Onyx Slots Review and Bonus: Get up to 100 Wager Free Spins
Onyx Slots, the latest gem in the online casino world, dazzles with a wager-free welcome bonus of up to 100 free spins. The best part? No promo code is needed—simply use our registration link to get started! Get into the real money gamble with spins on the smash-hit slot Zeus vs Hades: Gods of War and enjoy keeping all your winnings, completely wager-free. Reviewed by the BritishGambler.co.uk team, Onyx Slots combines sleek black-and-white design with over 600 expertly curated games, including Instant Wins and Live Casino tables. Is this the jewel British players have been waiting for? Let’s find out!
What is Onyx Slots
Named after a precious stone, Onyx Slots is a brand-new online casino, unearthed only in 2024, that is seeking to become the jewel in the crown for British punters. The site is packed with the latest offerings from a strong roster of software firms and specialises in Live Casino tables, Instant Win games and the eponymous slots of the title.
There is a superb Onyx Slots free spins welcome bonus that competes with even the most generous rivals and a fully-integrated mobile version that holds over 600 titles and provides for great gaming-on-the-go. The design is simple and smooth, cleverly using the Onyx colours of black and white to merge seamlessly on the easy-to-navigate platform.
Onyx Slots is owned and operated by Grace Media Limited, which is licensed and regulated in the UK by the Gambling Commission under number 57869. A gem of a fabulous casino or a fugazi? Let’s find out!
Onyx Slots Casino Bonus 2025
| Onyx Slots Welcome Offer | Up to 100 wager-free free spins. |
| Bonus Structure | Deposit £10 to claim 20 free spins on Zeus vs Hades: Gods of War. Repeat up to 4 additional times for a total of 100 free spins. |
| Free Spins Value | £0.10 per spin, valid for Zeus vs Hades: Gods of War. |
| Key Terms | No wagering requirements. Maximum winnings capped at £100. |
| Ongoing Promotions | Deposit and wager £200 within 7 days, get 10 to 75 free spins on Big Bass Bonanza |
| Site | Onyxslots.com |
The Welcome Package gives you up to 100 Free Spins that are WAGER FREE. £10 will net you 20 Free Spins on the smash-hit slot Zeus v Hades Gods of War, and you can repeat this process four more times to collect 100 Free Spins in total. The promo code for Onyx Slots is not required, use our link to register.
How to Claim Onyx Slots Welcome Offer?
- Click the yellow “Join Now” tab and you will be registered and up and running in no time.
- Deposit at least £10 using any of the many banking options at your disposal.
- That’s it! Your 20 Free Spins will hit your account straight away.
Onyx Slots Key Bonus Terms
None! Any winnings you nab from your 20 Free Spins you get to keep and can withdraw as cash straight away. The only requirement is that you use your Free Spins within 5 days and total permitted winnings from the Free Spins are capped at £100.
Explore new casino apps and offers here, and check out our promo codes and bonuses.
Onyx Slots other Promotions
You are guaranteed a prize when you unlock and spin the Weekly Wheel. To grab your Free Spin of the Wheel, just deposit and wager at least £200 in the previous 7 days. The minimum prize is 10 Free Spins and the maximum is 75 Free Spins to use on the fishy wonder Big Bass Bonanza.
Onyx Slots and Casino Games
Where better to start than with the “Hot Slots” chapter. Packed with popular choices, you will love exciting titles like Shaman’s Dream and Fireball Inferno. “New” games arrive all the time and this section is ideal for the inquisitive punter. Current favourites include Zodiac Lantern Rabbit and Hell of a Deal.
The Instant Win collection is a mix of quick-play games and Scratchcards and has exciting features like Crack the Code Instant Tap and Donkey Dash.
Onyx Live Casino Tables
The group of Live games is modest but has something for most players. Among the most-played are Dealer’s Club Roulette, Classic Blackjack and the eastern magic of Andar Bahar. Game Shows are a bit thin on the ground, but the rarely seen Cricket War is bound to bowl you over and is well worth padding up for.
Onyx Slots Other Features
The Welcome Package is a real winner. Ok, so if you want the full 100 Free Spins, you will need to whack in 50, but the lack of any wagering requirement is fantastic. The depth of the site isn’t as impressive as many rivals (the industry average for games is somewhere between 1,000 and 1,500), so a mere 600 slots may seem a bit under-whelming. But these games have been chosen well and there aren’t many duds in there. There is also a cracking customer support set-up that easily outshines most of the industry.
Our overall opinion?
We are very taken with Onyx Slots; a simple but effective casino that delivers on its promise and enhances the package with some superb freebies and first-class back-up.
Onyx Customer Support and Payment Methods
Onyx Slots are proud to offer support “365 days of the year” and the Live Chat facility can be easily accessed by clicking the icon at the bottom right of the page. The service operates 7 days a week between 8am-4am. Alternatively, you can contact via text message on +447458159505. There is also an email option if you prefer (onyxslots@gracemediasupport.com).
There are a decent number of deposit options, including VISA Debit, Trustly and Pay By Mobile (which allows you to fund your account direct from your mobile phone, with the funds being added to your monthly bill; a great innovation). Deposits are all free and instant. Withdrawals are all processed within 24 hours and then take up to 48 hours more to reach your account. Note that if your withdrawal is under £30 there will be a £1.50 charge levied.
Here is our list of good alternatives to Onyx Slots: try no-wager sites, minimum deposit casinos, and bet365 Games if you like slots.
