Top 10 Dunder Casino Sister Sites

Genesis Casino - Join Now For £100 Bonus

This is a list of the best Dunder Sister Sites – many of these casinos are owned and operated by the Gaming Innovation Group, featuring a huge array of quality slots and casino games, and offering top welcome packages, with free spins and bonuses.

Already a member of Dunder and want somewhere new to try? Our list will help you find what you’re looking for. Dive straight in, or read our reviews if you want to know more about each slot site and casino, including details of their exciting reward programs, cashier options and customer support service. You’ll find more information on each site on this page too.

NOTE – new sites are launching all the time – keep checking back for the latest releases!

List of The Best Sites Like Dunder Casino – Updated For August 2019

Close Down Arrow
All Sites are UK Licensed UK
Casino Joy

100% Up To £200 Bonus

+ 200 Spins on Starburst Slot

18+, New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. Minimum £5 wager to activate 200 Spins. 20 Spins on Starburst games will be credited per day for 10 days after qualifying deposit/wager is met. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. T&C's Apply.

Casino Joy is an exciting new slot site from Genesis Global Ltd, a big name in online casinos. Here you can enjoy over 1,300 games from top suppliers including NetEnt, Microgaming, Thunderkick, Big Time Gaming and more. Deposit and play with a range of payment options, including Neteller, Skrill, Trustly and BOKU. Enjoy 200 spins on Starbust with your first deposit. Here’s 5 more great reasons to sign up:

  • Cool summery vibe to this casino
  • Full Big Time Gaming suite of Megaways™ slots
  • Excellent VIP program
  • Live chat support
  • UK Gambling Commission and Malta Gaming Authority licensing
Temple Nile

200% Up To £500 Welcome Bonus

Plus 30 Bonus Spins

18+. New players only. 1 bonus offer per player. Min. deposit £20. Max bonus bet £5. Extra spins on selected games only- must be used within 72 hours. Bonus funds expire in 30 days, unused bonus shall be removed. Bonus funds are 200% match up to £500 + 30 extra spins on 1st deposit, 25% match up to £800 + 25 extra spins on 2nd deposit, and 50% match up to £200 + 50 extra spins on 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus, cash & extra spins. Terms

Temple Nile is one of the latest slot sites from White Hat Gaming, an operator with an excellent reputation for delivering a first class casino experience for UK gamblers. This casino has over 1,000 games to play, from classics like Dead or Alive, Thunderstruck II and Starburst to new titles from Big Time Gaming, Quickspin, Play n Go and many more. Enjoy a bumper bonus package on sign up and these perks too:

  • Classy mobile version of site with easy navigation
  • Under 24 hour withdrawals
  • Live chat support
  • Big live casino
  • Neteller and Skrill payments

100% Up To £100 Welcome Bonus

+ 100 Extra Spin on Book of Dead

18+, New Customers Only, 100% up to £100, 40x wagering, max win £1, 000, claim period 14 days, New customers only. Min £10 dep. Neteller/Skrill excl. Wagering 40x on bonus amount within 7 days. Bonus max win £1,000. Max 20 spins per day. Spins max win £100. Bonus max bet £5. Game weighting,  restrictions,  Ts and Cs Apply,

Casino Calzone

100% Match Bonus Up To £100

+ Up To 100 Extra Spins

18+, New Customers Only, Min Deposit: £10, Ts and Cs Apply, WR 30x Bonus + Deposit, WR 35x Extra Spins Winnings, Neteller, Skrill and Pre-Paid excluded, Bonus Max Bet: £5, Available real money funds can be withdrawan at any time, Max cashout from bonus is £5,000, Game Weightings apply,

Fans of Rizk and High Roller Casinos will be familiar with the rewards-based set up of this pizza-themed slot site which opened it’s doors in 2017.  As well as regular promotions every day when you log in and play Calzone have their own ‘Wheel of Rizk’-style rewards program with level-ups and free spins offers. Just spin the pizza board to find out what you get each time you reach your next level.

Here’s a few more reasons to feast on this casino’s dough balls:

  • Full Big Time Gaming slots catalogue
  • Hundreds more games from MG, NetEnt, Quickspin, Play n Go, Thunderkick and more
  • Super-fast cashouts
  • Neteller and Skrill payment options
  • 24/7 Live Chat Support
32Red Online Casino

£10 Free - No Deposit Needed

+ Up To £160 1st Deposit Bonus

18+, New Customers Only, Ts and Cs Apply, WR 40x Bonus, winnings withdrawal at any time,

This award-winning casino, owned by the Nasdaq group, has a superb reputation and offers the full selection of Microgaming slots. 32 Red has been in service since 2002 and offers a slick and well-oiled casino experience. Their VIP program is second to none and they bring an excellent cashier with swift withdrawals and Paypal included. Highly recommended!

  • Full Microgaming suite of games
  • Paypal option
  • Award-winning customer support
  • Excellent VIP service
  • Slick site on desktop and mobile
Rolla Casino

10% Weekly Cashback Up To £1,000

Credited In Cash - No Wagering Requirements

New Customers Only, Terms and Conditions Apply, 18+ 10% back on net losses, real money bets minus real money wins. Valid 10:00GMT Fri to 10:00GMT Fri. Min £1, Max £1,000. money back credited, every Friday at 10:01 GMT.

Rolla Casino is an amazing new slot site from MT Secure Trade, featuring a massive range of top quality slot games from all the biggest suppliers. They also have one of the best personalisation platforms in the business – log into your hub to find your favourite games, new promotions and spins, and your latest tourney rankings! Plus get 10% cash back EVERY week.

  • Over 600 games to play on desktop and mobile
  • Full Big Time Gaming suite of slots
  • Skrill, Neteller, Trustly and Paysafecard
  • Live Chat 24/7
  • UK Gambling Commission and Malta Gaming Authority licensing
Metal Casino

Regular Extra Spins and Bonus Offers

18+, New Customers Only, Ts and Cs Apply, BeGambleAware

In 2017 Ozzie Osbourne-fronted Metal Casino burst onto the scene looking like no slot site we’ve ever seen before. With a host of ambassadors from Europe’s metal scene and a racy channel, this is a new way to do online gambling. Metal also turn the Wheel of Rizk rewards program by Gaming Innovation Group into a heavy metal tour with lots of free spins and bonuses at destinations across the world.

  • Awesome welcome package on 1st 2 deposits
  • Big Time Gaming slot catalogue
  • Trade Met Coins for spins, bonuses and metal merchandise
  • Superb, original brand
  • 24/7 Live Chat support
Ikibu Online Casino

100% Match Bonus Up To £100

+ 50 Spins On Selected Slots

18+, New Customers Only, Min Deposit: £10, Ts and Cs Apply, WR 30x Bonus + Deposit, WR 35x Free Spins Winnings

Journey through mystical lands and villages and pick up points to exchange for spins and bonuses at the fantastical Ikibu Casino. The more you play here, the better the rewards get, with more valuable free spins and better games on offer. This slot site has an immersive quality similar to Casumo and Cashmio.

  • Over 500 slots from all the best suppliers
  • 50 spins on Starburst to kick things off
  • Skrill, Neteller and Trustly all accepted
  • 24/7 Live Chat
  • Slick site looks great on mobile with all games
Cashmio Casino

150 Happy Spins on Starburst Slot

Massive Game Catalogue

18+, New Customers Only, Min Deposit: £20, Ts and Cs Apply, Free Spins WR 45x Free Spins Winnings,

Fans of immersive casinos like Casumo will love this friendly slot site fronted by minions-like cartoon creatures. Cashmio are famous for their rewards program that dishes out plenty of free spins and bonuses in exchange for your loyalty! Every day sees a new mission to complete, plus lots of reel races with high value prizes.

Join today for lots of free spins and bonus offers, plus all this:

  • 500+ slot games including Netent, MG, Thunderkick, Quickspin, Play n Go and Big Time Gaming
  • Cool game menu filter to help you find your favourites
  • Daily Missions earn you extra spins and bonuses
  • Slot races with cash prizes EVERY day
  • 24/7 Live Chat Support
High Roller


+ 50 Extra Spins Across Five Slots

New customers only. 1st dep, min. £20. £1 on Dream Catcher on 1st day + 10 Spins on selected games p/day on following 5 days. Spins wagering 35x in 30 days. Game weighting & Ts and Cs Apply,

In 2018 Gaming Innovation Group brought us this brand new immersive casino set in the imagined town of Metrocity where you must compete with other players as you journey through the streets to your next destination, picking off your opponents and stealing their loyalty coins as you go. But don’t sleep too long or they might pick you off instead!

  • Over 750 games to choose from
  • Pimp up an avatar and meet other players too!
  • 24/7 Live Support
  • Welcome Bonus Extra Spins available on FIVE games
  • Top mobile site
  • Cashouts in under 24 hours
Guts Casino

100% Up To £100 Bonus

+ Extra Spins on Vikings by NetEnt

18+, New Customers Only, Min Deposit: £10, Ts and Cs Apply, WR 35x Bonus

Guts is a long-standing UK slot site that launched in 2013 but more recently had a makeover in 2018. It is one of a group of casinos owned by Gaming Innovation Group (who also own Rizk and High Roller). They have won award for their excellent customer services and super-fast payouts. Of course they also offer a massive slots catalogue and a fantastic rewards program.

  • Big Time Gaming slots catalogue
  • Free Spins on Book of Dead when you join
  • Paypal, Neteller and Skrill accepted
  • Withdrawals processed in under 2 hours
  • Superb new site on desktop and mobile
Rizk Casino

100% Match Bonus Up to £100

+ 50 Extra Spins - No Wagering Requirements

18+, New customer only. Min £10 dep. Neteller / Skrill excl. Max bonus £100. Wagering 40x on bonus amount within 30 days. Bonus max bet £5. Spins paid 10 per day. Game weighting and T and C apply,

Rizk is a ground-breaking, innovative and super-slick online casino fronted by super hero Captain Risk. Their generous welcome offer comes with extra spins with no wagering requirement and no win limits.

  • Big Time Gaming, Thunderkick, Quickspin, Play n Go, Netent, Microgaming, NextGen, Yggdrasil and more!
  • Check your power bar status and level-up to collect massive rewards including wager free spins and cash bonuses
  • Rizk Slot Races every 30 minutes with cash prizes and extra spins
  • Withdrawals actioned in 1 to 3 hours
  • Manual optional withdrawal lock system – NO REVERSALS!

Many discerning slots fans in the UK will be familiar with Dunder Casino, one of Europe’s most trusted and well-known gambling brands from recent years. This Swedish slot site is built on the Gaming Innovation Group platform which is renowned for offering players a superb choice of games across mobile, desktop and tablet, with a wide selection of payment options, reliable customer support and a good choice of bonuses and free spins.

Here at The Slot Buzz we know that gamblers like to mix things up and play at different casinos – to change the scenery, or maybe to end a run of bad luck! That’s why we have put together our lists of the best sister sites to help you find new casinos to play at that share the characteristics of your favourite ones whilst offering something new.

Our list of the best Dunder Sister Sites does just that.

The majority of casinos on this page are owned and operated by Gaming Innovation Group (GIG) or MT Secure Trade, a division of GIG. That means that not only will you be impressed with the range of games on offer, but you will also be familiar with the kind of promotions available at sites like Rizk, Metal Casino and Casino Calzone where there are plenty of rewards and level-ups for those who continue to play regularly.

Each of these sites is also licensed by the UK Gambling Commission and the Malta Gaming Authority.

We have also recently added a few new casinos to the list that don’t come under the GIG umbrella. Casinos like Temple Nile, run by White Hat Gaming, and Casino Joy, from Genesis Global, are new, vibrant place to play slots and share all the characteristics of the best GIG sites. They have huge game catalogues – over 1,000 titles on each – as well as offering really generous sign up bonus packages, including plenty of free spins. And they also come with a very good reputation amongst UK gamblers.

Like all the casinos featured on The Slot Buzz, the casinos listed on this page have been comprehensively reviewed by our team so that you can learn all about what’s on offer before signing up. You will also be able to note the significant terms and conditions of each site’s welcome package so that you know what you are signing up for – this includes any restrictions on what you can do with winnings from free spins. So, if you’re not sure which site is for you, make sure you click through and read each article before you decide where to play.

Finally, we suggest browsing similar lists of Casumo Sister Sites, Play OJO Sister Sites and Rizk Sister sites if you’re looking for more options.

And remember, have fun and gamble safely!


Win a Mini Cooper With Play OJO
5th August 2019
This August and September players at the Skill on Net Casino, PlayOJO, have FOUR chances to
Ladbrokes Coral Fined £5.9 Million Over Problem Gamblers
31st July 2019
The UK Gambling Commission has imposed a £5.9 million fine on Ladbrokes Coral, owned by GVC,
Gambling Commission Announce Consultation on Use of Credit Cards for Gambling
30th July 2019
  The UK Gambling Commission has announced that it will be holding a twelve week consultation
Recommended slot sites 18+, New Customers Only, Ts and Cs Apply
£150 Bonus and 150 Spins
100% Up To £200
200% Up To £500
100% Up To £100 Bonus
100% Up To £100
50 Wager Free Spins
25 Free Spins
100% Match Bonus
Up to £100 Match Bonus
Up To £600 Bonus