Onyx Slots Australia Sister Site

Onyx Slots, a sister site hosted by the Grace Media Limited platform, operates alongside several other sister sites.

Breakdown of Onyx Slots

Current Promotion

Onyx Slots

Bonus: AU Players Not Accepted

Promotions: no wager bonus

Free Spins: 50 Bonus Spins

Games Applicable: Big Bass Bonanza

Wager Requirement: None

: UKGC

Minimum Deposit: $10

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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 | Gambling Help Online®.

Siter Sites hosted by Grace Media Limited

Hotstreak Casino

AU Players Not Accepted

Is Licensed By: UKGC

terms and conditions

First deposit only. Min deposit and stake £20 on slots only. Promo code BASS20 required. Max 100 cash spins. Max one claim during promo period. Spins valid on Big Bass Bonanza. Total spin winnings capped at £200 per claim.Full T&Cs apply.

Vegas Wins Casino

AU Players Not Accepted

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 Match Deposit 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

Pros

Video Slots featured at Onyx Slots as of June 2025

Merlin Realm Of Charm Slot

Merlin Realm Of Charm Slot

Step into a world of magic in Merlin Realm of Charm, where you’ll have the chance to land magical winnings—if luck is on your side.

Merlin Realm Of Charm Slot Features:

Features
  • Multipliers
  • Free Spins
  • Instant Wins
  • Autoplay
  • Respins
Type
  • Volatility: High
  • Theme: Modern
Stats
  • Release Date: 2024-01-13
  • RTP (Return to Players): 96.2%
  • Reels: 5
  • Min Bet: 0.1
  • Max Bet: 100
  • Provider: Play'n GO

Twin Spin Megaways

Twin Spin Megaways

Twin Spin is one of Netents original slots, but the Megaways version is a collaboration between Netent & Red Tiger, bringing you a suped up sequel with the Megaways game mechanics and many more ways to win!

Twin Spin Megaways Features:

Features
  • Wilds
Type
  • Game type: Megaway Slots
  • Volatility: High
Stats
  • Release Date: 2013-02-13
  • RTP (Return to Players): 97%
  • Reels: 3
  • Min Bet: 0.25
  • Max Bet: 125
  • Provider: NetEnt
  • Paylines: 243

Willys Hot Chillies Slot

Willys Hot Chillies Slot

Join us in vibrant Mexico for a full-on fiesta—complete with piñatas, spicy food, and a chance to grab some extra free spins. This festive slot comes loaded with big win potential and exciting multipliers. Spin the piñata and see what rewards fall your way!

Willys Hot Chillies Slot Features:

Features
  • Wilds
  • Free Spins
  • Bonus Wheels
Type
  • Theme: Classic
  • Theme: Modern
  • Volatility: Medium
  • Game Type: Jackpot Games
Stats
  • Release Date: 2020-07-30
  • RTP (Return to Players): 96%
  • Reels:
  • Min Bet: 0.20
  • Max Bet: 40
  • Provider: NetEnt
  • Paylines: 20

Phantom of The Opera Slot

Phantom of The Opera Slot

Take a seat and enjoy the classic opera theme of The Phantom in this thrilling online slot, featuring extra spins and a chance to land big wins.

Phantom of The Opera Slot Features:

Features
  • Free Spins
  • Expanding Wild
  • Expanding Symbols
  • Wilds
  • Multipliers
  • Scatter Symbols
  • Autoplay
Type
  • Theme: Modern
  • Volatility: Medium
Stats
  • Release Date: 2016-03-10
  • RTP (Return to Players): 96.30%
  • Reels: 5
  • Min Bet: 0.30
  • Max Bet: 30
  • Provider: Microgaming
  • Paylines: 243

The Book of Dead By Play 'N Go

The Book of Dead By Play 'N Go

Hugely popular slot game from Play 'N Go, follow Rich on his treasure seeking adventures in ancient Egypt.

The Book of Dead By Play 'N Go Features:

Features
  • Free Spins
  • Respins
  • Autoplay
  • Scatter Symbols
Type
  • Theme: Classic
  • Game Type: Cascade Slots
  • Game Type: Avalanche
  • Volatility: High
Stats
  • Release Date: 2014-02-18
  • RTP (Return to Players): 96.21%
  • Reels: 3
  • Min Bet: 0.2
  • Max Bet: 50
  • Provider: Play'n GO
  • Paylines: 20