Cosmobet Casino – Review

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Chance of Winning
HIGH

Casinos can alter the return-to-player of almost any online slot — and a majority of casinos reduces your chances.

Cosmobet is one of the very few that offers the highest return-to-player across all the games we assessed. You can find the results here.

Visit Cosmobet Casino Website

18+. New players only. Please play responsibly. T&C’s apply.

Use Promo Code: WELCOME Get 150% Bonus up to $500 & 50 Free Spins on Book of Dead 30x wagering on bonus 30x on deposit 30x on free spins winnings

Licensed in Curacao.
Visit Cosmobet Casino

18+. New players only. Please play responsibly. T&C’s apply.

Slide to compare casinos

  • Cosmobet
    HIGH chance of winning

    Highest RTP setting
    on all slots in our test

    Use Promo Code: WELCOME Get 150% Bonus up to $500 & 50 Free Spins on Book of Dead 30x wagering on bonus 30x on deposit 30x on free spins winnings

    Visit Cosmobet

    18+. New players only. Please play responsibly. T&C’s apply.

  • Hiddenjack
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Get 100% Bonus up to €1000 & 100 Free Spins on Pray For Three 40x wagering on bonus 0x on deposit 40x on free spins winnings

    Visit Hiddenjack Read Hiddenjack Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Rolletto
    HIGH chance of winning

    Highest RTP setting
    on all slots in our test

    Get 200% Bonus up to $500 & 50 Free Spins on selected slots 30x wagering on bonus 30x on deposit 30x on free spins winnings

    Visit Rolletto Read Rolletto Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Snatch Casino
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Get 200% Bonus up to $1000 & 100 Free Spins on selected slots 30x wagering on bonus 30x on deposit 30x on free spins winnings

    Visit Snatch Casino Read Snatch Casino Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • BC.Game
    HIGH chance of winning

    Highest RTP setting
    on all slots in our test

    Use Promo Code: great Get 150% Bonus up to $500 & 100 Free Spins 45x wagering on bonus 45x on deposit 40x on free spins winnings

    Visit BC.Game Read BC.Game Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • RollingSlots
    MEDIUM chance of winning

    Highest RTP setting
    on some slots in our test

    Get 100% Bonus up to $500 & 100 Free Spins on selected slots 45x wagering on bonus 1x on bonus 45x on free spins winnings

    Visit RollingSlots Read RollingSlots Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Betlabel
    HIGH chance of winning

    Highest RTP setting
    on all slots in our test

    Get 100% Bonus up to $300 & 30 Free Spins on Aloha King Elvis! 35x wagering on bonus 0x on deposit 35x on free spins winnings

    Visit Betlabel Read Betlabel Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • 7BitCasino
    MEDIUM chance of winning

    Highest RTP setting
    on most slots in our test

    Bonus on the 4 first deposits Get 100% Bonus up to $400 & 100 Free Spins on Elvis Frog in Vegas 35x wagering on bonus 1x on deposit 35x on free spins winnings

    Visit 7BitCasino Read 7BitCasino Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Winz.io
    HIGH chance of winning

    Highest RTP setting
    on all slots in our test

    Spin the Wheel of Winz for a guaranteed prize! Get 25 Free Spins on Winz to the Moon No wagering on free spins winnings

    Visit Winz.io Read Winz.io Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • BitStarz
    MEDIUM chance of winning

    Highest RTP setting
    on most slots in our test

    Get 100% Bonus up to $100 & 180 Free Spins on selected slots 40x wagering on bonus 1x on deposit 40x on free spins winnings

    Visit BitStarz Read BitStarz Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Stake
    HIGH chance of winning

    Highest RTP setting
    on all slots in our test

    Use Promo Code: GREAT Take part in $75'000 Raffle every week & $100'000 Race every day The more you wager the higher are your chances of winning

    Visit Stake Read Stake Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Chipstars
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Get up to 200% bonus up to $400 on your first deposit Wagering releases bonus as real money. No max bet, game restrictions or time limit.

    Visit Chipstars Read Chipstars Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • VeloBet
    HIGH chance of winning

    Highest RTP setting
    on all slots in our test

    Use Promo Code: WELCOME Get 150% Bonus up to $500 & 70 Free Spins on Book of Dead 30x wagering on bonus 30x on deposit 30x on free spins winnings

    Visit VeloBet Read VeloBet Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • KatsuBet
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Bonus on the 4 first deposits Get 100% Bonus up to $400 & 100 Free Spins on Aloha King Elvis 35x wagering on bonus 1x on deposit 35x on free spins winnings

    Visit KatsuBet Read KatsuBet Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Mirax Casino
    MEDIUM chance of winning

    Highest RTP setting
    on most slots in our test

    Get 100% Bonus up to $400 & 100 Free Spins on Candy Monsta 35x wagering on bonus 1x on deposit 35x on free spins winnings

    Visit Mirax Casino Read Mirax Casino Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • DailySpins
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Get 100% Bonus up to $1,000 & 200 Free Spins on Tramp Day 40x wagering on bonus 1x on deposit 40x on free spins winnings

    Visit DailySpins Read DailySpins Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Casino Orca
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Use Promo Code: ORCA1 Get 100% Bonus up to $500 It’s a “sticky bonus” which means that it can’t be converted to real cash.

    Visit Casino Orca Read Casino Orca Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • GratoWin
    MEDIUM chance of winning

    Highest RTP setting
    on some slots in our test

    Use Code: GRATO100 50 no deposit freespins! Get 100% Bonus up to $1,000 35x wagering on bonus 1x on deposit

    Visit GratoWin Read GratoWin Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • PlayOro
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Use Promo Code: PLAYO100 Get 100% Bonus up to $1000 35x wagering on bonus 0x on deposit

    Visit PlayOro Read PlayOro Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • PlazaPlay
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Use Code: PLAZA100 Get 100% Bonus up to $1,000 35x wagering on bonus 1x on deposit

    Visit PlazaPlay Read PlazaPlay Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Leon
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Get 150% Bonus up to $20,000 & 100 Free Spins on Book of Dead 40x wagering on bonus 0x on deposit 20x on free spins winnings

    Visit Leon Read Leon Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Art Casino
    MEDIUM chance of winning

    Highest RTP setting
    on most slots in our test

    Use Promo Code: ART125 Get 125% Bonus up to $500 & 50 Free Spins on Big Bass Splash The bonus is "sticky" which means it can not be wagered to cash

    Visit Art Casino Read Art Casino Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • CasinoStars
    MEDIUM chance of winning

    Highest RTP setting
    on most slots in our test

    Use Promo Code: STARS1 Get 100% Bonus up to $300 0x wagering on bonus "Sticky bonus" which means that it can't be converted to real cash.

    Visit CasinoStars Read CasinoStars Review

    18+. New players only. Please play responsibly. T&C’s apply.

  • Bbets
    LOW chance of winning

    Low RTP setting
    on many slots in our test

    Get 100% Bonus up to $250 & 100 Free Spins on Book of Dead 40x wagering on bonus 0x on deposit 40x on free spins winnings

    Visit Bbets Read Bbets Review

    18+. New players only. Please play responsibly. T&C’s apply.

How We Test the Chance of Winning

Like we covered above, casinos can lower your odds of winning across their games — but Cosmobet decided to keep your chances of winning high.

They could lower your odds by adjusting something called the "Return to Player" or "RTP". The lower the RTP, you're less likely to win — and the more the casino keeps.

Our testing checks this by checking the same 10 top games at each casino and checking their RTP settings against the best RTP versions of those same titles.

You can view the detailed results we’ve listed below. Slide right to find out how other online casinos stack up.

Popular games Best RTP
Gates of Olympus 96.50%
Sugar Rush 96.50%
Le Bandit 96.34%
Wanted Dead Or A Wild 96.38%
Big Bamboo 96.13%
Big Bass Bonanza 96.71%
Book of Dead 96.21%
Reactoonz 96.51%
Fire In The Hole 2 96.07%
Temple Tumble 96.25%
Cosmobet
96.50%
96.50%
96.34%
96.38%
96.13%
96.71%
96.21%
96.51%
96.07%
96.25%
Hiddenjack
94.50%
94.50%
92.17%
92.33%
-
94.02%
-
-
94.08%
-
Rolletto
96.50%
96.50%
96.34%
96.38%
-
96.71%
96.21%
96.51%
96.07%
96.25%
Snatch Casino
96.50%
96.50%
92.17%
92.33%
94.08%
96.71%
87.25%
87.50%
94.08%
94.00%
BC.Game
96.50%
96.50%
96.34%
96.38%
96.13%
96.71%
96.21%
96.51%
96.07%
96.25%
RollingSlots
94.50%
94.50%
94.23%
94.55%
94.08%
94.02%
94.25%
94.51%
92.07%
94.00%
Betlabel
96.50%
96.50%
96.34%
96.38%
-
96.71%
96.21%
96.51%
96.07%
-
7BitCasino
94.50%
94.50%
96.34%
96.38%
96.13%
94.02%
96.21%
96.51%
92.07%
94.00%
Winz.io
96.50%
96.50%
96.34%
96.38%
96.13%
96.71%
96.21%
96.51%
96.07%
96.25%
BitStarz
96.50%
96.50%
96.34%
96.38%
96.13%
96.71%
94.25%
94.51%
96.07%
96.25%
Stake
96.50%
96.50%
96.34%
96.38%
96.13%
96.71%
96.21%
96.51%
96.07%
96.25%
Chipstars
94.50%
94.50%
92.17%
92.33%
-
94.02%
87.25%
87.50%
94.08%
94.00%
VeloBet
96.50%
96.50%
96.34%
96.38%
96.13%
96.71%
96.21%
96.51%
96.07%
-
KatsuBet
94.50%
94.50%
-
-
-
94.02%
-
-
92.07%
94.00%
Mirax Casino
96.50%
96.50%
96.34%
96.38%
96.13%
96.71%
96.21%
96.51%
92.07%
94.00%
DailySpins
94.50%
94.50%
92.17%
92.33%
-
94.02%
87.25%
87.50%
92.07%
94.00%
Casino Orca
94.50%
94.50%
96.34%
96.38%
94.08%
95.67%
87.25%
87.50%
96.07%
94.00%
GratoWin
94.50%
94.50%
92.17%
92.33%
-
94.02%
94.25%
94.51%
96.07%
-
PlayOro
94.50%
94.50%
92.17%
92.33%
94.08%
94.02%
94.25%
94.51%
-
94.00%
PlazaPlay
94.50%
94.50%
92.17%
92.33%
-
-
87.25%
87.50%
-
-
Leon
94.50%
94.50%
92.17%
92.33%
96.13%
94.02%
87.25%
87.50%
94.08%
-
Art Casino
94.50%
94.50%
94.23%
94.55%
94.08%
95.67%
96.21%
96.51%
96.07%
94.00%
CasinoStars
94.50%
94.50%
94.23%
94.55%
94.08%
95.67%
96.21%
96.51%
96.07%
94.00%
Bbets
94.50%
94.50%
-
-
-
94.02%
91.25%
91.49%
96.07%
-
Visit Cosmobet Slide to compare

If you look through the slides, you can tell that Cosmobet ranks among the top casinos in our review. You've got a few other great options, however we feel happy Cosmobet is a solid casino if what you want is a better chance of winning.

While playing slots the assigned RTP is the key element that makes the biggest difference on your chances of winning.

If you're trying to find opportunities to increase your chances of winning when gambling online choosing a casino with high return-to-player can make a difference. Cosmobet is among the best we’ve tested, and there are more great options in our list of the best casinos online.

How Much Higher is Your Chance of Winning?

The majority of popular slots come in a handful of RTP versions. Take this as an example, a version of Gates of Olympus has 96.50% RTP but another one offering 94.50% RTP.

The games appear exactly the same yet they pay out differently on average.

Every casino can choose if they want to go with a version where players win more instead of a version of the slot with worse RTP.

Some online casinos choose the high-rtp version to make it easier for players to win so they'll continue playing.

However, a lot of casinos offer the worse versions because they hope you'll lose as much and as fast as possible.

If you're trying to win while gambling on onlines slots make sure you play at one of the online casinos listed as "High Chance of Winning" in our toplists. Picking the right online casino to gamble on slots can make a big difference on how much you win!

2.8
Average

#5 out of 144 online casinos

Our team’s review of 144 online casinos covers customer service responsiveness, welcome bonus value, and the range of games on offer. Below you’ll find our test results and where Cosmobet landed in every category.

What is the Theoretical Bonus Value of a $100 First Deposit (TBV100)?

Winner: Art Casino, TBV100: $103.26

In 101st place: Cosmobet Casino, TBV100 -$63.51

Average Bonus Value of $100 first deposit: -$183.73

How Reliable is the Customer Support?

Winner: iWild Casino, 63

In 12th place: Cosmobet Casino, 40

Average casino support score: 40.96

How Many Different Casino Games are Available?

Winner: JB Casino: (5480 games)

In 75th place: Cosmobet Casino (7016 games)

Average number of games available at online casinos: 7067 games

How Fast is the Online Casino Gaming Experience?

Winner: Galactic Wins Casino (0.73 seconds)

In 17th place: Cosmobet Casino (2.17 seconds)

Average page load speed of online casinos: 4.08 seconds

Cosmobet Casino Welcome Bonus

- Bonus: 200% match bonus + 70 freespins

- Minimum Bonus: 0

- Maximum Bonus: $748.5

- Wagering Requirements: 30x playthrough requirement

- Free Spins Slot: Rich Wilde and the Book of Dead

- Value per spin: $0.2

- Free Spins Wagering Requirements: 30x playthrough requirement

- Theoretical Bonus Value (TBV): -$63.51

- Welcome Bonus Ranking: Cosmobet Casino Casino's welcome bonus ranked 101st in our online casino welcome bonus test.

Visit Cosmobet Casino

Cosmobet - Bonus, Promos, and Free Spins

1 out of 5 stars

We checked first deposit offers across online casinos to highlight the best value option.

The TBV formula measures the average payoff on first deposits after wagering is met, from the minimum to the maximum deposit you can make.

Here’s how Cosmobet stacked up.

Unfortunately, Cosmobet’s $100 first-deposit welcome bonus makes you risk far beyond your deposit, resulting in a negative Theoretical Bonus Value (TBV). The welcome bonus at Cosmobet came to -$63.51 in our test.

  • JB Casino: After testing max bonuses, they were our clear winner for value.
  • Art Casino: If your first deposit is $100, they were our highest-rated site for welcome bonus value.
Visit Cosmobet Casino

No, unfortunately, Cosmobet Casino did not offer a no deposit bonus as of our test.

No, Cosmobet Casino does not require a bonus code to receive the first deposit bonus.

Cosmobet – Live Chat and Email Customer Support

3 out of 5 stars

Good customer service is crucial for online casino players, yet it’s commonly overlooked. You should feel confident the casino will respond fast and keep you supported. Still, judging customer support at 144 different sites can be hard.

We test and rank every casino on support quality to give you peace of mind before you bet.

Visit Cosmobet Casino

Cosmobet Casino Casinos customer service email is [email protected].

Cosmobet Casino Casino did not have an active phone number for customer support.

Cosmobet - Slots and Other Casino Games

3 out of 5 stars

People who play online usually want a mix of games—repeating one slot gets boring. It’s tough for players to try every casino’s game lineup to figure out which one is best.

We evaluated Cosmobet on game count and variety, looking at sports betting, live dealer tables, slots, blackjack, and roulette.

Keep reading to view Cosmobet’s game library results.

How large and diverse is Cosmobet casino’s game library?

Cosmobet delivers a big, well-rounded library of casino games. Their selection includes crowd-pleasers like: live casino, odds, livebetting, fantasy sports and horses.

The size and diversity of its lineup placed Cosmobet 75th out of 144 overall.

In our review of game selection, Cosmobet ranked below average. Cosmobet's library size was 7,016, and its available game types were well below many of the other casinos we tested.

If a diverse lineup is what you want, try another casino instead.

Visit Cosmobet Casino

Cosmobet - Website Speed and UX

4 out of 5 stars

Long load times are the last thing you want during online play. Most folks don’t have an easy way to compare casino website speeds. We recorded load speeds at each casino and ranked the sites so you know which ones are sluggish.

How Fast is Cosmobet?

We recorded Cosmobet at 2.2 seconds, placing it in the top tier for load time. We ranked it 17th out of 144, with load times 1.8 seconds faster than average.

Top-25% performance suggests Cosmobet won’t noticeably impact your gameplay.

Visit Cosmobet Casino

Cosmobet - All Test Results

Compilation of all casino tests and calculations for rankings.

Bonus and Promotions Test.

Our bonus tests covered everything from no-deposit offers to first-deposit matches at every site. We based our first deposit bonus checks on $100, since max eligible deposits vary from casino to casino.

Our calculation, TBV, uses a tailored set of metrics and wagering requirements depending on the bonus. The TBV100, for example, looks at the value of a bonus if we deposit $100 while the TBVMAX measures the bonus using the maximum allowable deposit for that bonus.

These are the bonus and promotion results for Cosmobet.

Cosmobet has no No Deposit Bonus available for newcomers.

  • First Deposit Bonus Type: Match + Freespins
  • Minimum Deposit Amount:
  • Theoretical Bonus Value for a $100 First Deposit: -$63.51
  • TBV100 First Deposit Rank: 101st out of 144
  • TBV100 First Deposit Stars: 2 out of 5 stars
  • Number of Bonus Spins: 70
  • Max RTP of Bonus Spins: 96.21 %
  • Wagering Requirement of Bonus Spins: 30 x
  • Theoretical Value of Bonus Spins (TBVBS): $4.26

We added up Cosmobet’s no deposit bonus, the $100 first deposit bonus, and any free spins to show the full value of Cosmobet’s welcome offer.

When we tested most recently, Cosmobet did not offer a welcome bonus.

Customer Support Test

We confirmed the availability of email, phone, and live chat and measured how long agents are active. We converted our support checks into rankings so you can gauge each casino against alternatives.

Below is how Cosmobet scored in our customer service test and where it placed overall among online casinos.

  • Cosmobet did not have an active phone number for customer support.
  • Live Chat Support: 168 hours a week
  • Email Support: [email protected]

Our methodology for Cosmobet weighed support options (phone, email, live chat) and their coverage hours.

  • Customer Support Rank: 12th out of 144
  • Customer Support Stars: 3 out of 5 stars

Game selection Test

Our analysis counted how many games were available and which categories appeared at each casino—slots, poker, roulette, live betting, etc.

Combining how many games a site offers with the spread of types lets us decide which online casino has the best game selection.

Here’s where Cosmobet landed in game selection and how it compares to all the other online casinos we tested.

  • Total Number of Casino Games: 7,016
  • Total Number of Game Types: 5 - live casino, odds, livebetting, fantasy sports and horses
  • Casino Game Selection Ranking: 75th out of 144
  • Casino Game Selection Stars: 3 out of 5 stars

Online Casino Speed Test

We measured page speed by timing several important pages at each site and averaging them.

Averaging pages like the homepage and customer support page gives a good idea of how quickly Cosmobet is overall.

By taking the average load time of the homepage, slots, and promotions pages, we see how responsive Cosmobet is.

  • Average Load Time: 2.17 seconds
  • Online Casino Speed Ranking: 17th out of 144
  • Online Casino Speed Stars: 4 out of 5 stars

Online Casino Total Ranking Test

Our composite ranking for Cosmobet is driven by scores and star ratings from all individual tests.

Below is an overview of Cosmobet’s overall results versus every other online casino we tested. By compiling Cosmobet’s scores, we can judge it against the rest to see who’s best overall.

  • Bonus and Promotions: 1 out of 144
  • Customer Support: 12th out of 144
  • Game Selection: 75th out of 144
  • Casino Speed: 17th out of 144
  • Ranking compared to other online casinos: 5th out of 144

Stars based on Cosmobet’s test results:

  • Bonus and Promotions: 1 out of 5 stars
  • Customer Support: 3 out of 5 stars
  • Game Selection: 3 out of 5 stars
  • Casino Speed: 4 out of 5 stars
  • Average: 2.8 out of 5 stars

We build Cosmobet’s overall rank from points and stars, giving each equal weight. If two casinos end up tied, points determine which one takes the lead.

Cosmobet’s total ranking is 5th out of 144 online casinos that we have tested so far.

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