Onyx Slots Sister Site

Onyx Slots, a sister 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. 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's & C's 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

Current Promotion

Pros

Video Slots featured at Onyx Slots as of September 2025

Rise Of Olympus

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:

Features
  • Wilds
  • Free Spins
  • Mystery Symbols
  • Autoplay
  • Expanding Wild
  • Expanding Rows
Type
  • Volatility: High
  • Theme: Modern
Stats
  • 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

Neon Staxx

Neon Staxx

Let’s travel back to the ’80s — a world full of neon lights, purple and pink gradients — in this classic yet relatively new online slot, which offers big payouts and exciting free spins.

Neon Staxx Features:

Features
  • Free Spins
  • Scatter Symbols
  • Wilds
Type
  • Volatility: Low
  • Volatility: Medium
  • Videoslot
Stats
  • Release Date: 2015-06-24
  • RTP (Return to Players): 96.9%
  • Reels: 5
  • Min Bet: 0.2£
  • Max Bet: 100£ (in UK 5£)
  • Provider: NetEnt
  • Paylines: 40

Fin and The Dragon Tales

Fin and The Dragon Tales

Spin with the dragons from just £0.20 a go. This isn’t your usual Fin slot — it’s fresh, modern, and perfect for new players chasing a bit of excitement.

Fin and The Dragon Tales Features:

Features
  • Buy Bonus Game
  • Autoplay
  • Wilds
  • Multipliers
  • Free Spins
Type
  • Theme: Modern
  • Volatility: Medium
Stats
  • Release Date: 2025-03-25
  • RTP (Return to Players): 96.04%
  • Reels: 7
  • Min Bet: 0.2£
  • Max Bet: 120£ (in UK 5£)
  • Provider: NetEnt
  • Paylines: fixed

Lab of Madness

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:

Features
  • Wilds
  • Free Spins
  • Walking Wilds
Type
  • Theme: Modern
  • Volatility: High
Stats
  • 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

10 001 Nights

10 001 Nights

A fantastic Middle Eastern themed slot game; Collect lamps to fill meters which can in turn deliver high value symbol spins, added wilds, multipliers, free spins and mega wilds.

10 001 Nights Features:

Features
  • Free Spins
  • Respins
  • Wilds
  • Mystery Symbols
Type
  • Volatility: Low
  • Theme: Modern
Stats
  • Release Date: 2016-02-18
  • RTP (Return to Players): 94.73%
  • Reels: 4
  • Min Bet: 0.1£
  • Max Bet: 50£ (in UK 5£)
  • Provider: Red Tiger
  • Paylines: 20

Player Reviews

Leave your thoughts and opinions below

Sign in with Google Sign in with Google

0/2000

Submit