Casino Kings Sister Sites: The ProgressPlay Network Explained
Casino Kings sister sites include JeffBet, Spinzwin, Jazzy Spins, Mogobet, Monster Casino and Betarno, plus a long white-label list such as Betrino, Luck City, PlaceBet and Fruity King. They all run on the same ProgressPlay platform under one UK Gambling Commission licence (account 39335), so they share the cashier, the verification process and the game studios. What changes from brand to brand is the theme and the headline welcome offer, and a couple of the sisters bolt on a full sportsbook where Casino Kings keeps the betting side lighter.
Casino Kings Sister Sites in Full
Reviewed by Mike WilsonPublished: Feb 2020
A quick note on what “sister site” means here. ProgressPlay runs Casino Kings as a white-label brand, so the operator doesn’t really push an “official family” of its own. On this page a sister site means any casino sharing the same operator and UK licence, which is how most people search for it. That’s the common-sense version, and it’s also the one that actually protects you, because the shared licence is what carries the same rules, the same checks and the same GamStop cover across all of them.
How the ProgressPlay Network Works
Casino Kings doesn’t really stand alone. It’s one brand on a platform run by ProgressPlay Limited, a white-label supplier that builds and runs casinos for lots of different front-end names. ProgressPlay is registered in Malta and reported to be headquartered in Limassol, Cyprus, and it holds the UK Gambling Commission licence (account 39335) that every one of these UK brands sits under, plus a Malta Gaming Authority licence for other markets. So when people talk about “Casino Kings sister sites”, what they really mean is the other casinos sharing that same licence and platform.
In practice that means the sisters share a lot: the same game studios, the same cashier and payment methods, the same KYC checks when you withdraw, and the same GamStop self-exclusion cover. If you want to check whether two brands are related yourself, it’s easy enough. Scroll to the footer and look for “ProgressPlay Limited” and the licence number 39335, or look the operator up on the Gambling Commission register. If the operator and licence match, they’re sisters, whatever the logo on the front says.
Best Sister Sites at a Glance
- Best overall: JeffBet, the most rounded brand on the platform with a proper sportsbook.
- Best for slots: Spinzwin, a big slot-led lobby with fast cashier turnaround.
- Best for a calmer feel: Jazzy Spins, the moody, low-clutter one.
- Best stripped-back option: Mogobet, no frills and straight to the games.
- Best known name: Monster Casino, the long-running brand most players recognise.
- Best for sports and casino in one: Betarno, a newer combined site on the same licence.
The Sister Sites Compared
| Sister site | Status | UKGC licence | Best for | Welcome offer (always check) | Compared to Casino Kings |
|---|---|---|---|---|---|
| JeffBet | Same operator | Yes (39335) | Casino plus sports | Match bonus and spins, x10 wagering | Stronger sportsbook, similar slots |
| Spinzwin | Same operator | Yes (39335) | Slots | Match plus bonus spins, x10 wagering | More slot-focused, quicker cashier |
| Jazzy Spins | Same operator | Yes (39335) | Relaxed slot play | Match plus spins, x10 wagering | Quieter design, fewer pop-ups |
| Mogobet | Same operator | Yes (39335) | No-fuss play | Match plus spins, x10 wagering | Simpler layout, same game library |
| Monster Casino | Same operator | Yes (39335) | Familiar all-rounder | Match plus spins, x10 wagering | Better known, broadly the same engine |
| Betarno | Same operator | Yes (39335) | Sports and casino | Combined welcome, x10 wagering | Newer, betting-led front end |
Bonus terms change often. Under current UK rules the wagering requirement is capped at x10, but always read the live terms on the casino before you deposit.
JeffBet
Operator: ProgressPlay, same UKGC licence (39335). Launched 2022, with roughly 2,000 games from the shared studio list (NetEnt, Pragmatic, Blueprint, Evolution for live tables). Welcome offer: a match plus bonus spins at the UK x10 wagering cap. Payments: debit cards, PayPal, Pay by Mobile and the usual e-wallets. The standout is the sportsbook, which is deeper here than on most of the sisters, with in-play markets and decent football coverage. Versus Casino Kings: same casino engine, but JeffBet is the one to pick if you actually want to bet as well as spin.
Spinzwin
Run by ProgressPlay on the same licence, Spinzwin is the slot-led member of the family and the one players tend to name for quick withdrawals. The lobby leans heavily on slots from the same providers you’ll see at Casino Kings, with a smaller live-casino corner and a sportsbook tacked on. Welcome offer is a match and bonus spins at x10 wagering, and the cashier covers cards, PayPal and e-wallets. Versus Casino Kings: less sportsbook, more slots, and in my experience the payouts land a touch faster.
Jazzy Spins
Jazzy Spins is another ProgressPlay brand on licence 39335, and it’s the calmer one. Same game library and same cashier as the rest, but the design is darker and less busy, with fewer flashing promos shoved in your face. Slots dominate, there’s a tidy live-dealer section, and the welcome deal is the familiar match plus spins at x10 wagering. Versus Casino Kings: near-identical under the bonnet, so the choice really comes down to whether you prefer the quieter look.
Mogobet
Mogobet strips things back. It’s ProgressPlay again, same UKGC licence, same roughly 2,000-game catalogue, but the front end is about as plain as they come: open the site, find a game, play. Cards and e-wallets are all supported, withdrawals run on the same three to seven day rhythm as the others, and the welcome bonus sits at the x10 cap. Versus Casino Kings: identical games, less clutter, and no sportsbook to speak of.
Monster Casino
Monster Casino is the brand most people on this platform have actually heard of. It’s been trading for years, runs on the same ProgressPlay licence, and carries the same slots, live tables and a light sportsbook. Welcome offer is a match plus spins at x10 wagering; banking is the usual card and e-wallet spread. It’s a solid all-rounder rather than a specialist. Versus Casino Kings: broadly the same casino, just with a bit more name recognition behind it.
Betarno
Betarno is one of the newer combined casino-and-sports brands on the network. Same operator, same licence 39335, same studios feeding the lobby, but the front door leans on betting as much as slots. Welcome offer is a combined casino and sportsbook deal at x10 wagering, with cards, PayPal and e-wallets at the cashier. Versus Casino Kings: a fresher, sports-forward take on the same underlying platform.
The Complete ProgressPlay Sister Sites List
The brands above are the ones worth a proper look, but the wider network is far bigger. ProgressPlay has reported running well over a hundred UK-facing sites, so any list is a snapshot rather than gospel. Roughly grouped:
Owned and operated brands: the handful ProgressPlay runs directly, including sportsbook-leaning names like PlaceBet and PushBet, alongside Aced Bet and BetSteve.
White-label casinos: third-party-branded sites sitting on the same licence and platform. This is the big group, with names such as Betrino, Luck City, Fruity King, Funky Jackpot, Dazzle Casino, 21LuckyBet, Vegas Mobile and Spinzwin among many others.
Sports-forward sisters: JeffBet and Betarno, which push the betting side harder than the casino-first brands.
Older affiliate lists still name brands that have since closed or rebranded, so treat any roundup with a pinch of salt. The reliable check is the Gambling Commission register: look up ProgressPlay Limited under account 39335 and you’ll see the domains currently tied to the licence.
What’s the Same and What’s Different
| Feature | Casino Kings | Sister sites |
|---|---|---|
| Operator | ProgressPlay Limited | ProgressPlay Limited (all of them) |
| UKGC licence | Account 39335 | Account 39335 (shared) |
| Welcome bonus type | Match plus free spins | Match plus spins; some add a sports offer |
| Wagering | x10 (UK cap) | x10 (UK cap) |
| Loyalty | Points and tiers | Similar points scheme on most brands |
| Game library | ~2,200 titles | Same shared catalogue |
| Sportsbook | Light | Fuller on JeffBet and Betarno |
| GamStop | Yes, covered | Yes, covered (same licence) |
| Design | Standard ProgressPlay skin | Same skin, different themes |
Are These Official Casino Kings Sister Sites?
It helps to split the brands people lump together into three groups. First, there’s no real “official Casino Kings family”, because Casino Kings is itself a white-label brand rather than a parent. Second, there’s the same-operator network, which is what this page covers: every casino sharing ProgressPlay’s licence 39335, like JeffBet, Spinzwin and Monster Casino. Third, there are unrelated casinos that simply look similar or get suggested as alternatives but run on a different operator and licence entirely. Only the middle group are true sisters, and they’re the only ones that share Casino Kings’ rules, checks and GamStop cover.
Betmaze
Another brand on this licence now has its own review: Betmaze. It has been live since the first week of January 2025, so it is older than the new-casino lists suggest, and it splits its front page between live football odds and a table-heavy casino lobby. Casino Kings and Betmaze share the same licensee, ProgressPlay Limited, on UKGC account 39335. Betmaze is pictured below.
The Review
Casino Kings has been plugging away since 2014, and it’s the sort of site that doesn’t shout much but keeps its regulars happy. You get a big casino with a light betting section bolted on, all under one login. Here’s how it actually holds up across the bits that matter: the welcome offer, the games, the loyalty side, getting money in and out, support and safer gambling, and the mobile experience.
Welcome Offer and Promotions
The headline deal is a 150% match up to £150 plus 75 bonus spins on your first deposit. The important number is the wagering, and under current UK rules that’s capped at x10, which is a long way kinder than the heavy playthrough this brand used to attach. Skrill and Neteller deposits are still excluded from the offer, which is worth knowing before you fund the account. After the welcome, there’s a steady drip of reload spins, midweek cashback and a spin-the-wheel feature. What’s missing is a proper high-roller VIP club, so big spenders may feel a bit overlooked.
Games and Providers
The lobby runs to roughly 2,200 titles, the bulk of them slots, with names like NetEnt, Pragmatic Play, Blueprint, ELK Studios and Microgaming doing the heavy lifting. Live tables come from Evolution, so blackjack and roulette are the genuine streamed article rather than RNG fakes. There’s the usual spread of jackpots, scratchcards and a bit of bingo too. It’s a deep catalogue, though nothing on it is exclusive to Casino Kings, so you’ll find the same games across the sisters.
Loyalty and Rewards
There’s a points-and-tiers loyalty setup: you play, you climb levels, and you swap points for spins, bonus funds or the odd bit of cashback. It ticks along nicely if you’re a regular, but it’s fairly standard stuff, and as I said, there’s no dedicated VIP track for the higher stakes crowd.
Payments and Withdrawals
Deposits are easy: debit cards, PayPal, Paysafecard, Skrill, Neteller and Neosurf, all instant. Withdrawals are the weaker point. Expect three to seven business days depending on method and checks, plus a 1% withdrawal fee capped at £3. Fine on smaller cashouts, more of an irritation if you’re withdrawing often. And yes, the first withdrawal triggers ID verification, which is normal but does add a day or two the first time round.
Support and Responsible Gambling
Support runs through live chat and email. Chat is quick when it’s staffed, but it isn’t truly round the clock, so awkward-hours queries can sit waiting. On safer gambling the basics are all present: deposit limits, time-outs, reality checks and self-exclusion, and because this is a UKGC brand it’s covered by GamStop. I’d be doing you a disservice not to flag the operator’s record, though. In August 2025 the Gambling Commission fined ProgressPlay £1 million for anti-money laundering and player-protection failings, and it wasn’t the first time, after a smaller penalty back in 2022. The licence still stands and an independent audit was ordered, but it’s a fair reason to keep an eye on your own play and use the tools if you need them. If gambling stops being fun, GamCare and BeGambleAware are there to help.
Mobile Experience
There’s now an iOS app, which landed in 2025 and gives iPhone users proper native access. Android players are still on the mobile browser for the time being, with an app said to be on the way. The browser version is fine either way: games load straight off the page, the filters help when you’re scrolling hundreds of slots on a small screen, and it behaves much like the desktop site.
How It Compares to Its Sister Sites
Side by side with the rest of the ProgressPlay stable, Casino Kings is a competent middle-of-the-road choice. Spinzwin tends to pay out a little quicker, JeffBet and Betarno do sports better, and Jazzy Spins is the one to pick if you want a calmer screen. Casino Kings doesn’t lead in any single area, but it’s a reliable all-rounder if you like the look of it.
Key Facts
| Operator: | ProgressPlay Limited |
| Parent company / group: | ProgressPlay Limited (Malta-registered, reported HQ in Limassol, Cyprus) |
| Platform / network: | ProgressPlay white-label platform |
| Licences: | UKGC (account 39335); Malta Gaming Authority (MGA/B2C/231/2012) |
| Established: | 2014 |
| GamStop: | Yes, covered (UKGC licence) |
| Sister sites: | Many on the same licence, including JeffBet, Spinzwin, Jazzy Spins, Mogobet, Monster Casino and Betarno |
| Game providers: | NetEnt, Pragmatic Play, Blueprint, ELK Studios, Microgaming, Evolution (live) |
| Payments: | Debit cards, PayPal, Paysafecard, Skrill, Neteller, Neosurf |
| Withdrawal time: | 3 to 7 business days; 1% fee capped at £3 |
| Support: | Live chat and email (not fully 24/7) |
| Our rating: | 6/10 |
Operator details last reviewed: June 2026 (last updated 4 June 2026)
Pros and Cons
Pros
- Welcome wagering now sits at the UK x10 cap, so the first-deposit offer is far easier to clear than it once was.
- Around 2,200 games with genuine Evolution live tables, not RNG stand-ins.
- Casino and a light sportsbook under one login, handy if you fancy the odd bet between spins.
- New iOS app gives iPhone users proper native play rather than browser-only.
Cons
- Withdrawals drag at three to seven days, and there’s a 1% fee capped at £3 that the faster sisters don’t all charge.
- The operator was fined £1 million by the UKGC in 2025 for AML and player-protection failings, its second such penalty.
- Skrill and Neteller deposits are locked out of the welcome offer.
- No high-roller VIP scheme, and the site is near-identical to a dozen sisters, so there’s little to set it apart.
Frequently Asked Questions
Who owns Casino Kings?
Casino Kings is operated by ProgressPlay Limited, a white-label gambling platform registered in Malta with a reported head office in Limassol, Cyprus. It holds the UK Gambling Commission licence under account 39335.
What are the main Casino Kings sister sites?
The main same-operator sisters are JeffBet, Spinzwin, Jazzy Spins, Mogobet, Monster Casino and Betarno. The wider ProgressPlay network includes dozens more, such as Betrino, Luck City, Fruity King and PlaceBet.
Are Casino Kings sister sites on GamStop?
Yes. Every casino on ProgressPlay’s UK licence is covered by GamStop, so if you’ve self-excluded through GamStop you won’t be able to register or play at Casino Kings or any of its sisters.
What is the best Casino Kings sister site?
For most players JeffBet is the pick, because it runs the same casino but adds a far stronger sportsbook. If you only care about slots and quick payouts, Spinzwin edges it instead.
Is Betarno a Casino Kings sister site?
Yes. Betarno runs on the same ProgressPlay platform under the same UK licence 39335, which makes it a genuine same-operator sister. It just leans more on sports betting than Casino Kings does.
Are Jazzy Spins and Casino Kings sister sites?
Yes. Jazzy Spins is another ProgressPlay brand on the same licence, so it shares Casino Kings’ games, cashier and checks. The difference is mostly cosmetic: a quieter, darker design with fewer promos in your face.
What wagering requirement applies to the Casino Kings bonus?
Under current UK rules the wagering requirement on casino bonuses is capped at x10, and the Casino Kings welcome offer follows that cap. Always check the live terms on site, since promotions change.
Are there new casinos like Casino Kings?
Yes. Betarno is one of the newer ProgressPlay brands, and the platform regularly adds fresh skins. They share Casino Kings’ licence and games, so a new name usually means a new theme rather than a new experience.
Is Casino Kings safe and legal for UK players?
It’s licensed by the UK Gambling Commission, so it’s legal and regulated for British players. That said, the operator was fined £1 million in 2025 for AML and player-protection failings, so it’s sensible to set your own limits and use the safer-gambling tools.
Our Verdict on Casino Kings
Casino Kings is a steady, well-stocked all-rounder that’s much easier to recommend now the welcome wagering sits at the UK x10 cap. It won’t wow you, the withdrawals are slowish and the operator’s compliance record is a real mark against it, but the games are plentiful and the licence is sound. Of the Casino Kings sister sites my pick is JeffBet, which gives you the same casino plus a proper sportsbook, with Spinzwin the better shout if all you want is fast slot play. Casino Kings is for the player who likes the look of it and isn’t in a hurry to cash out; impatient or high-roller players should look to a sister instead.
New Sister Site rating: 6/10
BetSuna, a Newer Name on the Same Licence
BetSuna is one of the most recent brands to appear on the ProgressPlay licence that Casino Kings runs on. Its domain was registered in January 2026 and the site first shows up in the web archive in May 2026, making it a 2026 arrival on paperwork that has been in force since 2014. Its logo is pictured above.
It runs casino, sportsbook and bingo from one account, with a 100% up to €/$100 casino welcome carrying 35x wagering, a €/$50 sports free bet and £20 of bingo money for a £10 deposit. Because it shares Gambling Commission account 39335, the cashier, verification process and complaints route are the same ones you would meet here. Our full BetSuna review lists the wider family.