Question 1

What exactly are Sister Sites in the context of UK online casinos?

Accepted Answer

Sister Sites are online casinos that are owned and operated by the same parent company. They share the same UKGC operating licence, backend infrastructure, payment gateways, and often game libraries, but present themselves as distinct brands with different names, themes, and visual identities. Players in the UK encounter them regularly because a single operator group may run dozens of brands under one regulatory umbrella. Examples from well-known networks include brands like All British Casino, Mr Vegas, and Duelz, which may share parent infrastructure while maintaining separate brand personalities.

Question 2

Can I claim a welcome bonus at a sister casino if I've already played at one of its siblings?

Accepted Answer

In most cases, no. Sister casino networks typically share player data and enforce bonus eligibility rules across all brands under the same parent. The welcome bonus is usually available once per player — identified by name, address, payment method, device, or IP address — regardless of how many brands you register with in the network. This is clearly stated in the terms and conditions of reputable UKGC-licensed operators. Always check the specific T&Cs of the sister casino you're considering before registering with the expectation of receiving a new player offer.

Question 3

Does self-exclusion at one casino apply to its Sister Sites?

Accepted Answer

If you self-exclude via GAMSTOP — the UK's national self-exclusion scheme — this applies to all UKGC-licensed casinos, including every sister casino under any network. However, internal self-exclusion (applied directly through a casino's responsible gambling tools rather than via GAMSTOP) may or may not be extended across a network, depending on the operator's policy. Some parent companies voluntarily apply network-wide exclusion; others do not. If responsible gambling protections are important to you, always use GAMSTOP for the broadest coverage and confirm the scope of any internal exclusion with customer support.

Question 4

Are Sister Sites safe to play at in the UK?

Accepted Answer

Yes — provided they hold a valid, active UKGC licence. The UK Gambling Commission's regulatory framework applies equally to all brands operated under a single licence, meaning the same player protection standards, game fairness requirements, and responsible gambling obligations are in force across the entire sister network. You can verify any casino's licence status on the UKGC's public register using the licence number displayed in the casino's footer. Networks that include established brands like Pub Casino, All British Casino, and Mega Riches have demonstrated regulatory compliance over time, which adds to their trustworthiness.

Question 5

How do I find out which casinos are Sister Sites of each other?

Accepted Answer

There are several ways to identify sister casino relationships. First, check the footer of any UKGC-licensed casino for the licence number and operator legal name — you can search both on the UKGC public register to find other brands under the same licence. Second, review the Terms and Conditions of the casino, which typically disclose the parent company name. Third, use trusted casino comparison sites and review resources — including the curated selection available at this recommended UK casino resource — which regularly map out sister casino relationships for players. Finally, contacting customer support directly and asking which other brands share the same operator is a straightforward and reliable method.

Question 6

Do Sister Sites share the same game library?

Accepted Answer

Generally, yes — to a significant degree. Because software provider agreements are negotiated at the parent company level, the game catalogue available at one brand in a sister network is largely replicated across its siblings. This means if you enjoy playing a particular slot or live casino game at one brand, you'll almost certainly find it at a sister casino too. However, minor differences do exist: individual brands may feature exclusive titles, early access games, or curated lobby experiences that differentiate their selection. Brands like Duelz emphasise their gamified, battle-themed experience in how they present their slots, while All British Casino focuses on a streamlined, UK-centric lobby — subtle differences that emerge despite a largely shared underlying game library.

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