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

Wild Bazaar

Wild Bazaar

What hidden treasures await in this vibrant Middle Eastern slot? Spin the reels and unlock the mystery of the blue or pink chest which one will reveal the biggest payouts?

Wild Bazaar Features:

Features
  • Respins
  • Expanding Wild
  • Sticky Symbols
  • Wilds
  • Multipliers
  • Autoplay
Type
  • Theme: Modern
  • Volatility: Low
Stats
  • Release Date: 2018-10-24
  • RTP (Return to Players): 96.15%
  • Reels: 5
  • Min Bet: 0.20£
  • Max Bet: 400£ (in UK 5£)
  • Provider: NetEnt
  • Paylines: 26

Mega Don Feeding Frenzy

Mega Don Feeding Frenzy

He is back and hungry for fish; this colorful new slot from Play'n GO does have a real bite.

Mega Don Feeding Frenzy Features:

Features
  • Mystery Symbols
  • Expanding Symbols
  • Scatter Symbols
  • Free Spins
  • Autoplay
Type
  • Theme: Modern
  • Volatility: High
Stats
  • Release Date: 2023-01-07
  • RTP (Return to Players): 95%
  • Reels: 5
  • Min Bet: 0.1£
  • Max Bet: 100£ (in UK 5£)
  • Provider: Play'n GO
  • Paylines: 1024

Twin Spin Deluxe

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

Twin Spin

Twin Spin

A brilliant timeless classic slot, packed with big win potential and rewarding payouts – whether you're a casual player or a true VIP chasing jackpot-sized wins.

Twin Spin Features:

Features
  • Wilds
  • Autoplay
Type
  • Theme: Classic
  • Game type: Megaway Slots
  • Volatility: Medium
Stats
  • Release Date: 2013-05-20
  • RTP (Return to Players): 96.56%
  • Reels: 5
  • Min Bet: 0.25£
  • Max Bet: 125£ (in UK 5£)
  • Provider: NetEnt
  • Paylines: 243

Piggy Riches

Piggy Riches

Piggy Riches™ is a reimagining of a classic NetEnt slot, featuring money-savvy piggies chasing massive wins. Packed with a modern twist and upgraded features, it brings fresh excitement to a beloved favorite.

Piggy Riches Features:

Features
  • Buy Bonus Game
  • Walking Wilds
  • Wilds
  • Respins
  • Free Spins
Type
  • Theme: Modern
  • Volatility: High
  • Has Bonus Feature
Stats
  • Release Date: 2025-08-26
  • RTP (Return to Players): 96.06%
  • Reels: 5
  • Min Bet: 02£
  • Max Bet: 40£ (in UK 5£)
  • Provider: NetEnt
  • Paylines: 20

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