Onyx Slots sister sites in 2026 include casinos like SlotStrike, Slotty Slots, and PlayUK. All of these sites belong to the Grace Media casino family, a well-established and reputable casino platform in the UK.
Our team has personally tested all Onyx gaming casinos to verify their reliability and quality. We reviewed the bonuses, games, payment methods, and overall user experience to ensure the information in this article is trustworthy and accurate.
| 1st deposit bonus | 100%/£100 |
|---|---|
| No deposit bonus | - |
| Minimum deposit | £10 |
| Bonus code | |
| Number of games | 650 |
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The table below shows each Onyx Slots sister site along with their welcome bonuses and launch dates.
| Online Casino | Bonus Details | Launched |
|---|---|---|
| Cosmic Spins | 100%/£100 | 2019 |
| Vegas Wins | 100%/£100 | 2019 |
| Jackpot Mobile Casino | 100%/£100 | 2015 |
| PlayUK | 100%/£100 | 2018 |
| Fortune Mobile Casino | 100%/£100 | 2019 |
| Hot Streak Casino | 100%/£100 | 2021 |
| Lady Luckmore | 100%/£100 | 2025 |
| Royale Lounge | 100%/£200 | 2025 |
If you love the thrill of spinning reels and chasing jackpots, check out our top 3 picks from the Onyx Slots sister sites! We've reviewed each site, breaking down their games, payment methods, overall usability, and more.
Cosmic Spins stands out as a low-deposit PayPal casino, making online gaming accessible and convenient. I was able to fund my account with as little as £5 via PayPal, enjoying a seamless and fast transaction process without any banking issues. This approach is perfect for casual gamers or anyone wanting to test the site before committing big, all while keeping deposits safe and secure.
Vegas Wins combines traditional and innovative ways to assist players. Beyond the usual email support and a convenient live chat, it stands out by offering SMS customer support, which is a rare touch in online casinos. No matter your issue, help is fast, personal, and designed to keep your gaming experience as enjoyable as possible.
Jackpot Mobile Casino is perfect for players who love the flexibility of gaming anywhere, anytime. This casino combines the thrill of gambling with a mobile-first design that keeps your favourite games just a tap away. Jackpot Mobile Casino supports all modern devices from Apple iPhones to Android tablets, which is not guaranteed at every British operator.
Onyx Slots is owned and operated by Grace Media, a well-known name behind the scenes in the online casino industry. It's a platform provider and casino operator that's been powering and managing online casinos for years.
Grace Media launched in 2019, and today, it operates multiple branded casinos under the UKGC license. Grace Media casino sites are best known for their user-friendly layouts and game libraries where the focus is on quality, not quantity.
Onyx Slots and its sister sites share the same platform, but each site is distinguished by a few key factors.
Diverse game offering: Although relatively small, the game libraries include crash games, jackpot titles, table games, and drop & wins
The experience is smooth as the games load up in seconds, and the account creation took only 1-2 minutes during our tests
Each site provides live chat customer support. Vegas Wins goes beyond by also offering SMS support.
Similar layouts might feel dull
Strict bonus terms (40x wagering, winning caps)
Onyx Slots and its sister sites are all built and operated on the same Grace Media platform, which means players can expect a familiar experience across all sister sites. However, while the core mechanics remain consistent, each site adds its own unique twist to the table.
The first thing that sets Onyx Gaming casinos apart is their visual identity and theme. For example, Cosmic Spins uses a futuristic space aesthetic with neon galaxy backdrops and animated star fields, while Vegas Wins captures the bright neon lights and casino vibe of Las Vegas. Jackpot Mobile Casino.
Despite these differences, the underlying platform is consistent across all Onyx Slots sister sites. Menus and game libraries are organised in the same way, making it simple for players to switch between casinos without having to relearn navigation.
Bonuses and promotions across the sister sites are quite consistent, as they follow the same core structure set by the operator. Welcome offers tend to be very similar, though small differences may appear in bonus values, wagering requirements, or promotional frequency.
For example, instead of offering first deposit bonus spins, these sites usually offer a deposit match offer for new customers. I am not the biggest fan of bonus spins, so I don't mind their absence at Grace Media casinos. In my opinion, the best bonuses offer a 100% deposit match or better, with a low 10-20x wagering.
All of the Onyx Slots sister sites feature new online slots UK by weekly updating the latest releases on their catalogue. The game selections differ mainly in the availability of different game types.
For example, Hot Streak Casino features 5+ crash games, whereas Vegas Wins offers 0. On the other hand, Vegas Wins offers more jackpots with a collection of 30+ jackpot games. This kind of variability across the Onyx Gaming casinos is something that I appreciate.
All casinos like Onyx Slots follow similar banking procedures with a focus on offering trustworthy payment methods like debit cards and Trustly. While the lists of available methods are nearly identical, the minimum deposit amounts differ from £5 to £10 limits.
Additionally, these sites come with a £1.50 withdrawal fee on cashouts less than £30. It's not ideal, but it's something to keep in mind when choosing a new site.
