Onyx Slots

Last updated: July 12, 2025

Onyx Slots is a slot site in 2025 that features some of the most well-known software providers Netent, Play'n GO, Pragmatic Play, Microgaming, Red tiger, Irondog and Foxium.

This casino offers bonuses such as no wager bonus, which many slot sites provide to new players when creating a new account.

Bonuses and Promotions

Onyx Slots offers a slot bonus that players can claim once a account is fully verffied and a minimum deposit is done.

The casino offers both slot signup bonuses and bonuses for players who have already created an account. These bonuses are no wager bonus, which can be found at any new slot site in 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.

No Wagering Bonus

The casino offers a no-wagering bonus, providing free spins with no wagering requirements for new players on selected slots.

To claim the free spins, players simply need to create a new account, make a minimum deposit, and use it on one of the selected no-wagering slots.

No-wagering slots are an excellent way to enjoy extra bonus spins without the hassle of wagering requirements.

The no wagering slot selected by the casino is Big Bass Bonanza .

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 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

The game lobby at Onyx Slots hosts slot games in all varriants, all accessible directly in the browser on any device, from mobile to desktop no need to download any apps.

Featured Casino Games July 2025

Busters Bones

Buster's Bones takes us to the wild, wild West, where Buster the dog and his companion serve as the sheriffs in town.

Busters Bones Features:

Features

• Free Spins
• Multipliers
• Autoplay

Type

• Theme: Modern
• Volatility: Medium
• Volatility: High
• Game type: Megaway Slots
• Game Type: Cascade Slots
• Has Bonus Feature

Stats

• Release Date: 2023-04-20
• RTP (Return to Players): 94.04%
• Min Bet: £
• Max Bet: £ (in UK 5£)
• Provider: NetEnt

Boat Bonanza Down Under

The fishing fleet has set sail for the warmer waters of Australia, but they’ll have to be wary down under. With some pretty big fish about they’ll need help to land some bonza catches.

Boat Bonanza Down Under Features:

Features

• Free Spins
• Multipliers
• sticky Symbols
• Scatter Symbols
• Instant Wins
• Bonus Wheels

Type

• Theme: Modern
• Volatility: Medium
• Volatility: High

Stats

• Release Date:
• RTP (Return to Players): 96%%
• Reels: 5
• Min Bet: 0.10£
• Max Bet: 50£ (in UK 5£)
• Provider: NetEnt
• Paylines: 12

Twin Spin Deluxe

Looking for an Extra Delux slot with big payouts and thrilling bonus rounds? Spin the reels on this top-rated slot and see if luck's on your side!

Twin Spin Deluxe Features:

Features

• Free Spins
• Wilds
• Scatter Symbols
• Autoplay

Type

• Theme: Modern
• Volatility: Medium

Stats

• Release Date: 2018-06-17
• RTP (Return to Players): 96.61%
• Reels: 6
• Min Bet: 0.10£
• Max Bet: 200£ (in UK 5£)
• Provider: NetEnt
• Paylines: 243

Boat Bonanza Rider

Grab your life vest and tighten your grip – you’re in for a wild ride on the open sea. In Boat Bonanza Rider, the fishing crew has ditched their usual haunts for something far less predictable. There are no buoys, no bait... just nerves of steel and the lure of escalating rewards.

Boat Bonanza Rider Features:

Features

• Autoplay
• Multipliers

Type

• Theme: Modern
• Volatility: Medium
• Volatility: High
• Game Type: Crash

Stats

• Release Date: 2025-05-27
• RTP (Return to Players): 97.7%
• Reels: 6
• Min Bet: 0.1£
• Max Bet: 100£
• Provider: Play'n GO

Pros

• Wagering Free Free Welcome Bonus
• Top For Slots
• Fully Licensed

Is it Legit?

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

Faq

Do free spins for a no wagering bonus come with a wagering requirement?

No, the free spins at Onyx Slots come with no wagering requirement. Once all free spins have been used, players can instantly withdraw any winnings from the free spins.

How do I claim the free spins for the no wagering bonus?

To claim the free spins in the no wagering bonus, you need to create an account and make a minimum deposit. Once the minimum deposit is wagered in the casino, you will receive the free spins in the banking section of the website.

Are the free spins non-cashable?

Yes, the free spins are non-cashable, meaning that players will need to wager all the free spins. If the free spins come with no wagering requirement, players can instantly withdraw any winnings from the free spins.