Onyx Slots 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: Wager Free Spins Welcome Package

Promotions: no wager bonus

Free Spins: 50 Bonus Spins

Games Applicable: Big Bass Bonanza

Wager Requirement: None

licensed by: UKGC

Minimum Deposit: £10

Visit

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 | BeGambleAware® #AD.

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 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

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 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

Mega Moolah

Mega Moolah

Microgamings Iconic Mega “the Millionaire Maker” Moolah takes you on a Progressive Jackpot safari journey to the plains of Africa.Mega Moolah consists of a mini, minor, major and a Mega Jackpot often reaching over £5 Million

Mega Moolah Features:

Features
  • Wilds
  • Free Spins
  • Autoplay
  • Multipliers
Type
  • Game Type: Progressive Jackpots
  • Game Type: Jackpot Games
  • Volatility: High
Stats
  • Release Date: 2006-01-10
  • RTP (Return to Players): 96.66%
  • Reels: 5
  • Min Bet: 0.25
  • Max Bet: 50
  • Provider: Microgaming
  • Paylines: 25

Dark King: Forbidden Riches

Dark King: Forbidden Riches

Step into a dark fantasy world in this epic slot, where you take on the role of a brave knight, protector of the realm. Face mythical dangers and spin your way to rewards like free spins and the potential for big wins. Do you have what it takes to rise to the challenge?

Dark King: Forbidden Riches Features:

Features
  • Free Spins
  • Respins
  • Multipliers
  • Wilds
Type
  • Theme: Modern
  • Volatility: Medium
  • Volatility: High
Stats
  • Release Date: 2020-10-01
  • RTP (Return to Players): 96.06%
  • Reels: 5
  • Min Bet: 0.20
  • Max Bet: 400
  • Provider: NetEnt
  • Paylines: 20

Bloodsuckers 2 Slot

Bloodsuckers 2 Slot

If you're into vampires and gothic themes, this unique slot is for you. With the potential for big wins, hit spin and uncover hidden treasures lurking in the reels.

Bloodsuckers 2 Slot Features:

Features
  • Free Spins
  • Wilds
  • Scatter Symbols
  • Autoplay
Type
  • Volatility: Medium
  • Theme: Modern
Stats
  • Release Date: 2017-06-01
  • RTP (Return to Players): 96.94%
  • Reels: 5
  • Min Bet: 0.25
  • Max Bet: 100
  • Provider: NetEnt
  • Paylines: 25

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
  • Provider: Play'n GO
  • Paylines: 1024

Seregeti Kings Slot

Seregeti Kings Slot

This online slot takes you on a safari through the wilds of Africa, where you’ll come face-to-face with the kings of the savannah, from roaring lions to sleek panthers. With a backdrop set deep in the heart of the savannah, the game delivers a classic slot experience packed with the potential for big wins, especially when luck is on your side.

Seregeti Kings Slot Features:

Features
  • Free Spins
  • Respins
  • Wilds
  • Multipliers
Type
  • Theme: Modern
  • Volatility: Medium
  • Volatility: High
Stats
  • Release Date: 2020-01-01
  • RTP (Return to Players): 96.7%
  • Reels: 5
  • Min Bet: 0.10
  • Max Bet: 100
  • Provider: NetEnt
  • Paylines: 26

Player Reviews

Leave your thoughts and opinions below

Sign in with Google Sign in with Google

0/2000

Submit