Onyx Slots Sister Site
Onyx Slots, a online casino 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 Logo
- Software Providers: Netent , Playngo , Pragmatic , Microgaming , Redtiger , Irondog , Foxium
- Games: Slots , Live Dealer , Slingo
Current Promotion
Pros
- Wagering Free Free Welcome Bonus
- Top For Slots
- Fully Licensed
Video Slots featured at Onyx Slots as of October 2025
Joker Pro
Take a spin on one of the simpler slot machines, offering straightforward gameplay and the chance to win big.
Joker Pro Features:
- Respins
- Wilds
- Multipliers
- Theme: Classic
- Volatility: Medium
- Release Date: 2017-01-02
- RTP (Return to Players): 96.8%
- Reels: 5
- Min Bet: 0.2£
- Max Bet: 100£ (in UK 5£)
- Provider: NetEnt
- Paylines: 10
Viking Runecraft
Embark on an Asgard adventure packed with epic reels, massive wins, and mighty vikings wielding runecraft magic across the reels.
Viking Runecraft Features:
- Free Spins
- Autoplay
- Wilds
- Volatility: High
- Game type: Megaway Slots
- Release Date: 2017-08-27
- RTP (Return to Players): 96.71%
- Reels: 7
- Min Bet: 0.1£
- Max Bet: 100£ (in UK 5£)
- Provider: Play'n GO
Berry Burst MAX
Hit the max jackpot with a whopping 6000x your stake, if you're lucky enough to trigger this super mega win on the reels!
Berry Burst MAX Features:
- Respins
- Expanding Wild
- Wilds
- Autoplay
- Theme: Modern
- Volatility: High
- Release Date: 2018-08-24
- RTP (Return to Players): 96.23%
- Reels: 5
- Min Bet: 0.10£
- Max Bet: 200£ (in UK 5£)
- Provider: NetEnt
Kings Mark Eclipse Of Gods
Get underway with a new expedition to rediscover the fabled and powerful King’s Mask in the ancient kingdom of Egypt
Kings Mark Eclipse Of Gods Features:
- Sticky Symbols
- Expanding Wild
- Nudge Feature
- Free Spins
- Respins
- Scatter Symbols
- Wilds
- Autoplay
- Theme: Modern
- Volatility: High
- Release Date: 2024-07-18
- RTP (Return to Players): 96.3%
- Reels: 5
- Min Bet: 0.2£
- Max Bet: 100£ (in UK 5£)
- Provider: Play'n GO
- Paylines: 20
Rise of Olympus Extreme
Rise of Olympus Extreme unleashes the might of Zeus, Hades, and Poseidon in a celestial clash like no other. With divine powers, surging reels, and the fury of the gods at play, every spin brings you closer to legendary rewards.
Rise of Olympus Extreme Features:
- Free Spins
- Multipliers
- Wilds
- Theme: Modern
- Volatility: High
- Has Bonus Feature
- Release Date: 2025-09-04
- RTP (Return to Players): 96.2%
- Reels: 5
- Min Bet: 0.1£
- Max Bet: 100£ (in UK 5£)
- Provider: Play'n GO
- Paylines: cluster