Slingo is an online casino with specialty games that runs on the SkillOnNet (SON) platform. Readers might be familiar with some other SON-operated gaming sites, it is the most-licensed provider in Denmark with about 60 licensed casinos listed by the regulator there, and about a dozen of the domains are on the .dk domains. These are usually sites like Cozino, Euro King Club, Paris Vegas Club, etc., that exist both as dot coms for the rest of the world as well as dot DK for Denmark alone.

Please see above to know whether players in your jurisdiction are allowed to register and play for real money. If you visit from a restricted jurisdiction the casino lobby simply won’t open for you. The website is available in German, English, Portuguese, and Swedish.

Slingo itself is licensed by the Malta Gaming Authority (MGA). Rather than residing among a long list of Malta-licensed sites on the MGA license registry page, it stands alone with its own license listing. The MGA usually compiles all brands licensed by a certain operator into a single license, but this one stands alone. This is a very good indication that it is not a white-label operation that simply uses the SkillOnNet license but a bona fide license holder in its own right.

Like all SkillOnNet sites, this one is ultimately owned by Prime Gaming, but again, the license is issued to Skill On Net PT Ltd of Malta. When the domain is viewed on the UK Gambling Commission website, it appears as a white label of Skill On Net Limited.

Visitors will find all of the Slingo Originals (a hybrid of Slots and bingo) here along with thousands of slots and jackpot games, roulette, blackjack, and table poker, as well as live casino games from Playtech and Pragmatic Play.

The full list of gaming services providers found on the license includes the following: NoLimit City, Evolution, Microgaming, IGT, Red Tiger, Amusnet (EGT), Blueprint, NetEnt, Play’n Go, Yggdrasil, Stakelogic, Edict (Merkur), Pragmatic Play, Sg Digital, AlchemyBet, Realistic, Relax, Oryx (Bragg), Playtech, Authentic, iSoftBet, and Push Gaming.

Not all games may be available in all areas and some of the providers on the above list are also aggregators so you might find FELT gaming delivered by Relax as well as Rabcat, Quickspin, Foxium, or any number of other boutique studios with their games delivered under Games Global (Microgaming) license on the Quickfire distribution network.

Promotions are ongoing and the incentives are presented in a unique way with clearly stated wagering requirements and other terms for most bonuses starting with the Welcome Bonus. However, not all games have the same contribution coefficient. We’ll cover the way they handle that in the bonuses section below, in a nutshell, they call weighting “combined recycling” and “special combined recycling”, which is basically 10% weighting and 50% weighting respectively.

“Comps” are referred to as bonus redemption points and new players will earn half a point for each EUR or equivalent wagered.

Payment options will vary from market to market as well, depending on where you log in from. Visiting from a desk in Finland we found all of the expected payment methods including Visa/Mastercard, Paysafecard, eWallets like Skrill, Neteller, and ecoPayz as well as Trustly, Zimpler, and Euteller. Again those options may vary depending on your location.

Please see the dynamic text above near the Slingo logo to find out if players in your locale are eligible to deposit - alternatively, you could visit the casino. If the website is not blocked you will be halfway there! The list of restricted countries is brief but it does hold some mild surprises.

For instance, players from Slovakia and Bulgaria can play random number generator (RNG) games like slots, Slingo, and blackjack but aren’t allowed to play in the live games area.

Recently, we were unable to visit from a Japan IP and when a tester checked the site from the Netherlands they were informed that KSA licensing was “in progress”. Any of these conditions can change with time so please visit or see if your country is mentioned as “good to go” above.

The RTP (theoretical return to player percentages) of all games can be found in the help file for each game and practice mode is available for all but jackpots and live games.

The site seems to have undergone a reset several years ago, adding the full complement of online games to go with Slingo Originals. The reputation was good then and it’s good now. In October 2020 it was announced that Prime Gaming was migrating all of the rest of its brands from the Aspire Global platform to SkillOnNet. The test cases prior to that were the launches of LuckyMeSlots, ICE36, and LordPing onto the SON network over the two years prior.

A perennial grumble at all SON sites has been the occasional slow verification process. However, once documents are approved players are paid out quickly - eWallet payments are processed the same day and bank wires will get to you in a matter of days, not weeks.

Over a decade ago there was a problem with one of SkillOnNet’s own games, as opposed to a game on the network from another provider. The double-up feature on video poker was either not random or the odds were not configured properly for a 50/50 chance at double or nothing. While the developers never did follow up with the complainants, the game was quietly fixed and there have been no other valid complaints about game math since 2012.

Ten years later, in May of 2022, the ASA in Great Britain informed SkillOnNet that they couldn’t advertise games as being “hot” or “cold” as players might assume they have more control than they do over winning a game of chance.

Other complaints we find about “sister-sites” like one of the oldest, Simba Games, don’t make sense and are probably just bad housekeeping by the sites they appear on. Each of them is a single statement of the case, with no reply by the operator or forum moderators, and no follow-up from the players. This makes it seem that the players must have been satisfied shortly after lodging the posts and simply never got around to extending a courtesy to other players by informing us they had been paid. Of course, they could have just forgotten about them, but some were 4-digit wins so that is unlikely.

Those who would take one mathematical miscalculation from a decade ago and devalue the platform, its integrity, or the brand should be very clear about why.

I’m only aware of two sites that have blacklisted them for that and they are Wizard of Odds and the POGG. This reviewer would place at least half of the responsibility for that error at the feet of the regulator, but as we learned from the GTECH fiasco around the same time frame, most jurisdictional overseers simply weren’t that interested in player protections or holding game developers to account in those days.

With that and the fact that no other such instances have occurred for over a decade, coupled with the fact that SkillOnNet has been licensed in the UK since 2014, where theoretical return to player percentages are reconciled with actual RTP, this reviewer will not be biased by a single ten-year-old mistake.

We’ll take a look at the Slingo of today, the software and games, bonuses and promotions, banking and customer service, and identify any pitfalls to look out for after doing a deep dive into the fine print of the terms and conditions. If any terms seem predatory or unenforceable in a free market like the EU, we’ll take a closer look at those and do a deep internet search for any other complaints we might have missed - whether at Slingo or any other sister site since the casino migrated from Aspire Global to SkillOnNet.

Finally, we’ll wrap it all up with our overall impression of the gambling club and point out anything else that comes to mind in the course of the journey that may help our readers make an informed decision.

Rarely, and that is the case here, we will simply invite experienced players who know what they are looking for to visit and try it on for size, or skip to the pitfalls and final word. The following body of this review will be detail-oriented with some anecdotal commentary on games. So if you want to go along for the ride, you are more than welcome as we look at the…

Software and Games

The casino runs on the SkillOnNet platform. SON has been in the business since 2005 when it developed and launched its proprietary platform for a real money backgammon site called BGRoom. From there they went on to develop a suite of its own games, but from the time they released the backgammon platform in Beta mode, they were offering software solutions to other providers. That makes it one of the oldest multi-developer software platform providers still in operation today.

Propriety games, as opposed to aggregated games from other developers, are now marketed under the trade name Green Valley Games or GVG.

By 2012 they had a dozen gambling sites running on the platform including Casino Red Kings, EU Casino, ClubAsia, and MegaCasino - one of the first to be licensed in Denmark and a couple of years later one of the pioneer sites licensed in the German state of Schleswig-Holstein in 2014. In 2012 backgammon sites had been launched in Denmark, Norway, Sweden, Finland, and Asia writ large as well as a dot com site for the rest of the world.

By way of illustration, this simply establishes the platform as one of the legacy software, trusted by players, regulators, and operators globally.

The Slingo site itself comes off a bit differently than your run-of-the-mill gambling hub. The feel, brought on by the aesthetics and narrative, is closer to that of a bingo site without the kitsch, brouhaha, or blather. It really does give the portamento hybrid feel of slots and bingo, and that is no mean fete.

Navigation is snappy, smart, and intuitive with the same menu options for desktop and mobile.

While you will have a choice of languages whenever you visit, the country of your IP might determine some of your options. The site is available in several regional English versions, as well as German, Brazilian Portuguese, and Suomi.

Slots

We find about 5,000 different slot games here so players will never be starved for new types of games to play. For those who want a chance to win huge jackpots while still getting good return to player payouts, navigate to the Megaways titles from dozens of providers. There’s even a unique SkillOnNet-branded Megaways game. The title was developed in association with 1x2 Network and uses Big Time Gaming’s patented Megaways game mechanics.

Jackpot slots

Progressive jackpot slots should always be played responsibly and never “chased”. The odds of winning a multi-million euro jackpot are nearly as slim as they are for winning a life-changing lottery draw. With that being said, it is also true that if you don’t play you stand no chance of winning so it’s always wise to play progressives with both of those truths in mind.

You might notice that some of the jackpot games always seem to have bigger jackpots than many others - there are good reasons for that.

Firstly, network progressive jackpots work by taking a small percentage of the stake every player bets on the same game across all online casinos in the network. Next, some of the games are pooled so you will see the same jackpot amount on several different games - this means they are all growing with every stake, and lastly these games are simply the most popular - since they have big jackpots more people play them and the pots grow even faster because of the player activity!

Some of the most popular games that have large jackpots and payout often due to extensive gameplay might include Mega Moolah, Hall of Gods, Mega Fortune, and Mega Jackpots. It’s a pretty good bet that the jackpot will be over a million euros when you play one of these games.

Live Casino

Slingo is not only about offering hybrid games and jackpot slots - there are also classic casino floor games to play from top providers like Evolution and Authentic Gaming to name just two. Whether you want to play roulette, poker, blackjack, or baccarat against a live dealer or prefer the fun-filled game show titles with huge potential jackpots, you can’t go wrong here when you enter the live gaming lobby.

Bonuses and Promotions

There’s always something on tap to make your gameplay more fun and maybe even to increase your chances of a big win. In addition to the welcome bonus (please see above or visit for details) there are seasonal and holiday offers, loyalty points, a referral bonus, Daily Pick bonuses, and all kinds of different tournaments to participate in.

Bonus terms can and do change as do wagering requirements, restricted games, and even game weighting so please be sure to read the terms and conditions above and on the site before locking into any bonus play. We currently find 60xb wagering, no max cashouts, and a limited amount of time to use free spins and other bonuses.

Banking and Customer Service

One great thing about a popular online casino having such a wide reach around the globe is the plethora of banking options with at least one familiar deposit and withdrawal method for almost any player anywhere. We find about 20 options here ranging from eWallets (same-day payouts) to instant bank transfers and bank wires. Players who are concerned about keeping as much distance between their identity and their casino banking can even use Vega Wallet - a points-based deposit method fashioned directly after Venus Points.

Payouts are fast once documents have been verified and players can cash out up to €5,000 per transaction or €10,000 each week - however, we have also read reports from reliable sources that state there is no maximum number of transactions per day, week, or month.

As for verification of processing speeds, we find an LCB.org “By the players for the players” report wherein an anonymous player from Finland completed registration, deposit, document verification, and a bank wire cashout all within 5 days with the actual bank wire appearing in their account within 48 hours of requesting the withdrawal. That is a nearly unheard-of speed in delivering a bank wire. You can read the entire report (here).

In general, eWallet payouts are as good as instant while wire transfers can take 2-5 business days. All withdrawals except bank wires are free of charge. The minimum deposit is currently €10 and the minimum withdrawal is €30.

Customer care

We have read one report wherein the player asked a live chat agent to remove their bonus and never got a chat response. However, the bonus was removed quickly without a note. Live chat is not always available 24/7 and there is no telephone support for common issues. An email address is provided with fast turn-around times.

They also provide a comprehensive FAQ section that should answer most questions whether you are a novice or seasoned online casino player. FAQs are essential to new players who may have never played online games before and don’t want to bother with asking a lot of simple questions.

The blog section also answers many important questions players might have about responsible gambling, bankroll management, and other topics to help visitors get the most for their entertainment dollars out of each visit to the site. “Responsible Gambling 101” might be a good place for new players to learn what many others already know including: “It's Not A Way To Make A Quick Buck; Gambling is a form of entertainment, not a way to earn money, and There is No Hack to Win.”

Pitfalls

• Some bonuses may have wagering requirements on the high side (60xb or 30xd+b)
• Potentially confusing max bet rules [10% (min. € 0.10) of the bonus amount or €5 whichever is lower]
• No phone support, live chat not 24/7
• No BTC or other crypto support

The Final Word

Slingo is a modern online casino with a unique offering. While quite a few gaming venues offer Slingo games, this is the official Slingo site. Look for specialty games like Slingo Rainbow Riches · Slingo Monopoly · Slingo Riches · Slingo Extreme · Slingo Deal or No Deal, and Slingo Advance among many other titles.

For the new breed of online players, as well as long-time Slingo fans, the site also offers progressive jackpot slots and Megaways games from a variety of developers. Video poker and other popular online games are all found here.

The live casino lobby offers players live games around the clock whether you want to play high-stakes baccarat with a low house edge or go for the gusto with higher risk, lower bets, and payouts up to 10,000x your stake on some of the more social Evolution live casino games - they have your ticket to fun.

Banking is quick and easy whether you are depositing or cashing out winnings and there are plenty of options no matter where you live. The bonus scheme is attractive, especially for extending your gameplay but also as a way to increase your chances of hitting a big win on games like SkillOnNet Megaways or your other favorite Megaways games.

Some reports indicate that document verification can take a few days or longer for some players, however, we also see a player who opened their account, deposited, verified documents, and had their winnings all within a 5-day timeframe with 48 hours for a wire transfer once it was requested.