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The Online Casino Sister Sites 2026: The Online Casino Review, Bonuses, Alternatives and More
With a site called The Online Casino you'll expect many slot games, a wide variety of live tables and some nice free spins. Well, at least I suppose you will because that's what I though. That's a casino and sportsbook operated by Progress Play that I've been considering reviewing recently and I just got to do so a week ago. After some testing of both their platform and their sister sites, let me show you what do they offer to UK customers in 2026.
- License: UK Gambling Commission
- Owner: ProgressPlay Limited
- Welcome bonus: 100% match bonus up to £50 plus 20 free spins on Book of Dead
- Popular features: plenty of slots, a good live dealer selection, bingo rooms, free bingo, multiplier bingo, pay by mobile deposits
- Sister sites: Kimo casino, Mr Superplay casino, Mr Mobi casino, Casimpo casino, Glimmer casino, Monster casino
Which are the best Online Casino sister sites on the ProgressPlay platform?
There are many online casino brands operated on the ProgressPlay Ltd.'s platform and now I'm going to walk you through the best among them in order to show you some top alternatives to The Online Casino.
Kimo casino
Kimo casino is an interesting gambling website where you'll be able to enjoy a handful of different casino bonuses, plenty of exciting games, albeit standard for the ProgressPlay platform and nothing that different in terms of interface and general usability. A mediocre casino at best but that's not something to suprise me with this company.
Mr Superplay casino
Mr Superplay casino is supposed to present you with super play opportunities, right? Well, so-so. Because, yes, they are better than nearly half of the gambling sites on the UK market. But they aren't providing as many good features as the other half of them. That's the story I keep on seeing with ProgressPlay sites, though. At least now their new up to £50 welcome bonus with 15 bonus spins is a tad better (thanks to the 10x wagering) than what they previously offered such as the up to £50 with 30 free spins but with 50x wagering attached, too.
Mr Mobi casino
Another of the sister sites to The Online Casino is Mr Mobi. That's also a Progress Play platform I don't have to say much about. Because they're relatively standard and with nothing that spectacular to enjoy.
When it comes to the welcome bonus, Mr Mobi casino might look promising, giving you access to a 200% match offer. Here stop the good news, though, and come the caveats. Max bonus amount is set at £20. Which basically means the welcome offer should be reworded as deposit £10 to get £20.
Casimpo casino
Casimpo is another sister site to The Online Casino that's running casino games, live tables, bingo rooms and sports betting on the Progress Play platform. It's got various rooms you can enjoy such as Fish & Chips and Rainbow Riches bingo, it offers many popular live blackjack, roulette, baccarat and game shows and it has many bonuses that credit you free spins. Such as their welcome package which gives you 50 bonus spins on first deposit, 25 fs on second one and 50 more on third one, all for the Book of Dead slot. As standard, the winnings made with the bonus must be played through 10x to get them withdrawn.
Glimmer casino
There might not be a lot of Glimmer at Glimmer casino but at least there are the standard Progress Play options. You'll be able to enjoy selected bingo rooms, some live tables, as well as many slots. Sports betting is also provided and so are plenty of bonuses. And despite them offering a welcome match bonus, I'm not a big fan of it because it's only 25% up to £50 which means to get the max bonus amount, you'll have to deposit £200.
Monster casino
Monster casino is another standard website ran by Progress Play. They've got the basic set up of the technology provider, as well as the standard selection of gambling opportunities.
The best part of what Monster casino has on the table for its customers is the five-part welcome bonus that features matched deposit bonuses and free spins on Book of Dead and Starburst. On initial top up players wil get 50 bonus spins on Book of Dead, whereas the next couple of deposits give you 25% match up to £200.
The fourth deposit bonus is worth 25% up to £600 and the fifth one gives you 50 free sipns on Starburst. All parts are available on £20 min deposit and with all of them you'll need to wager the bonus 10x (same applies for the free spin winnings). The bad news is, just like with other promotions at casinos operated by ProgressPlay Limited, the max conversion to real money which is set at only £50.
Exclusive offers for new players with The Online Casino alternatives
| Casino site | Welcome bonus for casino players | Sports welcome offer | Bingo bonus for new players |
| Mr Super Play | 150% match up to £50 plus 15 free spins on Gates of Olympus | bet £10 to get a £40 free bet | deposit £10 to get £20 for bingo games |
| Mr Mobi | 200% match up to £20 | bet £10 to get £40 in free bets | deposit £10 and get £20 for bingo games |
| Casimpo | 50 free spins on Book of Dead on first deposit; 25 free spins on Book of Dead on second deposit and 50 free spins on Book of Dead on third deposit | no welcome offer; cashback on deposits after the initial one provided only | deposit £10 and get £20 for bingo games |
| Glimmer casino | 25% match up to £50 and 20 free spins on Book of Dead | deposit £10 to get a £10 free bet | deposit £10 and get £20 for bingo games |
| Monster casino | 50 free spins on Book of Dead on first deposit | bet £10 to get a £30 free bet | deposit £10 to get £40 in bingo bonus |
The Online Casino review of welcome bonuses: Free spins, free bets and more
When it comes to bonuses provided, there are some good picks at The Online Casino. Mostly concerning the welcome offers but some ongoing promos are also to be found.
First deposit match bonus with free spins
The first deposit bonus at The Online Casino allows you to get 100% match towards your min £10 initial top up with max bonus reaching £50. Additional 20 free spins on Book of Dead are also provided. To withdraw any winnings from the received bonus amount or from free spins winnings, wagering requirements of 10x need to be completed within 30 days. Skrill and Neteller deposits excluded from claiming the welcome offer.
Sports welcome offer
On the other hand, if you fancy some free bets, you can get a £10 token upon your first deposit and qualifying wager of £10. The free bet can be used at min odds of 1.5. Free bet stake not returned with winnings which are to be rolled over 1x prior to withdrawal. Bonus and winnings expire within 7 days from receipt.
Bingo welcome bonus
UK bingo fans who're looking to play with The Online Casino can enjoy a £20 bonus for bingo rooms on their first deposit of £10. Rollover required is 2x the bonus amount received and max conversion to real funds is capped at £20.
Other promotions for existing customers
Different seasonal promotions are to be discovered with The Online Casino. Those feature varying options, from 30 free spins on Merlin's Grimoire to some bonus cash to be used on selected slots of the casino's collection. Of course, the standard for ProgressPlay mystery boxes can be found here, too, as well as the Midweek Wheel of Prizes where you can win anything from 5 to 500 free spins on deposit with promo code WED500.
Choose your rewards with the loyalty program
There is a rewards program offered at The Online Casino, also, just like with all the other sister sites that operate on the same gaming technology. It gives you access to additional promotions, such as free spins for selected slots, cashback and so on, which you'd be able to claim in return for points accumulated with wagering on slot games.
Top casino games to enjoy with The Online Casino
Working together with the top gaming developers in the industry, all of the Progressplay's sites provide their customers with many options to enjoy selected games.
Slot games
The main part of The Online Casino's game library consists of slot games. But, to be honest, I enjoyed mostly their new titles because I haven't gotten used to them. Those included top games like Le Digger, The Great Eggscape, Big Bass Throphy Catch and 3 Magical Genies. Lots of Vegas-themed slots, many other themed ones and lots of classics are available, also.
Some interesting jackpot games are offered, too, with my favorites here being the ones of the Age of the Gods series. The variety isn't as good as I hoped for it to be, though, although I'm not sure why I expected something more considering I've played with other Progress Play sites, too.
Bingo games
One of the best things you'll discover with The Online Casino is the collection of bingo rooms. They feature deveral different options with the inclusion of 90-ball, 80-ball, 75-ball bingo and other types of this classic game. Deal or No Deal, Fluffy Favorites, Rainbow Riches Bingo and The Daily Big One are just some of the options. Live bingo rooms, free games and even free multiplier games are all offered to make your journey a lot better.
Table games
When it comes to classic table games, the variety isn't that good. Yes, you'd be able to enjoy some selected titles but neither here nor with The Online Casino sister sites is there a good enough collection of RNG tables. Some blackjack and roulette with a handful of video poker games are all you'd be able to experience.
Live casino games
The live casino collection is a tad better. Powered by the best live gaming providers, Playtech, Evolution Gaming and Pragmatic Play, it features top-tier games like:
- Age of the Gods Mega Fire Blaze Roulette
- Red Baron
- Always 9 Baccarat
- Adventures Beyond Wonderland
- Ice Fishing
- Dragon Dragon
- Lightning Bac Bo
- Fun Fun 21 Blackjack
- Fireball Roulette
- All Bets Blackjack
- Buffalo Blitz Live
- Caribbean Stud Poker
- First Person Hi/Lo
Plenty of additional options are also included to ensure you've got a great gaming experience.
The Online Casino sportsbook: What markets, odds and betting features you'll get?
Just like most of the other sites on the Progress Play technology, The Online Casino also includes a sportsbook. It covers the most popular sports (think football, basketball and horse racing) as well as various niche disciplines like table tennis, darts, snooker, badminton and so on.
Actually, the selection is quite a comprehensive one because it includes over 50 sports with some of them being eSports such as Counter-Strike 2, Dota 2, League of Legends, Valorant and Call of Duty. Over 2000 pre-match events are provided at all times and in-play betting is also included with live steaming on some matches.
The odds are about average for the market, the betting features aren't that many but at least you've got quick bets and Bet Builders and the main thing I didn't like was the design that made it a bit hard to see the events and the odds.
All in all, though, placing sports wagers was somehow better for me than playing slots which is a bit ironic considering the site is titles The Online Casino.
Payment options to make use of with The Online Casino sister sites
All the brands that Progressplay Limited operates have the same payment methods provided for deposits and withdrawals and those include:
- debit cards Visa and Mastercard
- Skrill and Neteller
- Apple Pay
- Paypal
- paysafecard
- Payz
- Neosurf
- Pay by Mobile
- Pay by Bank
The minimum deposit here is set at £10 and almost the same is true for payouts because some methods require a larger limit.
KYC is required, of course, prior to initial withdrawal so you'll need to send a proof of ID and proof of address to get them approved before your payouts can be released. Payment verification might be requested on particular deposit options, too.
A couple of things I always point out as main disadvantages of the Progress Play websites are the fees on withdrawals (1% up to £3) and the slow processing times with some withdrawal requests reaching your payment account within as many as seven business days.
The Online Casino review conclusion
The Online Casino might look like a catchy name for a gambling site but you wouldn't catch me there again unless it's to review them once more. I've said it before and I'll say it again, the Progress Play sites aren't my thing. I dislike the similarity that's a bit too much for me. I dislike the basic game library, the not that neat design and the not so nice bonuses (mostly when it comes to the max conversion caps).
Additional drawbacks are the fees on withdrawals and the slow processing times. So, don't expect anything that good but at least that's not the worst experience you'll discover. Of course, you're free to try their slot games and all the other options yourself but remember to play responsibly and stop playing if the fun stops.
The Online Casino FAQs
Is the welcome bonus for new players any good?
The new players promotion at The Online Casino isn't very neat one but that's mostly due to the max conversion amount which is £50 for the bonus money and £20 for the free spin winnings.
How quick are withdrawals at The Online Casino?
The waiting times on withdrawals depend on the payment method you're using. The quickest options are e-wallets which take about a couple days only. The slowest payment methods are card and bank transactions that might take up to 5-7 business days.
Is it possible to play with The Online Casino on a mobile device?
Yes, players at The Online Casino can easily play their favorite slot games, bingo rooms and live tables on mobile with the help of the responsive website design accessible through your phone's browser.
What responsible gambling tools are provided at The Online Casino?
The Online Casino allows you to utilize the standard responsible gambling tools like limits on deposits, spendings and losses, reality checks, time outs as well as self-exclusion including through the GAMSTOP scheme.
