Jannete, a skilled Casino Analyst at Casino Guru, dedicates her time to sourcing and gathering the latest information about online casinos. Her primary task is continuously updating our casino database, guaranteeing the inclusion of precise and reliable data for our users. In her university years, J...
OverviewSafety and fairnessGamesBonusesPaymentsCustomer supportUser reviewsDiscussion
Jannete H.
Author
Jannete Hills
Casino Analyst
Jannete, a skilled Casino Analyst at Casino Guru, dedicates her time to sourcing and gathering the latest information about online casinos. Her primary task is continuously updating our casino database, guaranteeing the inclusion of precise and reliable data for our users. In her university years, J...
In this review, we took a close look at Mr. O Casino. Our casino review process helped us check both its benefits and its drawbacks. Our team looked into things like the casino's Terms and Conditions, licenses, player complaints, support, and limits. This helped them form a clear view of how safe and fair this casino is for players.
Our evaluation has led to the casino's Safety Index, a numerical and verbal representation of our findings regarding safety and fairness of online casinos. With a higher Safety Index, your chances of playing and receiving winnings without complications increase. With a Below average Safety Index of 6.0, Mr. O Casino may not be the best pick for most players. It scores below what we look for in fairness and safety. Our full Mr. O Casino review offers details that can help you decide whether this casino is right for you.
Safety Index – Mr. O Casino fairness and safety
In determining a casino's Safety Index, we follow complex methodology that takes into account the variables we have gathered and evaluated in our review. This includes the casino's T&Cs, player complaints, estimated revenues, blacklists, and various other factors.
In our review of Mr. O Casino, we thoroughly read and reviewed the Terms and Conditions of Mr. O Casino. We noticed some rules or clauses, which were unfair, thus, we consider the T&Cs to be somewhat unfair. Unfair or predatory rules could potentially be leveraged to deny the players their rightful winnings. Thus, taking our findings into account, if you do decide to play at this casino, we urge you to proceed with caution .
Considering our estimates and the factual data we have collected, Mr. O Casino appears to be a large online casino. This casino has an average value of denied payouts in player complaints with respect to its size. When evaluating a casino, we consider the number of complaints in relation to the casino's size, since bigger casinos generally receive a higher number of complaints due to a larger player base.
We did not find Mr. O Casino on any relevant casino blacklists. The presence of a casino on various blacklists, including our own Casino Guru blacklist, is a potential sign of wrongdoing towards customers. Players are encouraged to consider this information when deciding where to play.
All in all, when combined with other factors that come into play in our review, Mr. O Casino has landed a Below average Safety Index of 6.0. In our expert opinion, this is not a good choice for those who look for an online casino that prioritizes fair treatment and safety of its customers.
Note: To the best of our knowledge, Mr. O Casino is associated with 2 other online casinos. Since we are aware of the connection between these casinos, we have considered the attributes of the linked casinos when calculating the Safety Index of Mr. O Casino.
Reviewing the T&Cs of Mr. O Casino
Whenever we review online casinos, we carefully read each casino's Terms and Conditions and evaluate their fairness. It's not uncommon to find clauses and rules in the Terms and Conditions of some casinos that we deem unfair or predatory, since they provide the casino with grounds to withhold player winnings under specific circumstances.
We found some questionable rules or clauses during our review, because of which we consider the Terms and Conditions of Mr. O Casino to be somewhat unfair.
Note: You can see our specific T&Cs findings in detail here.
Player complaints related to Mr. O Casino
Player complaints play an important part in our casino review methodology, as they give us a clear insight into issues experienced by players and casinos’ way of handling them. We take into account all complaints filed via our Complaint Resolution Center in addition to those we compile from other sources when examining each casino's safety and fairness.
We currently have 2 complaints directly about this casino in our database, as well as 1 complaints about other casinos related to it. Because of these complaints, we've given this casino 5,353 black points in total, out of which 900 come from related casinos. You can find more information about all of the complaints and black points in the 'Safety Index explained' part of this review.
User feedback and assessment of Mr. O Casino
At Casino Guru, users have the opportunity to provide ratings and reviews of online casinos in order to share their opinions, feedback, or experiences. Based on these, we then generate a complete user satisfaction score, which varies from Terrible to Excellent.
Our database has a total of 21 user reviews of Mr. O Casino, giving it a Good User feedback rating. You may access the casino's user reviews in the User reviews section of this page.
Note: Since it is not uncommon that upset players leave many harmful reviews to damage casino's reputation, and some casinos post false reviews to increase their user feedback score, please note that user reviews may not accurately represent the casino's quality. We strive to filter these out and calculate an accurate user feedback score; however, for these reasons, we do not consider user feedback in our Safety Index calculation.
Mr. O Casino company information and licenses
Mr. O Casino belongs to Geolen Tech Ltd. and has estimated yearly revenues over $20,000,000. Based on the revenues, we consider it to be a large online casino.
To the best of our knowledge, Mr. O Casino has not been granted a license by any gambling regulatory authority.
About payment methods and win and withdrawal limits
Mr. O Casino accepts 13 payment options. This includes: Mastercard, VISA, Bitcoin (BTC), ApplePay, Bitcoin Cash (BCH), Ethereum (ETH), Tether (USDT), Binance Coin (BNB), Litecoin (LTC), Tron (TRX), Solana (SOL), Dogecoin (DOGE), Google Pay.
Many online gambling sites place restrictions on the maximum winnings and withdrawal amounts for players. Oftentimes, the win and withdrawal limits are high enough as to not impact most players. That being said, there are casinos, which pose quite restrictive limitations on the win and withdrawal amounts. This is the reason why we consider these limitations in our casino reviews. You can find information about the casino's win and withdrawal limits in the table below.
Withdrawal limits
Win limits
EUR 4,000 per week
No win limit
USD 4,000 per week
Note: Certain payment methods available to players may not be available for making both deposits and withdrawals. Also, some methods may only be available in selected countries.
Language and support options
In our casino reviews, we always collect data about available languages and customer support options. The table below lists the language options at Mr. O Casino.
Language
Website
Customer support
Live chat
English
24/7
Testing the customer support team is part of every review we carry out. We contact them to check how fast, helpful, and professional they are. Good customer support can make all the difference when things go wrong. It's there to help you sort out problems with your account, withdrawals, or anything else that might occur along the way. Mr. O Casino has a good customer support, judging by the results of our testing.
Casino games and slots available at Mr. O Casino
You can play these types of games at Mr. O Casino: Slots, Roulette, Blackjack, Video poker, Baccarat, Jackpot games, Keno, Other card games, Crash games, Other games.
Titles supplied by 2 casino game providers are available. This includes Realtime Gaming, SpinLogic Gaming.
Mr. O Casino bonuses and promo codes
Online casinos provide incentives in the form of bonuses to encourage both new and current players to register an account and keep playing. No deposit bonuses and deposit bonuses are the most common categories. While deposit bonuses are only given out once a player makes a deposit, no deposit bonuses or free spins are given to players without requiring them to do so. Nevertheless, other bonus codes, welcome sign-up bonuses, and loyalty programs are also among the promotions offered by casinos.
As of right now, our database holds 6 bonuses from Mr. O Casino, including:
130 FREE SPINS on Mega Monster
$100 NO DEPOSIT BONUS
$210 NO DEPOSIT BONUS
400% up to $10,000 and 400 extra spins
100% up to $200
150% up to $500
Please note that some deals could only be available to players from particular regions. To learn more and see which bonuses are available to you, take a look at the 'Bonuses' part of this review.
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Company info
Owner
Geolen Tech Ltd.
Established
2023
Estimated annual revenues
> $20,000,000
Safety and fairness
Safety and fairness
Take a look at the explanation of factors that we consider when calculating the Safety Index rating of Mr. O Casino. The Safety Index is the main metric we use to describe the trustworthiness, fairness, and quality of all online casinos in our database.
We go over the terms and conditions of each casino and look for unfair rules that could potentially be used against players. Any clauses we consider to be unfair result in a lower Safety Index for the casino.
Casino size
Big casinoBig group
Bigger casinos are generally safer for players, because their high revenues allow them to pay out even very big wins without any issues and their quality has been proven by a large number of players. We take into account estimated revenues over the last 4 years and also consider revenues of related casinos.
Player complaints signify that the casino does not treat players right or deal with certain situations correctly. We consider the number and seriousness of complaints in relation to the casino’s size, as it can be expected that sites with more players will also have more complaints.
Blacklists
None
0x
If a casino appears on relevant blacklists, it is usually a sign that it has some negative qualities. We consider each blacklist and decrease the casino’s Safety Index based on our view of the situation and its seriousness.
Other factors
Slightly negative
Operates without a license
There can also be other characteristics and qualities of a casino that influence its Safety Index, such as win limits, low withdrawal limits, fake games or licenses, bad or no customer support, a network of land-based shops, etc.
Licensing authorities
No license
Important
Important:
Casino operates without a license
This casino operates without a license. As a result, the casino does not have to follow rules set by licensing authorities. Additionally, you will not be able to turn to any licensing authority if you run into issues.
Unfair terms and conditions
Players claiming one too many bonuses risk losing their winnings
Show full rule and our analysis
Playing restricted games while wagering bonuses may forfeit bonus balances
Show full rule and our analysis
Bonus policy and related restrictions may apply even after meeting bonus wagering requirements
Show full rule and our analysis
Bonus-related restriction that should be technologically enforced
Explore the game selection available at Mr. O Casino. Find out what types of games are available, which game providers are supported, and which are the most popular titles available at the casino.
Game types
Games
Live games
Slots
Roulette
Blackjack
Betting
Video poker
Bingo
Baccarat
Jackpot games
Live games
Poker
Craps and dice
Keno
Scratch cards
eSports betting
Crash games
Available: 8
Not Available: 7
Live shows
Live baccarat
Live bingo
Live blackjack
Live dice games
Other live games
Live poker
Live roulette
Available: 0
Not Available: 8
Most popular games
Bubble Bubble 2
by Realtime Gaming
Cash Bandits 2
by Realtime Gaming
Texan Tycoon
by Realtime Gaming
Coyote Cash
by Realtime Gaming
Goldbeard
by Realtime Gaming
Lucha Libre 2
by Realtime Gaming
Triple Twister
by Realtime Gaming
Panda Magic
by Realtime Gaming
Enchanted Garden
by Realtime Gaming
Bubble Bubble
by Realtime Gaming
Dragon Orb
by Realtime Gaming
Secret Jungle
by Realtime Gaming
Game providers
Casino Bonuses
Mr. O Casino bonuses
Browse all bonuses offered by Mr. O Casino, including their no deposit bonus offers and first deposit welcome bonuses.
Casino Guru
We want players to understand gambling.
Payment methods
Payments
Browse an overview of payment methods supported by Mr. O Casino, along with related limits and fees associated with transactions to or from your casino account.
Payment methods
Show all
(13)
Payment methods (13)
Transaction limits
Withdrawal limits
$4,000
per week
Win limits
Unknown
Currencies
Traditional
Supported Fiat currencies.
USD
Customer support
Customer support
Curious about the customer support options available at the casino? Explore the language options and support types, as well as the results of our customer support testing.
Language options
Website
Available in
1 language
English
All languages (1)
English
Live chat
Available in
1 language
English
All languages (1)
English
Customer support:
Available in
1 language
English
All languages (1)
English
Live chat rating
Good
Based on 4 tests
Date and tester
Rating
14 May 2025
Attila G.
Subpar
29 Nov 2024
Jana K.
Good
14 Feb 2024
Katarina D.
Good
10 Nov 2023
Lilo S.
Good
User reviews
User reviews of Mr. O Casino
This is a place to share experience with Mr. O Casino. Read what other players wrote about it or write your own review and let everyone know about its positive and negative qualities based on your personal experience.
User feedback:
Good
Rated by 21 users
Very positivePositiveNeutralNegativeVery negative
Do you have any experience with this casino?
Write a review
Casino Guru
We want players to understand gambling.
• 1 year ago
Mr.O & Eternal Slots casino better be ready to answer to the Feds about how you been snaking Crypto from Americans like vagabond thieves online orchestrating pyramid schemes. This casino is total BS all the addresses match we have a recorded video surveillance generating the wallet address you provided. You received funds from the account and stole them. U change all the crypto addresses on every deposit so they cant be traced. U guys are sum sick twisted demons I'll have you know that by this afternoon Im calling ICE Homeland Security regarding your organized crime ward. This address comes from your website
bc1qsatlphjcgvzlt9xhsgn0dnjus5jgwg83dr05c6
U wont have social media fir long when Im done letting the United States federal Goverment know about your exploits. You handle these accounts without any statement or data audit to distribute to players and for that we will proceed to have you ownership investigated.
Very Clever Cyber Spys that manipulate the game wig bugs as you play...
They will hack your chat access if you complain about them stealing your Crypto transfers.
• 1 year ago
I have had great luck here. In just half a day, 100 USD became more than 8000 USD. I couldn't withdraw the full amount due to withdrawal restrictions, but it's a great achievement. Maybe it's a good impression because I won big, but I'll still play here. In terms of withdrawal speed alone, I can recommend playing here.
Fast withdrawals
Fast kyc
Limit the amount of withdrawals in a short period of time
• 1 year ago
This place is one of the worst experience I ever had. They will make u go Tru loops verifications days past by and never pay you. They refused my withdrawal because my wife has a account on there too. Didn't try to investigate. Didn't warn. They just plainly took the money and deleted my account I wouldn't suggest anymore to play here
Bitcoin withdraw only. Slow response. Steals ur winning
• 1 year ago
Mro Casino is literally my favorite online casino for so many reason they always offer best bonuses and free chips I cashed out so many times and it only takes few minutes for money to arrive to you they actually have instant withdrawal I’d recommend to anyone who’s actually interested in good casino
Fast withdrawal
Free chips
Free spins
Night payouts
None
• 1 year ago
asides from a bit of a rough verification time i was paid out my winnings of 1700 in btc was VERY stoked
the casino has an amazing welcome offer
24/7 live support are very helpful
multiple payment methods
fast withdrawals
quiet slow verification..took like 8 days
not the greatest selection of games
• 1 year ago
The customer service at MRo is too notch. Trust me I annoy those guys over there no matter what shift is working and they still treat me like family who owes them money 😂 I do feel bad especially for Zack (one of the reps) I some how get him every time and he still treats my like family and process my request fast. Thank you
Fast withdrawals
Amazing service
Fairness
Bonuses
Nothing
• 2 years ago
Not only are they ever eligible to be withdrawn, but you actually need to pay them back before you withdraw a cent. they worse than nothing, they're a handcuff. i asked half a dozen times about if i'm missing any fine print and everytime their support pasted the stipulations of the bonus, never once did it mention this until i tried to withdraw some money and apparently I owe them lol. F these guys.
NONE OF THE BONUSES ARE REAL
Mr. O Casino
Hello there, Thermo9000!
Please note that we've reviewed your situation regarding the denied Withdrawal request, and noticed that the Bonus Amount recieved from the Match Bonus you've used has not been removed prior to Withdrawal request.
This term is explained in our official Terms&Conditions page on our site - https://mrocasino.com/terms 6.2. Withdrawing Funds After Using a Bonus (b) Upon requesting a withdrawal, irrespective of the number of deposits made, the initial bonus amount will be deducted from your balance or winnings.
Kind regards, MrO Team
• 2 years ago
wORST EXPERIENCE EVER. DO NOT PLAY WITH THESE SCAM ARTISTS! STRAIGHT U ROBBED ME AND THEN MADE UP THE MOST REDICULOUS REASONS. INCLUDING SAYING I CREATED 160 ACCOUNTS. I DONT EVEN KNOW WHERE TO START WITH THAT. WHEN ASKED FOR ACTUAL PROOF OF BREAKING ANY RULES THEY JUST IGNORED ME REPEATEDLY AND WHEN I OPENED A COMPLAINT ON CASINO GURU, THEY RESPONDED WITH THEIR GENERIC QUOTING OF THEIR POLICIES BUT NEVER SHOWED ANY PROOF..I WASTED SO MUCH TIME WITH THESE SCAM ARTISTS ITS NOT EVEN FUNNY. WORST ONLINE EXPERIENCE EVER. EVEN WORSE THAN SUN PALACE. NEVER USE MR O. IT IS SCAM CITY. I guarantee all these positive reviews are FAKE. Skip to page 2 of the reviews and you'll see they did the exact same thing to someone else spouting off about ip adresses and multiple accounts. SCAM city
• 2 years ago
great experience! I usually do not care for bonus but took advantage of 400%. deposited 15 and had 75 to play with. playthrough was 3002. made playthrough and cashed out 790. chat was quick, no copy paste answers, and cust serv on point. highly recommend
instant cash out
cust serv
great bonuses
• 2 years ago
Mr o casino They won't pay out for new players welcome spins they will come up with a poor excuse you use somebody sister or somebody use your system and you cheated. They will not pay you hundred dollars if you happen to win just let me know. They talked computer jargon as if we shared devices or cheated to win a simple 100 💯 I sent them the location and device info of when and where they were played of course they were not interested…. I’m all set with this platform they did this to my husband because wised my phone yo request his withdrawal they expect you won’t make the playthrough and he did that’s TERRIBLE
THEY DONT PAYPIT IN THE WELCOME SPINS
• 2 years ago
By far best online casino. As a software engineer / web developer, I have to say they have the most appealing and best functioning website. Also, they pay out instantly. Won $6500 the other day and received the money instantaneously upon approval
Instant payout
Site is well built
Great support
• 2 years ago
I received some free play, happened to win and was able to cash out the maximum amount which was $50. The entire verification and receiving of the withdrawal took about 1 hour. I just started playing at this casino couple of months ago and I've only made one small deposit but received no grief over making more deposits or anything at all! They simply paid out as they agreed to do.
Fast withdrawal and verification process
Fun games
• 2 years ago
Got a free spin bonus won 50$ submitted my doc was approved in minutes had the $$ also note there sister casino is awesome too eternal casino love it too there's no history here to leave a rating
Great casino instant cashouts
• 2 years ago
I am not new to the rules of online casinos and I know I can't have more than. 1 account Frankly, it would be a waste 0f my time to play because I know I wouldn't be able to cash out if I won anything. Anyhow I made 1 account here and played only 1 welcome free bonus and I won. I turned in my documents to get verified and I get unfairly accused by the casino who said I made several accounts. They accused me of the without showing me the proof of their findings. And took my winnings away.
It is so unfair to be lied about by a casino and accused of something all because they don't want to pay out .
Please show me the proof then I will shut up but the facts are they haven't any proof because they are lying. Why waste people's time who come to play at your casino ?? You are going to get blacklisted and hopefully go out of business treating people this way. Wait and see folks.
• 2 years ago
Great instant withdrawal RTG casino, and for once it's not associated with the other RTG instant withdrawal casinos, a not affected by the petty management employed there. They have cashed out for me without any difficulty and my deposits are always swiftly in my account. Games behave typical of RTG software and give this Casino my utmost trust. If you're looking for a honourable and decent Casino that you can trust, managed by professionals that behave in such a manner, deposit here.
Instant withdrawal
Integrity
Unique RTG site
Great Support
Crypto deposit instantly
Needs balance to show in withdrawal page
• 2 years ago
I received the 50 free spins, I played that out and I ended up winning approximately $14 so then I left and came back to the game with the money that I had won and I bet for about an hour and I reached a total of almost $900 they let me play all the way back down to 600 and then all the money just disappeared and they're telling me that you can only $150 on the free spins but two days prior to that I was at $150 off of free spins and the guy from the live agent said that I had to match a wager of 198 so how could you possibly only be able to make $50 on it if the live agent was telling me that I had to reach a certain amount to claim it and they won't do any modification they won't do any adjusting nothing they're just telling me excuse after excuse after excuse making up rules what a joke and they're telling you that you can only use the free 50 spins for a total of five consecutive times okay well they said that I used it seven times that's because they send them to me in an email what I'm not supposed to win with the 350 spins I'm not supposed to use it when you send it to me what sense does that make this place is a f****** joke I'm not done here they're going to get they're going to get some s***** reviews because that's bull crap
• 2 years ago
I started with the free spins that were given by Mr o casino.
I made it through play through and I was able to cash out almost $100 😊
Verification was easy, quick and they didn't play games like a lot of casinos these days.
They're very generous with free bonus spins often,
Ive deposited since, have not won through depositing, but I must say... when I have deposited, the money wasn't all gone in 10 minutes☺️
it was nice to be able to play for a while even if I didn't win with a deposit.
I'm sure a lot of online casino players would appreciate playing here, considering all the positives of Mr o casino...
Live chat with super kind, if you're an avid player as I am, we all know that dreaded feeling about talking to live chat... But I didn't experience anything negative 😁
very kind and helpful customer service 👍
😻👍
Paid out quickly, with almost no hassle of games with verifications
Seems to be fair even when depositing
Nothing I can think of
• 2 years ago
I have been playing here since this casino opened online. The first day I played I won $50 on a free Spin bonus after my initial deposit. It was paid immediately after I verified which was fast. However I have since deposited several times and played many many free Spin bonus coupons and have yet to win a dime. I noticed as soon as I get close to my playthrough the games stop paying anything. I find it highly suspicious but I will try one more time just to confirm my believe that this website may be rigged
Tight slots
• 2 years ago
Good casino. After verification (standard, they did not ask anything out of the ordinary, which is good). They paid me really fast after this. I could recommend this casino to everyone. Good games too if you like RTG slots, which are a pretty classic provider.
RTG Slots
Fast Payouts
• 2 years ago
Finally!!!! A great experience with an online casino. Customer service is prompt. Requested a payout and after verifying my account (24 hours) my payout was processed immediately. Very grateful and thankful to have finally found a legitimate and honest online casino.
Prompt customer servixe
Super fast pay outs
Account verification done within 24 hours
Just make sure you request your full balance when withdrawing your winnings
• 2 years ago
So the website has offers with details that they won't honor. For instance the coupon said 100 spins and 100% bonus weekdays. After entering chat I was told the person must have been drunk. Next i deposited and was to get 400 spins through the course of a week. However I had to argue and beg for my spins daily . May I also add there have been zero wins throughout the entire time if depositing and playing. It's so very difficult to accrue comp points.
Easy and fast verification
Discussion
Mr. O Casino discussion
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