The Bitcoin Blackjack ♦️ Bitjack | Try the Beta

[roynx98]

Win Bitcoins playing online Blackjack https://playbitjack.com/

Now I'm releasing the beta, I posted the full game but It was not ready, my apologies   
In the beta version you can not deposit any money and the max bet is 10 bits, the only way to get funds is with the promo codes
so if you want to try the game, ask me for a promo code on my

Twitter: https://twitter.com/Mitosys3
or
Email: roynx98@gmail.com

You will be able to withdraw your money immediately

Key Features
* No registration
When you click 'New game', you can play immediately, you will be redirected to a play URL,
that URL is like your password so please save it in a safe place,
whatever person with that URL could play with your money.

* Promo codes
Bitjack supports promo codes, when they are used you will receive free Bitcoins to your account immediately.
You can withdraw the money any time  

[michellee]

I was visiting your website and tried to apply the code but it seems the code is not valid so I did not expect success.



It is my first time to see a gambling site like your website because we do not have to register and only need to save the URL. It is so simple and does not take long to start playing. I can not try playing the game since I can not use the code so I think I will wait for the next code that you will share

[Juggy777]

I was visiting your website and tried to apply the code but it seems the code is not valid so I did not expect success.



It is my first time to see a gambling site like your website because we do not have to register and only need to save the URL. It is so simple and does not take long to start playing. I can not try playing the game since I can not use the code so I think I will wait for the next code that you will share

@michellee you’re right the promo code no longer works, and I’m not sure if users will like playing without being registered, because keeping hold of the link maybe difficult hence there should be a registration page, and a stats page. Also i feel that people should not wager big amounts till the op earns some good trust here, because it’s a new site and depositing big amounts in a new site is always risky.

[Stedsm]

So the code doesn't work at all and I believe that either it was for limited accounts or was it for a single person and you'll be giving us more promo codes each in order to try out the website? BTW, what's the bankroll of the website if you don't mind sharing it? And I'm totally fine with creating an account at your website because we don't have those satoshidice kinda websites anymore where we need to store our URL to play ahead. I fear of losing the URL as well as my funds too, so please make signing up available on your website.

[YOSHIE]

I saw the Bitjack gambling site as stated by the OP, although it was suspicious, but I can't be sure if the Bitjack site is a scam or not, what is clear is that all of this is confusing.

When I visited the Bitjack site, what I got was as below.



Everything is empty, I don't know where else to go, the site stands like a trance, without moving, I hope someone can confirm the Bitjack site about its reputation here.

It looks empty and not moving because you do not have money in your account to play.

ha, ha, uh, uh, I thought someone would answer like that, no deposit the table doesn't move, like a trance, right.

How about you, do you want to make a deposit to the Bitjack site, without complete security, such as registration, email, password, verification etc.
Honestly, i had to think twice, to do it, oh, yes, thanks for answering.

[panjul07]

Everything is empty, I don't know where else to go, the site stands like a trance, without moving, I hope someone can confirm the Bitjack site about its reputation here.

It looks empty and not moving because you do not have money in your account to play.
The same you may see in most blackjack game, you will see nothing except the blackjack board/table and you'll see the cards once you place a bet.
Regarding reputation, it is still new site (at least in this forum) so no one will be able to confirm unless there is someone who have tried it by making deposit and withdraw.

[panjul07]

I saw the Bitjack gambling site as stated by the OP, although it was suspicious, but I can't be sure if the Bitjack site is a scam or not, what is clear is that all of this is confusing.

Probably a different approach to gamble, this is my first time to see gambling site without doing any registration and yes its confusing.
It's too early to say that this is a scam, maybe someone can share their experience with this new site but for me I'll wait for more details since its too risky to try a new site with a different system.

It looks empty and not moving because you do not have money in your account to play.

Some are moving even if you don't have money on your account, this one is totally different.

I understand that you get confused because it is your first time to see gambling with no registration needed.
It was something popular in the past and there are some on-chain gambling site like this where you can play without an account (registration).
For me, it is not that confusing as I have experiences in some on chain gambling site in the past such as luckybit, directbet, and bitcoinvideocasino.
The last one I mentioned might be the most similar one with this new site, because you need to save your private url before making deposit or when you want to play once you have made the deposit.
What makes this site is a bit different with the other on chain gambling site is the design, this one is so plain and may make new users with no experiences in similar type of gambling get confused.

[tulusikhlas]

It's the first time I've found a casino without registering, what I'm afraid of is what if the balance inside which has a large enough portfolio in and out of the casino and of course the way to access it is by entering each code? isn't that too dangerous for the user. The simple registration process at a minimum includes registration using an email and password. In any casino it becomes the minimum standard of registration that must be done. In order to distinguish one user from another. One more thing the promo code is not valid, almost 20 times I repeatedly the code is still invalid.

[roynx98]

I was visiting your website and tried to apply the code but it seems the code is not valid so I did not expect success.

https://i.imgur.com/7sO7dpy.jpg

It is my first time to see a gambling site like your website because we do not have to register and only need to save the URL. It is so simple and does not take long to start playing. I can not try playing the game since I can not use the code so I think I will wait for the next code that you will share

Sorry that code was already used and It can be only used once, I'll share new a ones as son a I fix some vulnerabilities, a few hours back somebody did bets that were too big. The house has lost all its money  

[roynx98]

So the code doesn't work at all and I believe that either it was for limited accounts or was it for a single person and you'll be giving us more promo codes each in order to try out the website? BTW, what's the bankroll of the website if you don't mind sharing it? And I'm totally fine with creating an account at your website because we don't have those satoshidice kinda websites anymore where we need to store our URL to play ahead. I fear of losing the URL as well as my funds too, so please make signing up available on your website.

Yes it's a code for a single person, The bankroll was around 3000 bits, I've lost most of it  , there is a vulnerability, the max bet is just 100 bits, but the people hacked it to bet more.
The account can be a nice addition maybe the two options can live together. thanks for you feedback  

[Stedsm]

Yes it's a code for a single person, The bankroll was around 3000 bits, I've lost most of it  , there is a vulnerability, the max bet is just 100 bits, but the people hacked it to bet more.
The account can be a nice addition maybe the two options can live together. thanks for you feedback  

Are you freakin' kidding us?
You should have mentioned that it's a one-time-only usable code and can be redeemed by one person only. However, after knowing your bankroll, I now know the reputation of your website and I'd suggest you to prepare it with a much bigger bankroll before you start to promote it as 3000 bits and a max bet of 100 bits is nothing and a gambler can win that much in a single bet if you increase the max bet to 3k bits itself.

[Sterbens]

A joke gives a promo code but everyone is asking why the code can't be used? is this a limit? if yes then who has used them all. Or indeed the code is no longer valid. I tried to update the network because I thought the problem was with the internet network, but after that everyone said the same problem means the error is in the promo code.

I don't really care, maybe I still have questions about registering without having to register to enter a user name, just need to bookmark the url. Quite unique but, also quite vulnerable to loss.

[nakamura12]

Welcome to bitcointalk forum. It seems this will be your ann thread right?. I was hoping you could answer about the thread title you used. Why is it please do not play for the moment?. Why launched it if you won't let people play or check the site yet. I think it's better if you launch it when it is complete or done developing the site.

[NotATether]

This is your periodic reminder to never launch with a max bet that is not small enough compared to your bankrolll.

Your max bet should be many, many times smaller than your bankroll.

E.g. Let's suppose I have a bankroll of $1000 (I know it's a terribly low amount, but this is what some people have to work with).

If I make the max bet $50, then people can bet 20 times (and win all of them to finish it up.

Alternatively, if I make the max bet $20, people have to bet 50 times simultaneously.

Now let's suppose you have some probably fair game with 49% chance of winning - obviously most games have even lower probabilities than this, further reducing the chances of bankroll depletion - so that there's 1% house edge. So for those $20 bets, you will win on average 24 of them and lose the other 26.

26*$20 = +$520 that goes back to the bankroll. 24*$20 results in -$480 taken away from it (this amount includes the 1% house edge the owners [you] take as profit). That means your bankroll increased by $40.

Also, .49²⁵ (this is 24+1, the minimum number of wins out of 50 necessary to report a net bankroll loss) is 0.00000001798465. In other words. 3.67e^-8 i.e eight zeros after the decimal, or a 0.0000001798% chance that people will win more than they lose and send your bankroll down a spiral.

To put that into perspective, this will only happen every 55,602,972 * 50 = 2,780,148,626 bets: almost 3 billion bets. By comparison, Primedice (the oldest gambling site) just reached their 100 billionth bet a few days ago - over an 8 year period.

The same amounts with $50 max bet result in 9 wins against 11 losses. With -$450 against +$550 = +$100 net increase of bankroll per 20 bets (assuming everyone bets the max bet).

But crucially, the probability of net losses in your bankroll at $50 max bets is much higher, at .49¹⁰ = 0.000797922662976 or a staggering 0.07979% chance of sinking bankroll.

And even more shockingly, this event will happen every 1,253*20 = 25,065 bets!

If your site had 1 bet being placed per minute (because it's small) then you would start noticing losses after just 17.4 days. If it was 1 bet per second like some larger sites, it wouldn't even last half of the day without a net loss.

That's why it's so important to crunch the numbers before you start because if you make your max wager too high, it won't sustain your bankroll! Even a slight decrease in max bet will lower the probability of bankroll net losses!

Almost all games have a less than 50% chance win rate or else their bankroll would keep sliding into a net loss. And the games that do have >50% chance options have less than x2 odds so it works out.

Just some bankroll management 101 for casino owners


I also recommend that for brand new casinos, that you manually approve ALL withdrawals exiting your site. That way you have the chance to see if anyone is abusing some exploits before they can make off with your bankroll. Of course, you can gradually automate smaller withdrawals (up to a certain amount) as your systems become more and more secure.


Why don't you just disable the betting buttons in your case though, so you don't have to be on other people's mercy not to play (and use the exploit against you)?

100 bits

3000 bits

How much is a bit?  

[Haunebu]

Checked your site out and loved the clean design of your site, but the performance definitely needs improvement. Certain sections took a lot of time to load despite the fact that my internet speed is around 300 Mbps.

Also, the help or FAQ section needs to answer additional queries such as minimum deposit, minimum withdrawal, house edge etc.

Liked the quick registration process which isn't exactly unique, but helpful nevertheless. Also, you should have done more research regarding max bets etc as some of the posters above mentioned op.

[Stedsm]

--snip--

100 bits

3000 bits

How much is a bit?  

1 Bit = 100 Satoshis
So in this case, 100 Bits being the max bet was worth 10k Satoshis (BTC0.0001) bet and 3k Bits was his website's entire bankroll = 3,00,000 Satoshis (BTC0.003)
I was amazed to see how a person can promote his website without complete details about his bonus promo (didn't tell in OP that it was a one-time-use code) and then came the bankroll size which was a joke. He must have told us that he is "testing" his site's vulnerabilities and exploits before launching fully or who knows if he's got that 3k bits only in the website's bankroll! 

[Doell]

welcome I'm glad with your honesty regarding the 3mbtc bankroll and happy also with the new gambling website but 3 mbtc bankroll will not be able to compete with other gambling websites ,the maximum bet is also very small ! I used to often see sites without registration that could directly play using a URL ID code like that not something new for me but hearing that 3 mbtc bankroll is a new thing for me ! how can gamblers trust and playing on your site with that bankroll

[nakamura12]

welcome I'm glad with your honesty regarding the 3mbtc bankroll and happy also with the new gambling website but 3 mbtc bankroll will not be able to compete with other gambling websites ,the maximum bet is also very small ! I used to often see sites without registration that could directly play using a URL ID code like that not something new for me but hearing that 3 mbtc bankroll is a new thing for me ! how can gamblers trust and playing on your site with that bankroll

Stedsm may be right that op is only testing the site or it could be the truth about the bankroll. Op doesn't have a choice but to look for investors but the problem is if op can attract investors or not. I think it may work if op will run a fundraising and have own token or coin for the site use.

[hello_good_sir]

Perhaps put this project on hold for the moment?

Doesn't look the best on your brand if you put out an unfinished product that can't even be used properly.

Also, I'd highly suggest that you start with a higher bankroll - 100 bit max bet is a joke, this is the base bet for a lot of players.

[dustboy]

The bankroll was around 3000 bits, I've lost most of it  , there is a vulnerability, the max bet is just 100 bits, but the people hacked it to bet more.

Based on the bet history, most bets that are higher than 100 bits were lost bets. I did not check all pages of the bets history but I can see some 10,000 bits losing bets. Shouldn't you make some profit from those 10,000 bits losing bets? That's even 3x bigger than your bankroll. Coming up to the word "hacked", is it appropriate to accuse player hack your site while there is no rules on your site about the max bet? You allow the bets and there are losing bets too, how can it be called by hacked?