Onyx Slots Sister Site
Onyx Slots, a siter site hosted by the Grace Media Limited platform, operates alongside several other sister sites.
Siter Sites hosted by Grace Media Limited
Hotstreak Casino
Deposit £20 & Get 100 No Wager Free Spins
Is Licensed By: UKGC
terms and conditions
First deposit only. Min deposit £20. Min wager £20 on slots. Max 100 free spins. Max one claim. Spin credited within 7 days after deposit. Spins valid on Big Bass Splash. Spin Value 10p . Full T&Cs Apply 18+
PlayUK Casino
Welcome Bonus up to £100
Is Licensed By: UKGC
terms and conditions
First deposit only. 100% Bonus Match up to £100. Min deposit £10. Credited within 7 days. 40x wagering, £100 max conversion. Max one claim per player. 18+ T&C apply.
Vegas Wins Casino
Welcome Bonus up to £500
Is Licensed By: UKGC
terms and conditions
New players only, First 3 deposits only. Min deposit £10. Max total bonus £500 and 150 spins. 30x wagering (dep + bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots. T&C’s appl
Cosmic Spins Casino
100% up to £100 Welcome Bonus
Is Licensed By: UKGC
terms and conditions
First deposit only. Min deposit £10. 100% Bonus Match on 1st deposit, max £100 bonus; 100 bonus spins on Starburst. 40x wagering(dep+bonus). 40x on spins, 4x conversion, bonus valid on selected slots. Full T&Cs apply. #AD, 18+ only, begambleaware.org
Breakdown of Onyx Slots
- Casino Name: Onyx Slots
- Launch Date: 2023
- Parent Company: Grace Media Limited
- Payment: Visa , Mastercard , Trustly , Paypal , Interac
- Software Providers: Netent , Playngo , Pragmatic , Microgaming , Redtiger , Irondog , Foxium
- Games: Slots , Livecasino , Slingo
Current Promotion
Pros
- Wagering Free Free Welcome Bonus
- Top For Slots
- Fully Licensed
Video Slots featured at Onyx Slots as of October 2025
Vikings
Tag along with the Vikings as they cross the oceans to conquer Britain, hunting for hidden treasures and massive wins. What jackpots do the wild slots hold? Let’s get spinning and uncover your fortune!
Vikings Features:
- Free Spins
- Expanding Rows
- Expanding Symbols
- Wilds
- Mystery Symbols
- Scatter Symbols
- Autoplay
- Theme: Modern
- Volatility: High
- Volatility: Medium
- Release Date: 2018-11-22
- RTP (Return to Players): 96.05%
- Reels: 5
- Min Bet: 0.20£
- Max Bet: 100£ (in UK 5£)
- Provider: NetEnt
- Paylines: 243
Spinnin' Records: Raving Reels
In Spinnin’ Records Raving Reels, a rave-chasing heroine follows the beat across neon dancefloors and sunlit beaches as each spin unlocks fresh symbols, bonus features, and festival vibes.
Spinnin' Records: Raving Reels Features:
- Multipliers
- Wilds
- Free Spins
- Respins
- Volatility: Medium
- Theme: Modern
- Release Date: 2025-08-21
- RTP (Return to Players): 96.2%
- Reels: 3 - 5
- Min Bet: 0.05£
- Max Bet: 100£ (in UK 5£)
- Provider: Play'n GO
- Paylines: 2
Reactoonz
Reactoonz is an alien themed slot which uses a cascading reels where you can win again and again from each spin. With each win, you charge up the meters to randomly trigger 1 of 5 Quantum features!
Reactoonz Features:
- Free Spins
- Respins
- Autoplay
- Game Type: Cascade Slots
- Volatility: High
- Release Date: 2017-09-24
- RTP (Return to Players): 95%
- Reels: 7
- Min Bet: 50£
- Max Bet: 0.2£ (in UK 5£)
- Provider: Play'n GO
Lab of Madness
Love monster-themed slots? Frankenstein walking wilds are back in style with Lab of Madness. Get ready for massive multiplier wins and thrilling experiences
Lab of Madness Features:
- Wilds
- Free Spins
- Walking Wilds
- Theme: Modern
- Volatility: High
- Release Date: 2025-09-18
- RTP (Return to Players): 96.23%
- Reels: 5
- Min Bet: 0.2£
- Max Bet: 100£ (in UK 5£)
- Provider: Play'n GO
- Paylines: 20
Rise Of Olympus
Ascend to the top of Mount Olympus, the realm of the Greek gods, with Rise of Olympus Origins, a captivating 5x5 grid slot from Play’n GO
Rise Of Olympus Features:
- Wilds
- Free Spins
- Mystery Symbols
- Autoplay
- Expanding Wild
- Expanding Rows
- Volatility: High
- Theme: Modern
- Release Date: 2024-07-25
- RTP (Return to Players): %
- Min Bet: 0.1£
- Max Bet: 100£ (in UK 5£)
- Provider: Play'n GO
- Paylines: 1