give new players the same deal: stake £20 on slots within five days, receive up to 200 spins at 10p, cash winnings capped at £250. Moving between them produces the same £250 ceiling you already had, plus a second set of identity checks.

The quantified version of this mistake is simpler than people expect. It is not that you lose money by switching, it is that you spend an hour re-verifying an account for an offer you have already taken.

Are sister sites just the same casino in different colours?

Mostly, yes, and the exceptions are always in the terms rather than the design. Across Skill On Net’s 52 brands, wagering sits at 10x almost everywhere. Zingo Bingo applies 5x on bingo bonuses. PlayOJO applies none at all and pays a percentage of every bet back as withdrawable cash.

On a £25 bonus, those three positions mean £250 to stake, £125, or nothing. Same platform, same slots, same company, three completely different outcomes. Judging sister sites by their homepages tells you nothing. The PlayOJO sister sites page compares all 52 on that single line.

What do other sister site guides get wrong?

They list brands that merely share a game supplier as sisters. Pages ranking for these searches routinely name William Hill and Coral as sisters of an unrelated bookmaker because all three carry Playtech content, when those brands belong to three different companies. The opposite error is just as common: a single-brand site presented as the head of a network that does not exist, which is what MrQ sister sites turns out to be once you check the register.

Why do sister lists disagree so much?

Because most are copied from each other rather than from the register, and operators reorganise faster than affiliate pages get updated. One brand family changed operating company entirely on 28 August 2025, and pages naming its previous operator were still ranking a year later.

Dead brands are the other half of it. Register entries mark closed brands inactive, but affiliate lists keep them as places you can join. Three closed casinos on one account were still being presented as live in August 2026.

Which brands get listed as sisters wrongly?

The ones that share a platform, a supplier or a court case rather than an owner. Two lottery-betting brands stood alongside a third in a 2018 legal challenge, and lists have treated them as related ever since, they belong to companies in Malta, Jersey and Gibraltar respectively.

One operator has published its own correction. PlayOJO’s official sister-sites page names its genuine sibling brand and states plainly that no other casino is an official sister site, which directly contradicts several lists ranking above it. The Lottoland sister sites page shows a brand where the register settles the question in one line.

What are sister sites worth to you?

Occasionally a lot, usually nothing, and two figures you can check in five minutes decide which.

What should you check before signing up to a sister site?

Check the wagering multiple and what it applies to. A bonus carrying 10x on the bonus alone costs a fraction of one carrying 30x on deposit plus bonus, even though the second number is only three times the first.

Then check the maximum cashout. Some offers cap what a bonus can ever return at five or ten times its value, which sets a ceiling on the whole exercise however the play goes. Where UK sites cap wagering at 10x, offshore groups commonly run 30x to 40x, and apply it to the deposit as well.

When is switching to a sister site a bad idea?

When you left the first brand over a payout problem. The verification team, the cashier and the withdrawal process are usually shared across the group, so the thing that went wrong is likely to go wrong again.

It is also a poor idea when the sister sits outside Great Britain. UK rules cap bonus wagering at 10x, limit slot stakes to £5 a spin for over-25s and £2 for 18 to 24-year-olds, and give you an independent complaints route. An offshore sibling of a UK brand gives you none of those, whatever the shared branding suggests. The Betfred sister sites page covers a brand where the honest answer is that there is nothing to switch to.