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Sister sites are online bingo and casino websites owned and operated by the same company, usually under the same UK Gambling Commission remote licence. Each site has its own brand name, theme, and welcome offer, but they typically share the same platform, similar payment options, and the same regulatory obligations.
Each guide also includes sites like the brand — similar alternatives from different operators that offer a comparable experience. So if a brand has no sister sites, or you simply want something new, you can still find UKGC-licensed alternatives scored by shared platforms, game providers, and features.
Each brand has its own page here — for example, Jackpotjoy sister sites include Monopoly Casino and Virgin Games, while Tombola has no sister sites at all. Most brands fall somewhere in between.
Players look for sister sites to access fresh welcome bonuses, try a different theme, or find a quieter lobby. Because sister sites usually sit under the same UKGC account, they must meet the same player-protection standards, including responsible-gambling tools and GAMSTOP self-exclusion.
One thing to watch: Most operators allow one welcome bonus per brand, but some restrict offers across their whole network — always check the bonus terms before signing up.
Browse Sister Sites A–Z
There are 85 brands listed for sisters and similar sites. Click each one to see alternatives.
Common Questions About Sister Sites
- What are bingo and casino sister sites?
- Sister sites are separate online brands run by the same operator under a single UK Gambling Commission licence. They share the same backend platform, payment processing and customer support but offer different themes, welcome bonuses and branding. For example, Jackpotjoy and Botemania are sister sites because they are both operated by the same company.
- Why do operators run more than one site?
- Running multiple brands lets an operator target different audiences without diluting an existing brand. One site might focus on bingo players, another on slot fans, and a third on live casino. It also lets them test different welcome offers, loyalty schemes and designs while keeping the same reliable platform behind the scenes.
- Are sister sites safe to play at?
- Yes, provided the parent operator holds a valid UKGC licence — and every brand listed in this directory does. Sister sites operate under the same regulatory requirements, player protection standards and responsible gambling obligations as the main brand. If you are ever unsure, you can check the UKGC public register yourself.
- If I self-exclude from one site, does it apply to its sister sites?
- In most cases, yes. UK-licensed operators are required to apply self-exclusion across all brands operating under the same licence. If you register with GamStop, your exclusion covers all UKGC-licensed sites, not just sister sites. Always check with the operator directly if you are unsure.
- Can I claim a welcome bonus at a sister site if I already have one at the main brand?
- It depends on the operator. Some operators restrict welcome bonuses to one per household across all their brands, while others treat each site as a separate entity. Always read the bonus terms and conditions before signing up to a sister site — the key phrase to look for is whether the offer is limited to new customers who have not held an account on any sister brand.
- Can I transfer my balance between sister sites?
- No. Even though sister sites share a platform, each brand requires a separate account with its own balance, wagering requirements and withdrawal process. You cannot move funds between them.
- How does the similar sites scoring work?
- When two brands are not run by the same operator, they are matched using a scoring algorithm that compares shared bingo or casino platforms, game providers and features. The higher the overlap, the higher the similarity score. This helps you find alternatives that play and feel alike, even if they are run by different companies. Similarity scores are capped at 90% because no two independently operated sites are truly identical.
- What is the difference between sister sites and similar sites?
- Sister sites are run by the same operator under the same UKGC licence — they are officially related. Similar sites are run by different operators but share platforms, game providers or features that make the playing experience comparable. Both are useful when you are looking for something new, but sister sites have a stronger operational connection.
- Do sister sites share the same games?
- Usually, yes. Because sister sites run on the same platform, they tend to offer the same core game library. However, operators sometimes add exclusive games or promotions to specific brands to differentiate them. The bingo schedule and room structure can also vary between sister sites.
- How do I know which operator runs a site?
- Every UKGC-licensed site is required to display the name of the licence holder in its footer. In this directory, you can click any brand to see its full guide, which includes the operator name, licence number and sister sites. You can also browse by operator using the operator view.
- Why should I check sister sites before signing up somewhere new?
- Knowing a brand's sister sites helps in several ways: you can find better welcome offers across the same operator, avoid accidentally opening duplicate accounts which could cause problems with withdrawals, and make informed decisions about where to play based on the operator's reputation across all their brands.
- Are the sister site relationships verified?
- Yes. Every relationship listed here is verified against the UKGC public register and operator disclosures. This directory is maintained by Glitzy Bingo and updated regularly. If you spot an error, you can report it using the contact link at the bottom of the page.
Published by: Rachael Bullock — UK bingo specialist with nearly 20 years' industry experience, former Virtue Fusion chat host & independent site owner since 2007. LinkedIn
How it works: Sister site relationships are verified against the UKGC public register and operator disclosures. Similar sites are scored by shared platforms, game providers and features — not by paid placement.
Last verified: 9 March 2026
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