Calvin Casino Review

Quick Facts

Launched: March 2017
Software: iSoftBet, Microgaming, Mr Slotty, Playson & Net Entertainment
Welcome Bonus: 200% first deposit bonus up to €200 plus 150 free slot spins on Starburst slot
Visit Calvin CasinoT&Cs Apply

Calvin Casino is a new name among new casinos which has appeared on the online gambling scene in March 2017. Owned and operated by HighWeb Ventures, this recently launched online gaming venue holds a Curacao license and specialises in slots. The website made elegant by a dark blue background and up-market visuals offers access to about 120 games developed by iSoftBet and a couple of other providers. A generous offer of 200% up to €200 bonus is not only a welcome extended to new players, but is also made available on ongoing basis, together with other treats provided daily. The list of restricted countries is relatively short, though it does include both the USA and the UK.


  • 200% first deposit bonus up to €200 plus 150 free slot spins on Starburst slot

Visit Calvin Casino

Your relationship with Calvin Casino starts with a welcome offer of 200% Slots Bonus up to €200, plus 150 Free Spins on Starburst. A deposit of €25 or more will make you eligible, and the bonus will have to be wagered 35 times before you can withdraw the respective winnings.

There’s plenty more to look forward to once you’re past the initial welcome proposal. The Casino will actually offer the same 200% up to €200 on each of your following deposits, only instead of 150 Free Spins on Starburst, you’ll benefit from 50. Additional rewards are available every single day, including deposit and no-deposit bonuses, as well as up to 1,000 free spins and 100 super spins each month.

Software & Game Selection

Games library counts about 120 items and is stocked by an interesting mix of providers, featuring products from iSoftBet, Mr Slotty and Playson. While you’re surely well familiar with the first developer, and perhaps have even played a number of Playson games, Mr Slotty might be a new experience. This young Lithuania-based developer was founded in 2015 with a mission to “create products that are genuinely innovative and can make a difference to the industry.” And they’ve been quite successful so far, choosing unusual themes and producing games with distinctive visuals.

Calvin Casino does not require a software download in order to launch any of the games, and they all come with a Play Demo button which allows you to play for free. Jackpot Rango, The Love Guru and Neon Reels are some of the more popular iSoftBet titles made available. Very recently launched Forest Mania is a bright and colourful game with 100 paylines, randomly triggered free spins, regular symbols randomly transforming into wilds, wild reels and, most unusual of all, double reel. Robo Smash Christmas is another of the more recent releases, offering extending wilds and a Robo Smash feature which triggers free spins with stacked wilds.

Other popular slots include Unicorn Gems, She/He Club, Gold Miners and Hot Honey 22 by Mr Slotty, and Dracula’s Family and Eastern Delights from Playson. While the operator states there are tens of millions of euros waiting to be won by playing Mega Moolah, Major Millions and other progressives, neither can actually be found on this site. Perhaps an extension of gaming range is planned and will soon take place. Calvin does not currently cater to fans of table games, so you’ll only be able to play one Blackjack and a couple of Roulette versions. That is, unless you’re interested in live gaming, in which case you’ll get to choose among 15 Roulette, Blackjack, Poker and Baccarat games powered by BetConstruct. Live games can’t be played for free, but you can take a peek at the action using View button.


Security of financial transactions and a wide choice of available options are the two most important elements to consider when evaluating a casino’s banking services. Calvin Casino offers about 15 deposit methods to choose from, among which Visa and MasterCard, Skrill, Neteller, EcoPayz, Paysafecard, Giropay, mobile payment option Zimpler, and Bank Transfer. The minimum allowed deposit amount is €10. When it comes to withdrawals, list is a bit shorter but still includes credit cards, E-wallets, pre-paid cards and a few more options. The minimum amount of a single payout is €25, while the maximum is set at €10,000 monthly. Do note that all real money deposits have to be wagered at least once before a withdrawal can be made, and that withdrawals are limited to once a week. Taking into account the withdrawal processing time, even when using E-wallets it could take up to 3 days before you’ll see the cash in your bank account.

Visa and MasterCard, Skrill, Neteller, EcoPayz, Paysafecard, Giropay, mobile payment option Zimpler, and Bank Transfer


Operated by HighWeb Ventures
Licensed and regulated by Curaçao eGaming

While an operating license is a must for a casino to be able to offer their services, the issuing regulatory body is the first indicator of the kind of treatment a player can expect. Curacao is one of the oldest providers of regulated e-gaming services and very popular among the operators, but it doesn’t have the best reputation when it comes to protecting the players’ interests. Having said that, Curacao-licensed Calvin Casino utilises the standard 256-bit SSL encryption to protect sensitive information, and their games use an RNG tested by iTech Labs to ensure they are fair and operate correctly.

Contact Info & Social Activity

An FAQ list is provided to answer only the most basic questions, so chances are that at some point you will want to talk to the Casino staff directly. Customer Support Team is ready to offer assistance Monday to Friday between 08:00 to 20:00 CET via live chat and email, while during the week-ends they can be reached only by email. An additional option is to use Inbox link in site’s header (when logged in) and create a ticket. At the time of this review, the brand was not active on any of the social networks.


Calvin Casino is a somewhat unusual proposition, firstly because of the developers featured, and secondly due to intensity and size of ongoing promotional offers. And while being able to play games from a young and upcoming developer alongside a well-established one is appreciated, the portfolio is still very small. The website, which content-wise looks like work in progress, offers bits of confusing communication, as is the case with Microgaming progressives which are mentioned but not actually included. It almost feels as if the operator had a launch deadline to keep at all costs, and has gone online before being 100% ready. That, coupled with an operating license which does not come from the most reputable organisation in the business, makes us a bit uncertain as to how trustworthy this new gaming venue is. So, if a tempting promotional offer motivates you enough to give them a try, proceed with caution.