Millionaire Sister Sites (2026)

Understanding the Millionaire Sister Sites Landscape

Players searching for Millionaire sister sites will find an unusual situation: our verification process has not yet confirmed any active sister brands operating alongside Millionaire on the UK Gambling Commission register. This doesn’t mean the operator exists in isolation forever, but rather that at the time of our most recent audit, no other casino brands sharing the same corporate licence holder could be verified through official regulatory records. For players, this matters because sister sites typically share payment systems, bonus structures, and responsible gambling exclusions—factors that directly affect your experience and safety.

Millionaire is associated with the ProgressPlay network infrastructure, a white-label platform that has historically powered numerous casino brands. However, the relationship between platform provider and licence holder is not always straightforward. A brand may use ProgressPlay’s technology without being operated by the same legal entity that runs other ProgressPlay-powered sites. This distinction is critical: true sister sites must share a licence holder, not merely a software platform. Our editorial policy prioritises the Gambling Commission register as the definitive source, because only brands under the same UK licence are bound by unified self-exclusion protocols and regulatory oversight.

Why Our Verification Shows Zero Confirmed Sisters

The verified module above reflects our commitment to accuracy over speculation. Many affiliate sites conflate platform networks with corporate families, leading to misleading sister site lists. When we audit a brand like Millionaire, we cross-reference the operator name on its UK Gambling Commission licence with every other active casino licence on the public register. Only brands sharing that exact licence holder qualify as verified sisters. If the register shows just one brand under that licence, or if other brands have since moved to different licences or ceased UK operations, the verified count remains zero.

This rigorous approach protects players from assuming that GAMSTOP exclusions or payment methods will carry across to sites that merely look similar or use the same platform. The Gambling Commission requires each licence holder to maintain its own responsible gambling systems, so a self-exclusion from Millionaire would only automatically apply to genuine sister sites under the same licence. Without verified sisters, players must treat each ProgressPlay-powered casino as a separate entity for exclusion purposes, even if the user experience feels familiar.

What This Means for Player Choice

An empty sister sites list is not a red flag about Millionaire itself. Smaller operators and newer entrants to the UK market often hold single-brand licences, particularly when they’re testing the market or operating under a different corporate structure than their platform provider. Some established networks have also restructured over time, splitting brands across multiple licence holders to manage regulatory risk or facilitate acquisitions. The absence of sisters simply means you’re evaluating Millionaire on its own merits—its game library, withdrawal speeds, bonus terms, and customer service—without the context of how it compares to stablemates.

For players who specifically want the multi-brand experience that sister sites offer, this situation requires a slight shift in research strategy. Rather than comparing Millionaire to its sisters, you’ll be looking at casinos like Millionaire in terms of game selection, platform features, and target audience. ProgressPlay-powered casinos often share visual design cues and lobby layouts, so other sites on the same platform may deliver a familiar feel, even without the corporate connection. However, remember that promotions, VIP schemes, and banking options are set by the licence holder, not the platform, so substantial differences will exist.

How the Picture Can Change

Casino licensing is not static. Operators acquire new brands, apply for additional licences, or consolidate existing properties under a single regulatory umbrella. A brand showing zero sisters today might appear with several siblings after a corporate restructuring or acquisition. Conversely, sister sites can diverge when a group sells off individual brands or allows licences to lapse. We update our verification quarterly against the Gambling Commission’s public register, so the module above reflects the most recent audit cycle. If you’re reading this months after publication, it’s worth checking the live register yourself or returning to our site for the latest verified data.

Players should also note that non-UK licences are excluded from our sister sites methodology. Some operators run brands under Malta Gaming Authority or Curacao licences that may share corporate ownership with their UK-licensed properties, but these fall outside Gambling Commission jurisdiction. Our focus remains exclusively on UK-regulated sisters because only these offer the legal protections and dispute resolution mechanisms that British players can enforce.

Millionaire Sister Sites FAQs

Are there any verified Millionaire sister sites currently operating?

At the time of our most recent audit against the UK Gambling Commission register, no sister brands sharing Millionaire’s licence holder could be confirmed as active. This means you should treat Millionaire as a standalone entity for responsible gambling exclusions and not assume that accounts or bonuses will link to other casinos, even those using the same ProgressPlay platform technology.

Does using the ProgressPlay platform make other casinos sisters to Millionaire?

No. Platform providers supply technology to multiple operators, but true sister sites must share a UK gambling licence holder, not merely software. Many casinos may look and function similarly because they use ProgressPlay’s white-label solution, yet remain completely separate companies with independent banking, bonus policies, and regulatory obligations. Always verify the licence holder on each casino’s website footer and cross-reference with the Gambling Commission register.

Will a GAMSTOP exclusion from Millionaire apply to ProgressPlay casinos?

GAMSTOP is a national self-exclusion scheme that applies across all UK-licensed operators regardless of platform or corporate family. If you exclude via GAMSTOP, you’ll be blocked from Millionaire and every other casino holding a UK Gambling Commission licence, including any future verified sisters and unrelated ProgressPlay-powered sites. However, operator-level self-exclusions requested directly with Millionaire will only cover brands under its specific licence holder, which currently means just Millionaire itself.