Onyx Slots

Onyx Slots is an online casino that offers free spins with no wagering requirements and one of the lowest first deposit amounts available among no wagering casinos. 

With a game lobby featuring the latest slot and table games from trusted software providers, this casino stands among the best new casino sites that offer a welcome bonus with no wagering.

Bonuses and Promotions

The casino rewards new players from the UK with a no-wagering bonus. Create a new account and make a minimum deposit to claim the wager-free spins.

No bonus codes are needed to claim the free spins, which can be used to wager on Big Bass Bonanza by Pragmatic Play.

The casino runs regular match bonuses, boosts, bonus spins, and cash prizes, which can be found under the bonus section in My Account.

Current Promotion July 2025

Onyx Slots

Bonus: Wager Free Spins Welcome Package

Promotions: no wager bonus

Free Spins: 50 Bonus Spins

Games Applicable: Big Bass Bonanza

Wager Requirement: None

licensed by: UKGC

Minimum Deposit: £10

Visit

Onyx Slots Terms and Conditions: New Customers Only. $/€/£10 Min. Deposit and Wager. 20 Free Spins will be allocated for each of your first 5 deposits of $/€/£10 or more. Bonus valid 48 hours from receipt. Max conversion: $/€/£100. Withdrawal requests void all active/pending bonuses. Full terms apply 18+ T&C's | BeGambleAware® #AD.

How to Register an Account and Claim the Bonus

To login at Onyx Slots you will need to have a account, To create a new account and claim the bonus, click the "Visit" button above and follow these easy steps:

1. Click the "Register" or "Claim" button.
2. Fill out the form with your gender, name, date of birth, phone number, and email.
3. Accept the terms and conditions.
4. Once your account is verified and created, make a minimum deposit to claim the no-wagering bonus.
5. After making the minimum deposit, you can claim the bonus once it has been activated.

We recommend claiming the bonus only after your account is created and you can successfully login on the website.

Game Lobby

At Onyx Slots, players can choose from a wide range of casino games in the game lobby, including slots, table games, and live games.

The slot selection features over 600, including Megaways and progressive jackpots.

Table games include blackjack, baccarat, roulette, and poker, hosted by NetEnt and Pragmatic Play, which are well-known providers with a long track record in the gambling industry.

The live casino section is streamed in HD and features blackjack, roulette, and live game shows, all hosted by leading providers like Evolution Gaming and Pragmatic Play.

Featured Games July 2025

Book of Oz

Book of Oz is an exciting game that is a collaboration between Microgaming and Triple Edge Studios. Almost completely emerald green and a great nod to the film, this game offers free spins, respins and the choice to spin one reel at a time.

Book of Oz Features:

Features

• Free Spins
• Respins
• Scatter Symbols

Type

Stats

• Release Date: 2018-11-18
• RTP (Return to Players): %
• Reels: 5
• Min Bet: £
• Max Bet: £ (in UK 5£)
• Provider: Microgaming
• Paylines: 10

Loot And Labyrinths

Throw the dice across the reels and join the magician in this RPG-inspired slot. It's packed with magic and the chance for big wins.

Loot And Labyrinths Features:

Features

• Bonus Wheels
• Wilds
• Free Spins
• Multipliers
• Mystery Symbols
• Autoplay

Type

• Theme: Modern
• Volatility: Medium
• Volatility: High
• Game Type: Progressive Jackpots

Stats

• Release Date: 2025-04-03
• RTP (Return to Players): 96.34%
• Reels: 5
• Min Bet: 0.2£
• Max Bet: 200£ (in UK 5£)
• Provider: Play'n GO
• Paylines: 20

Lady Of Fortune

In this slot, we’ll try our luck with Lady of Fortune. If you’re among the lucky ones, you can take a chance on the Gamble Feature for the possibility of an even bigger payout.

Lady Of Fortune Features:

Features

• Wilds
• Multipliers
• Autoplay
• Scatter Symbols
• Gamble

Type

• Volatility: Medium
• Volatility: Low

Stats

• Release Date: 2024-10-03
• RTP (Return to Players): 96.2%
• Reels: 5
• Min Bet: 0.15£
• Max Bet: 60£ (in UK 5£)
• Provider: Play'n GO
• Paylines: 15

Mafia Gold

Mafia Gold by Play’n GO is set in the world of a classic mafia theme, during the early years of the mafia era. This video slot is packed with unique bonus features, high-quality game art, and smooth gameplay, launched on August 1, 2024.

Mafia Gold Features:

Features

• Wilds
• Multipliers
• Instant Wins
• Free Spins
• Expanding Wild
• Mystery Symbols
• Scatter Symbols

Type

• Volatility: High
• Theme: Modern

Stats

• Release Date: 2024-08-01
• RTP (Return to Players): 96.2%
• Reels: 5
• Min Bet: 0.1£
• Max Bet: 50£ (in UK 5£)
• Provider: Play'n GO
• Paylines: 30

Temple of Tollan Slot

Temple of Tollan Slot is a unique game by Play’n GO that takes you deep into an Aztec-themed world, where wins are formed through a cluster pays mechanic. It stands out as one of the most original and high-quality slots available at new casino sites that feature Play’n GO titles.

Temple of Tollan Slot Features:

Features

• Autoplay
• Mystery Symbols
• Expanding Symbols
• Multipliers
• Free Spins
• Instant Wins

Type

• Volatility: High
• Theme: Modern

Stats

• Release Date: 2024-06-24
• RTP (Return to Players): 94.2%
• Reels: 7
• Min Bet: 0.1£
• Max Bet: 100£ (in UK 5£)
• Provider: Play'n GO
• Paylines: 1

Who Supplies Its Games?

The casino partners with leading software providers, such as NetEnt, Play'n GO, Yggdrasil, Pragmatic Play, Thunderkick, Microgaming, EGT, with Microgaming hosting the best games.

This partnership ensures a high-quality gaming experience that matches the overall theme of the casino, offering visually appealing and innovative games with bonus features like free spins and re-spins.

These software providers are fully RTP-verified by third parties and hold licenses.

What Are the RTP Rates?

The casino provides competitive RTP rates for its games, with most slots and table games featuring RTP percentages above 95.98%. Big Bass Bonanza by Pragmatic Play, available in the game lobby and included in the no-wager bonus, boasts an impressive RTP of 96.71%.

Payment Methods

The casino offers various payment methods, including credit cards (Visa and Mastercard) and e-wallets (Skrill and Neteller), all with no fees and fast, nearly instant withdrawals.

At Onyx Slots, withdrawals are subject to a minimum deposit and are processed within 24 hours. Players must have a verified account before requesting a withdrawal and may be required to upload documents for verification.

Is it Legit?

Onyx Slots is a licensed casino that holds a gambling license from the UK Gambling Commission and promotes safe gambling with features such as deposit limits and self-exclusion tools. 

Its no wagering bonus is one of the most player-friendly bonuses available online, placing this casino alongside the most legit and safe casinos in the UK when it comes to both games and bonuses for players.

Customer Support

To contact customer support, the following alternatives are available 24/7: email and live chat, along with a helpful FAQ section.

Live chat is not available 24/7, so be sure to check the opening hours based on your location.

Support for withdrawals or payments may have a longer response time, depending on the nature of your query.

Our Review

The highlight of our review of Onyx Slots is its no wagering bonus, which features one of the lowest minimum deposit requirements available online today.

Additionally, its focus on the latest slot games, fast payment options, and a secure environment that promotes responsible gambling make it a strong choice for any player looking for a new slot site.