Onyx Slots Review

Onyx Slots is a relatively new UK-focused online casino aimed at slot fans who want a big game library under a UK Gambling Commission licence. It is operated by Grace Media (Gibraltar) Limited and runs on a standard UK casino platform with a heavy emphasis on video slots, Megaways and jackpots, plus a smaller live casino section. There is no recorded transfer history for the domain, so you’re dealing with a fresh brand rather than a re-skinned older site.

The casino itself only launched in 2024, so it’s still building a reputation. Independent review sites have flagged mixed feedback, including some complaints around terms and customer service, so this is one of those brands where you’ll want to read the fine print and start cautiously rather than going in heavy from day one.

Games and Betting at Onyx Slots

The clue’s in the name: Onyx Slots is built first and foremost for slot players. Reports from external reviewers suggest more than 600 games, which puts it in the mid-range compared with the biggest UK casinos, but still enough to keep most players busy.

Slots

The slots section is the main reason to sign up here. You can expect a mix of:

• Classic fruit-style and simple 3-reel slots
• Modern video slots with features, free spins and bonus rounds
• Megaways titles with changing reel layouts and higher hit frequency
• Jackpot slots, including progressive-style pots on some games

Games are supplied by well-known studios such as NetEnt, Pragmatic Play, Eyecon, Big Time Gaming and other mainstream providers often seen at UK-licensed casinos. That means you’re likely to find many of the usual favourites alongside newer releases. RTPs are set by the providers, but, as with most UK sites, some games may run at different RTP versions, so it’s worth checking the in-game info screens if you care about that detail.

Table Games and Live Casino

Onyx Slots does include a live casino area, but it’s secondary to the slots offering. The live section typically covers:

• Roulette and blackjack tables in various limits
• Game-show style titles like Boom City and similar
• Alternative titles such as Dragon Tiger or Sic Bo

For pure table game grinders, the choice is acceptable but not outstanding. If you mainly want a deep blackjack or roulette lobby with lots of side bets and VIP tables, there are stronger specialist live casinos in the UK market. Here, the live games feel more like an add-on for slot players who occasionally fancy a change.

Site Layout and Mobile Experience

The site uses a fairly standard modern casino layout: game tiles, search bar, and filters by category (slots, jackpots, live, etc.). Navigation is straightforward, and most players will find what they want quickly enough.

On mobile, Onyx Slots runs through the browser rather than a dedicated downloadable app (at least based on current public information). That’s normal for this type of white-label style operation. The mobile site is optimised for smaller screens, and the majority of the slot catalogue is available on phones and tablets. As with most HTML5 casinos, performance will depend partly on your device and connection, but there’s no indication of any major mobile issues beyond the usual loading times for heavier live casino streams.

Payment Options

Specific banking details for Onyx Slots are not fully documented publicly, but as a UK-licensed casino operated by a large group, it’s reasonable to expect the standard spread of methods common on similar sites. Typically, that means:

• Debit cards (Visa, Mastercard) as the core option for UK players
• Possibly e-wallets such as PayPal, Skrill or Neteller, depending on current policy
• Prepaid or voucher-style methods (e.g. Paysafecard) for deposits only

Withdrawals at UKGC-licensed casinos are usually processed back to the original payment method where possible, in line with anti-money-laundering rules. Processing times can vary: internal approval may take anything from a few hours up to a couple of working days, then you’ve got the banking network on top. Reviews of similar brands suggest that you shouldn’t expect “instant” cash-outs across the board, but nor is it unusually slow compared with the mid-tier UK market.

As with any new site, it’s sensible to:

• Verify your account early (KYC) to avoid delays
• Start with smaller withdrawals until you’re comfortable with how quickly they pay

Safety and Licensing

Onyx Slots operates under a UK Gambling Commission operating licence, which means it has to follow strict rules on player verification, funds segregation and fair gaming. The site also sits under a wider group infrastructure that includes standard responsible gambling tools: deposit limits, time-outs, self-exclusion and access to external support organisations.

That said, independent review sites have given Onyx Slots a middling safety score, pointing to some unresolved complaints and terms that may feel restrictive to some players. A UKGC licence guarantees a certain baseline of oversight, but it doesn’t automatically mean the customer experience is flawless, so caution and careful reading of the terms is advised.

Should You Play at Onyx Slots?

If you’re mainly a slot player who likes a decent range of mainstream titles under a UK licence, Onyx Slots is worth a look, especially if you’re curious about newer brands. The strengths are:

• Solid slot line-up from recognised providers
• UKGC licensing and standard responsible gambling tools
• Mobile-friendly site with browser-based play

The drawbacks to keep in mind:

• New brand with a relatively short track record
• Mixed third-party reviews, including complaints about fairness of terms and dispute handling
• Live casino and table games are more “supporting cast” than main attraction

In practical terms, Onyx Slots suits casual and mid-stakes UK slot players who want variety and are comfortable trying a newer site, provided they take the time to understand the rules. If you’re very sensitive to reputation and want a long-established brand with a spotless history, you may prefer to stick to bigger-name casinos and keep Onyx Slots as a secondary option rather than your main account.