Slot Monster Review for May 2024: Welcome Bonus & Promotions

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Our Verdict

Slot Monster Casino – Large All-Round Game Selection

Slot Monster Casino excels at providing a broad range of games. It features over 3,000 online slots, more than 100 live dealer games, and dozens of blackjack and roulette variations. You can also play casino poker variants, dice games, and crash gambling games here.

I didn’t have trouble navigating to the different sections. The main sections like Slots, Live Casino, and Promotions are easy to find on the desktop and mobile versions. However, I would like filters (e.g. Blackjack, Jackpot) at the top of the game lobby.

As I’ll cover later in this Slot Monster review, some aspects don’t measure up to the industry’s top casinos. Problems that I’ll expand upon include a small welcome offer, limited promotions, and a lack of sports betting.


  • Over 3,000 slots
  • 7-figure slots tournaments
  • Dozens of blackjack & roulette variations


  • Small welcome bonus (€100 max)
  • Few promos beyond the welcome offer
  • Game lobby needs more filters
  • 0-20% rollover contributions for certain games
  • No alternative gambling options (e.g. sports betting)

We’ve thoroughly explored Slot Monster’s games, promotions, banking options, and customer support to come to our verdict.

Slot Monster review

As you’ll see throughout the following Slot Monster Casino review, this gaming site does some things well—although it needs to improve upon even more aspects.

Slot Monster Bonus: Rating 5/10

The Slot Monster bonus matches your first deposit by 100% up to €100. You do not need a Slot Monster promo code to claim this offer. Notable terms and conditions include 35x rollover, a €5 max bet, and reduced rollover contributions for certain games (e.g. live game shows = 50%).

Although we appreciate a Slot Monster bonus being available, this offer is small compared to many online casinos. It also doesn’t last beyond the initial deposit, unlike some casino bonuses like the one at Instant Casino (permanent 10% cashback).

Bonus Type Welcome Bonus
Bonus Code: N/A
Welcome Bonus: 100% up to €100 
Wagering Req: 35x
Minimum Deposit: €20
Bonus Terms: €5 max bet
Slots contribute 100% to rollover
Live game shows contribute 50%
Other qualifying games contribute 20%
Last Verified: May 2024

Slot Monster Promotions & Offers: 5/10

This gaming site does not stand out in terms of promos—hence the 5/10 rating in this category of our Slot Monster review. It doesn’t provide continual cashback like Instant Casino, deposit bonuses, or free spins.

However, it at least features several long-running slots tournaments and events through the software developer Pragmatic Play.

Slot Monster review promotions

Slots Drops & Wins

Drops & Wins will pay €2 million in total prize money through Pragmatic Play monthly slots tournaments and cash drops.

Each tourney offers a €40,000 prize pool and awards €5,000 to first place. Every cash drops event delivers €30,000 in random prizes, including up to a 2,500x bet multiplier.

Mega Wheel Madness

This promotion will pay out €1 million total prizes via Pragmatic’s Mega Wheel live game. It awards €5,000 in daily drops and features €50,000 Friday tournaments.

Pragmatic Crash & Win

At the time of writing, the Crash & Win promo will award €300,000 total through certain Pragmatic games. It delivers €3,500 in daily prize drops, with first place collecting a €500 payout.


As mentioned earlier in this Slot Monster review, no cashback bonus is available here. Therefore, you can’t look forward to receiving money back from losing sessions. Contrast this situation to Instant Casino, where you always get 10% weekly cashback.

Slot Monster No Deposit Bonus

We don’t currently see a Slot Monster bonus code available for a no deposit offer. The only promo open to new Slot Monster online casino players is the 100% up to €100 welcome bonus.

You can re-check this Slot Monster casino review for any potential updates on a no deposit bonus.

Slot Monster Games: 9/10

One area where Slot Monster truly shines is game selection. This online casino offers 3,000+ slots, along with many blackjack, roulette, and live dealer games.

You’ll find anything you want whether you’re looking to chase a slots jackpot or play live blackjack.

Slots Games Selection

Slot Monster lives up to its name by providing thousands of online slots. It keeps adding to its collection, meaning you’ll continue finding new games here each month.

Some software developers that supply Slot Monster include Hacksaw Gaming, NetEnt, Nolimit City, Play’n Go, and Pragmatic Play. We tried some of the games and noticed that the slots odds were favourable on most (i.e. 96% RTP and above).

Slot Monster Casino slots

Live Casino

The Slot Monster live dealer casino is almost as impressive as the slots section, featuring dozens of games and covering many categories.

Examples of the games include Crazy Time, Lightning Roulette, Mega Wheel, Power Blackjack, and Sweet Bonanza CandyLand. Notable studios that provide these games are Evolution Gaming and Pragmatic Play.

Slot Monster live dealer casino


Dozens of casino poker games are available at Slot Monster, like Casino Hold’Em, Casino Stud, Caribbean Poker, First Person Poker, High Hand Hold’Em, and Texas Hold’Em Bonus.

Unfortunately, you’ll need to manually search for all of these games, because no dedicated poker section is available.

Casino Features

Slot Monster online casino isn’t bursting with features, but it does have some basic extras. You can use a search engine to locate specific games—a must given the lack of game lobby filters.

Slot Monster also features a Help Centre and a Responsible Gambling section. Overall, though, we don’t notice any truly defining features at this gaming site.

Slot Monster Sports: N/A

No sports betting is available at Slot Monster. This gaming site sticks to casino games like slots, baccarat, blackjack, and roulette. Therefore, you must find another gambling site if you’re looking to place sports bets.

Instant Casino is an alternative option that offers sports betting, covering many markets like football, cricket, rugby, basketball, boxing, esports, MMA, and more.

In addition to sports betting, Instant has a similarly sized casino game selection (4,000+) to Slot Monster. We recommend checking out Instant Casino if you’re not satisfied with Slot Monster.

10% Weekly Cashback Up To $10,000

10% Weekly Cashback Up To $10,000

  • Premium live casino tables with HD streaming
  • Accepts VISA/Mastercard for deposits & instant withdrawals
  • High betting limits - Play games from Pragmatic, NetEnt, Evolution
5 Stars
Play Now

Slot Monster Payment Methods: 5/10

The Slot Monster online casino payment methods are thin, with only Visa, Mastercard, MiFinity,, and bank transfer available.

Therefore, this gaming site doesn’t earn high marks regarding banking options in our Slot Monster review.

Payment Methods Deposit Withdrawals Fees Payment Speed
Visa None 3-7 days
Mastercard None 3-7 days
Bank transfer Varies 7-10 days
MiFinity None 2-3 days None 0-1 days

Slot Monster Withdrawal Process: 6/10

Slot Monster is not among fast withdrawal casinos, but it eventually gets the job done. It typically pays a few days later than leading gaming sites like Instant Casino. The following steps show how to cash out from Slot Monster:

  1. 1. Make Sure You Have the Minimum Withdrawal

    You need at least €25 before withdrawing funds from Slot Monster. Therefore, your first step should be ensuring that you have the necessary funds to cash out.

    If not, you’ll either need to place another deposit or keep playing games and winning.

  2. 2. Visit the Cashier Section

    The next step involves navigating to the banking section, where you’ll find the withdrawal methods. Slot Monster lets you cash out via credit card, bank transfer,, and eWallet.
  3. 3. Verify Your Account

    If you haven’t done so already, Slot Monster will prompt you to complete account verification before requesting your first payment.

    This process involves providing relevant documents, such as a driver’s license and proof of address.

  4. 4. Select a Banking Method

    You’ll need to choose a cahout option and enter how much you would like to withdraw. Remember, the minimum withdrawal at this casino is €25.
  5. 5. Collect Your Payment

    The final step is to wait on your funds to arrive. Waiting time depends on how quickly Slot Monster processes the transaction, and which banking option you choose.

Slot Monster Customer Support: 7/10

The Slot Monster customer service is above average based on response time and contact methods. I reached out to the support team through email and live chat during this Slot Monster review.

I received a response through live chat almost immediately, but email took several hours. You can see further details on this casino’s customer support below:

Slot Monster Design and User Interface: 7/10

Slot Monster has a fun and entertaining design, with a unique logo and simple color scheme. It’s not among the best international casinos regarding usability and could use some upgrades in this area.

Nevertheless, you should still be able to find your way around Slot Monster. You can read about my personal experiences using the desktop and mobile versions below.

Desktop Experience: 6/10

The Slot Monster desktop setup is okay but lacking in certain areas. Links to main sections like the Lobby, Slots, Live Casino, Promotions, and Help Centre are easy to find.

However, the Slots section needs filters, especially with over 3,000 games available. I also wouldn’t mind seeing guides, like how to play slots or how to play live casino games.

By comparison, the aforementioned Instant Casino offers a superior desktop user experience. It features more filters in the game lobby, including All Games, New, Slots, Live Casino, and Discover.

Instant Casino provides even more filters for its online sportsbook and a detailed explanation on the 10% cashback offer.

Slot Monster Casino desktop

Instant Casino desktop

Mobile Experience: 8/10

No Slot Monster app is available, but you can play through your browser on iOS and Android devices. I find the Slot Monster mobile casino easier to scroll through versus the desktop version. The mobile site also has more game categories than the desktop casino.

Despite an improved mobile interface, Slot Monster still doesn’t live up to Instant Casino in this category. Like its desktop setup, the Instant mobile casino has more game filters than Slot Monster mobile. This factor allows me to quickly find desired game categories.

Slot Monster mobile casino

Instant Casino mobile

Account Verification

As covered earlier in this Slot Monster review, you must verify your account before withdrawing funds. The following steps explain how to complete the verification process:

  1. 1. Sign Up for an Account

    You’ll need to register for an account before depositing at Slot Monster Casino. Signing up is the first step towards account verification. This process provides Slot Monster with your personal details (e.g. name, address, phone number).
  2. 2. Provide a Photo ID

    You must complete the second and third steps before you’re able to cash out. Slot Monster requires that you send a copy of a photo ID during the second step. All four corners of the ID and its words must be clearly visible.
  3. 3. Send Proof of Address

    The final step for basic verification includes sending proof of your address. A common way to complete this step is to send a utility bill that’s less than three months old.
  4. 4. Verify Your Income Source (Big Deposits Only)

    You only have to worry about this part when depositing over €5,000. Examples of income sources include employment, business ownership, inheritance, and investments.

Similar verification steps are present at Instant Casino. However, I noticed that Instant completed its review of my account quicker than Slot Monster. Therefore, I was able to withdraw funds quicker at Instant Casino.

Responsible Gambling

Slot Monster holds licensing with the Curaçao Gaming Control Board. Therefore it must follow standards set forth by the CGCB regarding money laundering and responsible gambling.

Speaking of the latter, Slot Monster has a section dedicated to responsible gaming. This page covers Slot Monster’s tools to help vulnerable players, such as self-exclusion.

You might also try exercising the following tips to stay safe when gaming:

  1. Develop a bankroll management plan and stick to it. For example, you might set up a €250 monthly gaming budget.
  2. Never try to win back losses. You are never due to win anything back during a losing session, so you shouldn’t ever continue playing just to recoup losses.
  3. Know of helpful responsible gambling resources. Organizations like GamCare and the Responsible Gambling Council can help anybody who may be developing a gaming problem.


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That’s why, here at Techopedia, we have an in-house review process that covers every aspect of a gambling website.

This includes:

  • Games and betting markets
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You can take a look at our detailed guide on how we test gambling platforms featured on Techopedia.


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    Affiliate Disclosure: Techopedia may receive advertising commissions for visits to a suggested operator through our affiliate links, at no added cost to you. However, all our recommendations are unbiased and follow a thorough review process. Gambling can be addictive, please play responsibly and you must be of legal gambling age.


    1. (Curaçao Gaming Control Board)
    2. (GamCare)
    3. (Responsible Gambling)
    Jeremy Olson
    Sports Betting and Casino Expert
    Jeremy Olson
    Sports Betting and Casino Expert

    Jeremy has been writing about gambling since 2004, when he began covering poker and casino games. He has since written and ghostwritten thousands of pieces involving casino games, poker, and sports betting. While he's covered strategy and news in the past, his key areas of focus today include how-to pieces, promotions, and reviews. Jeremy has also written for BasketballInsiders,, OnlineUnitedStatesCasinos, and