Independent guide · not the Duelz operator · UKGC licence 48695 · 18+ play responsibly
🤝 Operator evidence · Updated June 2026

Duelz sister sites and who owns Duelz Casino

Sister site pages are often just random casino lists. This one is evidence-led. We explain the operator, what a real sister relationship means for your bonuses and self-exclusion, and how to verify any named brand yourself.

Operator: Duelz Casino is run by SuprPlay Limited under UKGC licence 48695 and an MGA licence. Any genuine Duelz sister site is another SuprPlay brand, not just a casino with a similar look.

What a sister relationship means

Relationship factorWhat it means for youConfidence
Shared operator (SuprPlay)Same company, similar terms and KYCConfirmed for Duelz
Shared self-exclusionGamStop blocks all UKGC sisters at onceApplies
Bonus eligibility overlapOne welcome offer per player groupLikely
Specific named sister brandsVerify on each brand footer and UKGCCheck live

Relationship confidence, how we label brands

Confirmed sister
EvidenceSame operator on both footers and UKGC
Likely link
PartialShared traits, operator not confirmed
Alternative only
NoneNo ownership evidence, just similar
Avoid the label
RumourAffiliate list with no proof
How to read this. We only call a casino a Duelz sister site when operator or licence evidence ties it to SuprPlay. Everything else is an alternative, not a sister. A brand that merely looks like Duelz proves nothing, so we do not pass off lookalikes as related.

Why this matters before you sign up elsewhere

  • Self-exclusion is shared. GamStop covers every UKGC sister, so excluding from one excludes you from all.
  • Bonus eligibility can be shared. A welcome offer may not apply if you already claimed at a sister brand.
  • Duplicate accounts are flagged. Operators detect linked accounts, which can delay withdrawals.
Verify before you trust a list. Do not assume a brand is a Duelz sister just because an affiliate page says so. Confirm the operator name on each casino footer and on the UKGC register.

Prefer to stay with Duelz?

It is UKGC licensed, pays fast on e-wallets and has a large game wall.

Visit Duelz Casino → →

Related: the Duelz legitimacy check covers the operator in more detail, and the bonus page explains the one-offer rule.

Frequently asked questions

What are Duelz sister sites?

Sister sites are other casinos run by the same operator, SuprPlay Limited. They typically share licensing, account systems and bonus rules. We only label a brand a confirmed sister site where operator or licence evidence supports it.

Who owns Duelz Casino?

Duelz is operated by SuprPlay Limited, which holds UK Gambling Commission licence 48695 and a Malta Gaming Authority licence. The same operator running multiple brands is what creates sister site relationships.

Why do sister sites matter?

They share your GamStop self-exclusion and can share bonus eligibility, so a welcome offer at a sister brand may not be available if you already played at Duelz. Duplicate accounts across sisters can also trigger reviews.

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