4 King Slots Sister Sites 2026
4 King Slots sister sites included Horus Casino, W Casino Online, Space Lilly Casino, Gudar Casino, Universal Slots, Casillion, Lucky Star Casino and 777 Slots Bay. Sweden’s gambling regulator identified all of them in the same Mirage Corporation N.V. network in 2020. 4 King Slots closed in March 2023, its former domain no longer hosts the casino, and it never held a UK Gambling Commission licence.
4 King Slots Sister Sites and Closure Review
Written by Alex MorrisReview updated – 31 August 2026
4 King Slots is closed. Its old domain now forwards to an unrelated casino directory, so it cannot be used to access an account, cashier or support service. Historical records consistently place the brand with Mirage Corporation N.V.; a regulator’s decision provides stronger evidence than the conflicting operator names repeated by some casino directories.
The same decision linked 4 King Slots to a sizeable offshore network. The table below separates that proven historical relationship from current recommendations, because shared ownership in 2020 says nothing about whether a sister brand remains open, properly licensed or suitable for a UK player today.
Verified 4 King Slots Sister Sites
The clearest ownership evidence comes from a Swedish Gambling Authority decision dated 10 June 2020. It named 4kingslots.com and the brands below among websites owned by Mirage Corporation N.V. and Mirage Ent. Corporation (Cyprus) Limited. That proves the historical sister relationship; it does not make any of the brands UK licensed or establish their present-day status.
| Sister site | Operator relationship | Licence/status | Best for | Main risk | Verdict |
|---|---|---|---|---|---|
 Horus Casino |
Mirage Corporation N.V. network named by the Swedish regulator | Historical offshore network; no UKGC protection | Comparing the closest documented casino stablemate | Do not assume old account or support links still work | Confirmed historical sister, not a UK alternative |
 W Casino Online |
Mirage Corporation N.V. network named by the Swedish regulator | Historical offshore network; no UKGC protection | Comparing a casino-and-sportsbook sister | Current ownership and availability require separate checks | Confirmed historical sister, not a current recommendation |
 Space Lilly Casino |
Mirage Corporation N.V. network named by the Swedish regulator | Historical offshore network; no UKGC protection | Comparing the group’s slots-led presentation | Shared ownership did not provide British safeguards | Confirmed historical sister only |
 Gudar Casino |
Mirage Corporation N.V. network named by the Swedish regulator | Historical offshore network; no UKGC protection | Understanding the group’s Nordic targeting | The network was ordered to stop unlicensed Swedish targeting | Confirmed historical sister only |
 Universal Slots |
Mirage Corporation N.V. network and shared affiliate programme | Historical offshore network; no UKGC protection | Tracing the network and affiliate relationship | An affiliate connection is not current licence protection | Strong historical relationship evidence |
 Casillion |
Mirage Corporation N.V. network named by the Swedish regulator | Historical offshore network; no UKGC protection | Comparing another casino in the documented group | Do not treat the old relationship as proof of current status | Confirmed historical sister only |
 Lucky Star Casino |
Mirage Corporation N.V. network named by the Swedish regulator | Historical offshore network; no UKGC protection | Comparing the group’s broader brand range | Similar names may now belong to unrelated casinos | Confirmed historical sister only |
 777 Slots Bay |
Mirage Corporation N.V. network named by the Swedish regulator | Historical offshore network; no UKGC protection | Comparing a slots-focused sister brand | Old reviews and domains are not evidence of a live licence | Confirmed historical sister only |
Which one should you choose? None of these historical sisters should be treated as a current UK alternative. They are useful for establishing who sat behind 4 King Slots, but a British player should choose only an active casino whose exact domain appears on the Gambling Commission register.
If you had an account or unresolved withdrawal, do not enter details at the former domain. Use retained registration emails, statements and payment references to identify the company and contact route that applied when the account was open. A closed offshore casino offers no UKGC complaints process or Financial Services Compensation Scheme protection.
The 4 King Slots lobby during its trading years, preserved by a casino review database: the crown logo, 750 EUR + 300 free spins welcome banner and 3,354-game count all date the capture. The live domain now forwards elsewhere.
The 4 King Slots Story: 2019 To March 2023
4 King Slots ran for roughly four years. The Internet Archive first recorded the domain in May 2019, and the industry database LCB logs the casino as closed in March 2023, which lines up with the point at which archived versions of the site stop rendering a working lobby. During its life it presented a medieval castles-and-crowns theme, headlined a welcome package of up to 750 EUR plus 300 free spins, and advertised a catalogue in the region of 3,300 games, with Evolution-powered live dealer tables alongside slots from studios such as Play’n GO and Pragmatic Play. The interface ran in English, German and Swedish, a language mix that says a lot about which grey markets the operator was courting, and later snapshots show cryptocurrency deposits being promoted heavily.
None of that changed its fundamental position: 4 King Slots never appeared on the UK Gambling Commission register, so at no point was it a lawful option for players in Britain. Historical casino listings associate it with Curaçao paperwork, while the Swedish regulator identified Mirage Corporation N.V. and Mirage Ent. Corporation (Cyprus) Limited as the companies behind the network in 2020. That evidence does not amount to a UK licence, and the brand was not maintained after 2023.
What Happened To The Domain Afterwards
The fate of 4kingslots.com after closure is a textbook example of why old casino bookmarks are dangerous. Rather than displaying a closure notice, the lapsed domain was picked up and now forwards visitors to a third-party casino directory with no connection to the original operator. A player following an old link, an aged affiliate banner or a stale search result would land somewhere that looks superficially plausible but has no relationship with the accounts, balances or support channels of the defunct casino. Any site that resurfaces under this name in future should be treated as an unrelated business trading on a dead brand’s search history.
Who Operated 4 King Slots?
Mirage Corporation N.V. is the best-supported operator identity. In its June 2020 prohibition decision, the Swedish regulator said 4 King Slots and ten other named gambling websites were owned by Mirage Corporation N.V. and the Cyprus company Mirage Ent. Corporation (Cyprus) Limited. It recorded Mirage Corporation N.V. under Curaçao company number 132869 and ordered the companies to stop providing unlicensed gambling to Sweden.
Some casino directories also named Versus Odds B.V., but they do not outweigh a regulator’s contemporaneous ownership finding. The precise contracts and payment entities may have changed during the casino’s life; the defensible conclusion is that 4 King Slots belonged to the Mirage network, not that its sister sites were unknowable.
Licence Position and What It Means for UK Players
4 King Slots never appeared on the UK Gambling Commission register and was listed as restricted for UK players by independent casino directories. Historical references to Curaçao do not create British consumer protection. UK players had no UKGC complaints route, no assurance that British marketing and bonus rules applied, and no British regulator able to intervene over a withheld withdrawal. Now that the casino is closed, there is no current gambling licence or playable service to assess.
Lessons For Picking A Casino Today
Three habits protect you from ending up on the next 4 King Slots. Verify the licence at source rather than trusting a footer badge: our guide to checking a casino licence shows how to confirm a domain against the Gambling Commission register in under a minute. Be suspicious of gigantic bonus packages, because a 750 EUR offer with several hundred spins attached almost always conceals heavy playthrough terms; UK-licensed sites have been barred from wagering requirements above 10x since January 2026, and our wagering requirements guide explains how to read the small print anywhere else. And learn how brand networks operate, since understanding who actually runs a casino is the single best predictor of how it will treat you; our white-label casinos guide covers exactly that.
4 King Slots FAQs
What are 4 King Slots’s sister sites?
Confirmed historical 4 King Slots sister sites include Horus Casino, W Casino Online, Space Lilly Casino, Gudar Casino, Universal Slots, Casillion, Lucky Star Casino and 777 Slots Bay. A Swedish regulator’s 2020 decision placed them in the same Mirage Corporation N.V. network.
Who owns 4 King Slots?
Mirage Corporation N.V. and Mirage Ent. Corporation (Cyprus) Limited were identified as the companies behind the network in a 2020 Swedish regulatory decision. There is no current operator because 4 King Slots is closed and its old domain no longer hosts the casino.
What licence does 4 King Slots operate on?
Historical reviews associate 4 King Slots with Curaçao licensing, but it never held a UK Gambling Commission licence. The casino is closed, so it has no current operating licence or live service.
Is 4 King Slots available to UK players?
No. It never held a British licence, independent listings restricted UK players, and the casino is now closed. Its former address forwards to an unrelated directory rather than a gambling site.
When did 4 King Slots close?
Industry database records log the closure in March 2023, roughly four years after the casino launched. Archived copies of the site stop showing a working lobby around the same time, and the domain was subsequently repurposed to forward to an unrelated directory site.
What did 4 King Slots offer while it was open?
While trading it promoted a medieval-themed lobby of around 3,300 games, a welcome package of up to 750 EUR plus 300 free spins, Evolution live dealer tables and, in its later years, cryptocurrency payments. It ran in English, German and Swedish and was never licensed for the UK market.