Bitcoin Forum

Overview
Bitcoinflips is a Provably Fair coin flip game that allows gamblers to win 200% on their bets. The best part about the game is that, you can instantly withdraw your earnings and deposits reflect on the 2nd confirmation.  

How to play:
1. Choose heads or tails.
2. Enter your bet.
3. Flip the coin.


Referral system
The user friendly site has a strong referral system that will allow you to earn 0.50% from the profit of every winning bet!

Fee:
No deposit fee.
No fee to check fairness of flips.
1% withdrawal fee.

House edge
5%


200% definition:
Your bet + 100% = 200%.

http://bitcoinflips.com

How can you afford to offer a +EV game in the long run? Players would be expected to make a profit, so I don't see why your running it like this. No mention that it's a promotion or anything, so I suspect it might be a scam (though they might be doing what bitcoinbetting.website is doing and making you pay a tx fee before you even know if you won or lost.)

site is real simple. There is only a 1% withdrawal fee, no deposit fee. What do you mean by +EV?

If you say "win 200%", I expect to get my bet back, plus 200% profit. This is not the case, it's a simple double or nothing game (I win exactly what I have wagered, hence 100%).
You should adjust your advertising there to avoid misunderstandings, because I can guarantee those will happen.

Adjusted.

This is not as same as bitcoinbetting because it is not based on blockchain which mean we dont need to pay skme fee before we know the result though. But to be precise what you are saying probably true because there is no house edge which mean OP will have a chance to scam us though

For OP is there any house edge there to get 200% payout?

House edge has been stated as 5%. No fee needed in order to check the seed. withdrawal is 1%.

This is kinda broken.
There are 4998 possible outcomes for a tail win and only 4649 for a head. Playing on head hence increases your house edge.

That's been left there for gamblers to read and see it.

Oh, 1% withdraw fee. That makes a lot more sense, and I believe no longer +EV. +EV means a positive expected value, and in my post, I was talking about the player having a positive expected value (expected to profit in the long run). It's kinda dumb that someone operation a gambling site doesn't know what EV is.

5% edge is overkill and won't get you many players - other sites like BitSler, Crypto-Games, PD have a 1% edge. Also, you have an inbalance between the chances of both flips (like Lutpin mentioned.)

Thanks for the clarification.  I'll let the programmer know about it.

Game looks simple and clear, but when i play in test mode balance didn't change even one time.. after few games come out this message: "Things broke at our end, try another time."

I hope that in real game everything is ok? ;)

I'll forward the message. Thank you.

better games around there ,not challenging atall ,sorry

k.

what is min and max bet? sorry if it was answered already

how does the house edge works if the pay out is 100% of the bet amount? isn't it like zero house edge or there is something i missed?

Hello - can you explain your proof please?

I think this is a really good idea, but between 5% house edge and Provability fair I think it will drive some people away. I would focus on making these better for the player and you could probably increase popularity with your website by doing so. Making it transparent that the player can see its not rigged and lowering house edge and making the gui look nice could be good points in succeeding with your website. Good luck.

So this game is very similar to Dice in concept. The only difference is that you can't set custom "win range".
Additionally, why anyone would want to play a game where total 6% of your win goes to the House? These fees are overkill.

5% house edge? This house edge really kills people though, more over withdrawal fee is 1% , dont you think that is too much for such withdrawal fee?
the highest withdrawal fee that i know for instant withdrawal is 0.001 and then you charge here 1%, that means if 1 btc withdrawal, this will be 0.01 btc? Too high for sure, dont even think that it will attract many people to play here

Just checked the flip history and I'm a bit shocked/surprised to see many 100.000 bets. I see other bets are only around 0.0001-0.01, those 100.000 makes me think that they are 100btc bets each. Is it true that those bets are real 100btc bets or they were just like a testing bets or it is only a visual bug?
I cant believe if there is someone make so huge bet on a new site with so high house edge and withdrawal fee.

I have just checked the site. The script is good. The design is also amazing. The way you use colors in your concept is very nice. I find it very interesting and attractive. Overall, your site looks simple, tidy but very good-looking. However, using the coinflip is not a good way to run a gambling site because it takes a lot of time to finish flipping and most of the players would rather play hi-lo dice. Try to make the flipping perform faster.

It's not 100BTC. You can only bet in mBTC. Also, you have to remember that when you join the website they'll give you a test user account on which you can bet 100mBTC for free as many times as you wish, but the money is only virtual - it cannot be exchanged in any way because it's just a test. The website looks really cool and fast, I think it's got a pretty big potential.

I tested sites with free money, and after few minutes i decided not to deposit here.

https://i.imgur.com/GlKuSYS.png

I think this is very bad way to promote your site. All rolls are bet on tail, and on head i actually had few green hits.

Those were test bets when the site was being built. It seems like a user named blah already won and withdrew his earnings with profit.

You should choose the right coin then, its provably fair.

correct me if i am wrong but this is not "Coin Flip" because flipping a coin means you should only have two results : heads or tails. what i see is a number between 0 and since i have seen 4 digits i am guessing 10000(9999) !

in other words what the hell is the difference between this (5% house edge) and dice (<=1% house edge)?

lol the difference is 4%

how work your provably fair?
I don't uderstand...

That's not the issue, heh.

I tried playing your game, and rolled on tails (which by the way offers better odds than heads according to your provably fair box). All of the winning generated numbers were counted as losses. All of them. Only on heads was I able to win. Close the site for maintenance and fix your game, otherwise you're opening a literal scam.

Anyone can test it out - flip a bunch of times on tails and then check the "flip history" to see the roll numbers.

I tested the game either and I think there is a HUGE problem. When you choose the tails it is impossible to win.

Design is good but you should check the algorithm I think.

The house edge is 5% though so you might have lower chance to win it but to get those red streaks is really possible, sometimes dice site will also have this thing too. But what is really matter is about the roll number there. Why you still lose when you rolled on number 700? What is the different between 7000 and 700 outcome? If this is dice site you can already with that outcome if it is 2x odds

How can 2 people talking the same thing here? About being lose when they choose head and tails, one said when he choose tails he keep on losing and the other way around to others. That means this site scammed? Because many people lose it here no matter what you choosing, in the end you will just lose

Yes, that may the reason. They may be changing the results based what people are betting means it is not a fully probably fair game. It is better to avoid this site otherwise players will be losing always money on this site. Looks like promoter already got a red warning on his account.

i find two big problems with this game:

1) this is not coin flip since i am not really doing a coin flip with heads or tails no matter what the site calls them it is choosing a random number in a very huge range.

2) since it is not coin flip with only heads or tails and it is more like a dice game it is too slow. i have to wait for the result!

I've just tried to make around 10 bets on tails and all were lost bets. Surprisingly the lost bets had various results numbers. So no matter what the outcome numbers whether high or low then players will always lose if they bet on tails.

the surprise is because the rules of the game are not clear and the owner is giving a wrong name to a wrong game. this is not a coin flip but instead a dice game with a fixed multiplier and a very high house edge (5 times of other places) and the reason why people are losing is because they have to get a number above 9900 i think among 10000 numbers! and that is only if there is no bug in the system.

I should choose right coin? Is that so? Did you even bother to look at numbers i rolled?

Let me quote you your rules:


Lets see...19 tail plays and 10/19 should be win because rolled numbers are between 4900 and 9898.
Explain me please why all bets are red?


Go spam your bitcoinag signature off topic post somewhere else.

What do you mean? I saw that btcevo is clearly see about their result though, just like you said between 250-4899 and it is head and 4900-9898 is tail so why he keep on losing when he get those number 700 and 7000? Does not make sense right? Mind to explain this?

What in the world are you talking about? BTCevo is stating that "red streaks is really possible" and has no idea what's happening in marlboroza's screenshots. In fact, I don't even know what BTCevo is saying with the sentence, "If this is dice site you can already with that outcome if it is 2x odds."

I've also already encountered this problem, where playing on tails is literally unwinnable. Regardless of your roll number, you lose on tails. Every single roll number ends in a loss. This is a scam. Is this clear, or do I have to dumb it down even further?

This is a scam. Watch out guys!

I just agree with btcevo about red streak is possible though, sometimes in dice also we have the same problem but I dont know about this site or similar to this sote about coinflip because saw that everyone always complaining that they cant even win when they keep on placing on the same bet

In all gambling sites, indeed red streak is very possible but in this case you do not understand the real issue.
And certainly, you will always agree with BTCevo as you are him. Mind to explain something HERE (https://bitcointalk.org/index.php?topic=1206112.msg16990068#msg16990068)