Frequently Asked Questions


What is bitcoin gambling?

Bitcoin gambling is a general term for any type of gambling wherein bets are placed in units of bitcoins as opposed to a fiat currency or any other asset.

How to play?

Place a bet. Watch the multiplier increase from 1x upwards! Cash out any time to get your bet multiplied by that multiplier. But be careful because the game can bust at any time, and you'll get nothing!

What is a bit?

A bit is a millionth of a bitcoin or 100 satoshis. At the time of this writing, a single bit is worth roughly $0.006 USD. You are able to deposit and withdraw bits at any time by going to your account page.

How can I get free bits?

Every hour you can claim 2 free bits on your account page. We do this so that you may test and enjoy the game without any commitment. There are no strings attached, you may withdraw this money if you so please, but we ask you to refrain from abusing this feature. If we caught you with multiple accounts, your accounts might be banned.


How do I deposit bits?

You will need to transfer bitcoins to the deposit address on your account page. If you do not have any bitcoins, we can recommend Coinbase if you are in the US (although the registration process is lengthy). Another great option is, which lists traders in your area willing to sell (or buy) bitcoins. You can also search online to see if there are any bitcoin ATMs near you. And remember, you can withdraw directly to the bitcoin address on your account page!

How long is the deposit address valid?

It is permanently attached to your account. You can save it, or use it for automatic funding, or whatever else you like. All payments to this address will be automatically credited to your account.

How long do deposits take to be credited?

We instantly credit accounts upon a single confirmation, which on average is approximately 10 minutes from the time of the transaction.

How do I withdraw bits?

On your account page, you can transfer bits to any bitcoin address you want.

Usually this process will take less than two hours, but may take up to 24 hours, depending on the time of day and other circumstances.

We remove 100 bits (about 0.6 USD) from any withdrawal amount to cover mining fees. We charge this amount regardless of the actual mining fees attached to the transaction, which may be more or less than this, depending on the block competition at the time of your withdrawal.

Withdrawals must be in increments of 1 bit (100 satoshis), with a minimum withdrawal of 200 bits (of which 100 bits goes towards the mining fee). As required, we will chip in our own money to help expedite confirmation time, such that we typically pay 200 bits in mining fees, despite charging you only 100 bits.

What is gross profit?

Gross profit refers to the sum of the profit from each game you've played without considering your loses.


What happens if I disconnect from the game?

Upon detecting that you have disconnected we cash you out (assuming the game is still in progress). Regardless of whether your client is connected or not, the auto cash-out feature will work as expected (it happens on the server), and we highly recommend you use it if internet reliability or performance is a concern.

How high can the game go?

There's no real limit! However, if during a game we ever are facing a net loss of 1% of the bankroll or greater, the server will automatically cash out all players still in the game, forcing them to enjoy an early win and a sizeable profit. You can see in game what the current max win is (in the bottom right of the chart)

What is the most I can bet?

The bet limit is displayed on the graph.


Is the game fair?

Absolutely! And we can prove it.

The principle of our provably fair system remains the same.

Starting with a secret we generated a chain of 10,000,000 SHA256 hashes. Each element is the hash of the lowercase, hexadecimal string representation of the previous hash. The hash of the chain's last element is daf9a5126ae5841d9134cb30f7702c5ff4c19b3204f8b3b0e91a2c61e4896e1a

Every game maps to a hash in the chain: The 10,000,000th element of the chain is the hash of game #1 and the first element in the chain is the hash of game #10,000,000. To verify that a hash belongs to a game #n, simply hash it n times and compare the result with the terminating hash.

To calculate a game's result from its hash:

const crypto = require("crypto")
function gameResult(seed, salt) {
const nBits = 52 // number of most significant bits to use

// 1. HMAC_SHA256(key=salt, message=seed)
const hmac = crypto.createHmac("sha256", salt)
seed = hmac.digest("hex")

// 2. r = 52 most significant bits
seed = seed.slice(0, nBits/4)
const r = parseInt(seed, 16)

// 3. X = r / 2^52
let X = r / Math.pow(2, nBits) // uniformly distributed in [0; 1)

// 4. X = 98 / (1-X)
X = 98 / (1 - X)

// 5. return max(trunc(X), 100)
const result = Math.floor(X)
return Math.max(1, result / 100)

Before being used to calculate the corresponding result, each game hash is salted with the lowercase, hexadecimal string representation of the hash of bitcoin block 547813. This block has not been mined yet, proving that we have not deliberately picked a chain that is unfavorable for players.

What happens when the server forces people to cash out?

Under some circumstances the server will force people to cash out. The most common reason is that the game multiplier has gotten so large that we are risking too much of our bankroll (1 % or more). Another possible reason is unexpected server problems.

What other gambling places do you recommend?

A couple quick pointers: the lower the house edge the more variance you will experience which means a longer, more exciting gaming session. Bitcoin Casinos generally offer better odds, less fees and faster deposits and withdrawals than fiat based casinos. Be extremely skeptical of generous reward programs, bonuses (e.g. deposit bonuses), affiliate programs and the likes. The money comes from somewhere: you.

Do you have gambling addiction?

Gambling addiction, also known as compulsive gambling, is a type of impulse-control disorder. Compulsive gamblers can’t control the impulse to gamble, even when they know their gambling is hurting themselves or their loved ones. Gambling is all they can think about and all they want to do, no matter the consequences. Compulsive gamblers keep gambling whether they’re up or down, broke or flush, happy or depressed. Even when they know the odds are against them, even when they can’t afford to lose, people with a gambling addiction can’t “stay off the bet.”

Gamblers can have a problem, however, without being totally out of control. Problem gambling is any gambling behavior that disrupts your life. If you’re preoccupied with gambling, spending more and more time and money on it, chasing losses, or gambling despite serious consequences, you have a gambling problem.

If you think you have this problem please visit one of these sites to get assistance:

Self Help: