21Prive Sister Sites

21Prive sister sites include directly operated White Hat Gaming casinos Hello Casino, Diamond 7 Casino, Skol Casino and Slotnite, plus white-label partners such as 21 Casino, Slot Planet, Barz Casino and Spin Rider. The important distinction is that these sites share White Hat Gaming Limited’s active UKGC account 52894, but white-label brands can have separate owners and commercial terms.

21Prive Sister Sites Compared

White Hat Gaming’s register separates its portfolio into seven active house domains, eight inactive domains and 25 white labels. That is more useful than treating every name on the account as an identical sister: the direct brands are the closest operational comparisons, while white-label partners mainly share platform and licence cover.

21 Casino

21 Casino is the appropriately named first sister casino on our list, following with the 21 theme. 21 is used often as the main theme in online casino sites as it is both seen as a lucky number for some in gambling and also is the alternative name for the popular card game Blackjack. 21 Casino is designed with a black and gold site that is also a common choice for this type of casino as it is slick, and the gold represents money and wealth that you will hopefully take away from this site.

Slot Planet

Enjoy slots that are out of this world at Slot Planet, our next fellow White Hat brand. This casino site is one of the oldest in the list as it was opened all the way back in 2005, but by just looking at the site you would not be able to tell, as Slot Planet has definitely kept up the modern standards of online casinos with their crisp graphics and futuristic design. There are also over 1400 games for you to choose from giving you a choice of games from all over the universe. This is definitely a casino site that is out of this world!

Fruity Casa

Fruity Casa has appeared in older White Hat portfolio lists, but it is not one of the 40 domains currently shown on UKGC account 52894. We therefore do not rank it as a confirmed current 21Prive sister site. Check the live footer and licence link before treating any returning Fruity Casa domain as UK licensed.

Mainstage Bingo

To contrast the modern site designs that some of the other sister site have, we come to Mainstage Bingo, which looks like it was plucked right out of the noughties. Even though this casino site was only established in 2013 it looks a lot older and comes across as dated, but that is not to say the content within the site is not more than promising. However, as you take a look at the list of games, you will find that there are actually no bingo games available at Mainstage Bingo, and only the usual casino games – what a waste of a name!

Slotnite

Next up we have Slotnite, the cartoon casino site that is themed around a very popular game that many of you might know – Fortnite. As well as the similar names, the colours and design of the site are also very close to that of Fortnite. Even more, this site Slotnite uses similar jargon that will be familiar to anyone who has played Fortnite themselves. This is definitely a cheeky way to theme your casino around as it will be recognised by many people, however, some of the Fortnite audience might be a tad young for a site like Slotnite.

Skol Casino

Skol Casino is a direct White Hat Gaming domain and remains active on account 52894. It is a stronger ownership match than the white-label names in this guide, although its visual identity is brighter and less restrained than 21Prive. Compare the live offer rather than relying on old game-count claims, because providers and catalogues change.

Barz Casino

Barz Casino is currently recorded as a white label on White Hat Gaming account 52894. That confirms shared UK licence cover and platform involvement, but not common brand ownership. Its cleaner purple interface makes it a useful comparison for 21Prive players who want familiar technology with a different front end.

Spin Rider

Spin Rider is our next White Hat cousin, and this is a red and black themed site that is slick and will definitely be a favourite for many players down to its design alone. This casino is also fairly new with it being established in 2018 meaning it has been open for less than five years. The big, red play button is definitely something that catches your attention and the games on the home page are displayed clearly for simple and easy access. Spin Rider is licensed by the UK Gambling Commission for UK players so it is safe and reliable.

Diamond 7 Casino

The next fellow sister brand on our list is Diamond 7 Casino, a blue diamond themed casino site. The number 7 as well as 21 is seen a lot in online casinos as it is regarded as a lucky number for lots of people, and diamonds are one thing you might want to win from a site like this. Something unique about Diamond 7 Casino is that it has spaces for you to bookmark your favourite games at the top of the page so they are always easily accessible, it almost makes this site customisable which will be a winner for many players.

Hello Casino

To end off this list we are saying hello to our final White Hat stablemate, Hello Casino. This casino site was established in 2012, so it has been around for a whole decade now. Hello Casino has a sophisticated looking design with purple and blues used throughout the mainly black casino site. There is a seemingly-endless number of games to choose from as well as a search function for those who know exactly what they are looking for. If you are looking for a welcoming casino to visit then Hello Casino might be the one for you.

21Prive Licence, Cashier And Bonus Risks

21Prive launched in 2014 and its domain remains active under White Hat Gaming Limited. The same account currently lists 40 domains: seven active White Hat domains, eight inactive domains and 25 white labels. Reel Island and Karamba are among the inactive records, so they should not be promoted as live UK alternatives even though older sister-site lists still include them.

The current 21Prive website blocks automated access with a human-verification screen, so we have not repeated an unverified welcome offer or payment timetable. Check the cashier and promotion terms while logged out, then confirm the same details after registration. Since 19 January 2026, a UK incentive cannot apply more than 10x wagering to bonus funds, but expiry dates, game weighting, maximum winnings and payment-method exclusions still matter.

• For the closest operator match: compare Hello Casino or Diamond 7 first.
• For a different brand owner on familiar infrastructure: compare 21 Casino, Slot Planet or Barz.
• Before withdrawing: complete identity checks and confirm whether the cashier requires funds to return to the original payment method.
• Do not use an old domain list: a past White Hat relationship does not prove that a casino is still active for UK players.

Which 21Prive Sister Site Should You Choose?

Hello Casino is our first choice because it is an active, directly operated White Hat domain and gives the cleanest like-for-like comparison. Diamond 7 is the other strong direct alternative. Choose 21 Casino for the closest premium theme, Slot Planet for a clearer slots focus, or Spin Rider if you mainly want a more energetic visual style.

21Prive FAQ

What are 21Prive’s closest sister sites?

The closest current sisters are White Hat Gaming’s directly operated active domains, including Hello Casino, Diamond 7 Casino, Skol Casino, Slotnite and Mainstage Bingo. White-label sites such as 21 Casino, Slot Planet, Barz and Spin Rider share the UK licence platform but may have different owners.

Who operates 21Prive?

21Prive is operated by White Hat Gaming Limited under UKGC account 52894. The 21prive.com domain is listed as active.

Are Reel Island and Karamba still 21Prive sister sites?

Both reelisland.com and karamba.com are currently marked inactive on White Hat Gaming’s UKGC account. Karamba’s separate .co.uk record is listed as a white label, so the exact domain and status must be checked rather than treating every old brand reference as current.

What does white label mean on the 21Prive licence?

A white-label domain uses White Hat Gaming’s licensed platform or regulatory cover but can have a separate brand owner and different bonus, account and commercial rules. It is a platform relationship, not automatic proof that White Hat owns the brand.

Can I claim welcome offers at several White Hat casinos?

Do not assume repeated eligibility. Sister-site terms can link customers by identity, address, device or payment method, and white-label operators may apply their own exclusions. Check the current terms before depositing.

Are 21Prive and its UK sister sites on GamStop?

21Prive and the active or white-label UK domains on account 52894 must participate in GamStop. An active GamStop exclusion applies across participating UK-licensed operators.