Getting Started
All of the best Bitcoin jackpot slots games pay out real Bitcoin to real players, and there are regularly announced wins by the Bitcoin casinos themselves and other players, though the odds are very low that you will win one of these prizes, but wins do happen in the games, and there are both pages documenting the biggest wins on the Bitcoin slots and lists of the best Bitcoin jackpot slots games to play for the chance to win the largest prizes, and you can see our biggest wins page for documented examples or browse our list of the best Bitcoin jackpot slots to find games with the largest current prize pools.
In order to play in any of the Bitcoin casinos, you will first need to have some Bitcoin in your wallet, but most players will purchase Bitcoin through one of the cryptocurrency exchanges, and then transfer the purchased Bitcoin to your desired Bitcoin casino's deposit address. Some Bitcoin casinos also allow players to purchase Bitcoin directly from a credit card within the casino itself.
The legality of Bitcoin casinos varies from country to country, with many in a legal grey area for online gambling such as Bitcoin casinos, and so we are not legally equipped to provide legal advice for your country and its laws, and it is up to you to ensure that playing at these casinos is legal in your country. Many of these casinos, however, are licensed to operate in Curacao, allowing them to take place anywhere in the world, though local laws may still override that license.
Most Bitcoin casinos require players to be of the minimum playing age of 18 years of age (or the age of gambling in your country, if higher), and all of the casinos that we feature on our site are strictly for adult players.
Jackpots & Mechanics
The minimum amount that you can bet in order to win a jackpot varies from game to game, with some slot machines requiring that you make a maximum bet in order to qualify for the jackpot prize, while other slots may allow you to win the jackpot with any betting amount.
A small percentage of every spin of the slot machines in Bitcoin casinos (typically between 1 and 3%) is deposited into the jackpot prize for that machine, which continues to grow until someone wins it and it is reset to its seed value. The most popular type of jackpot is one that is shared between Bitcoin casinos, allowing it to grow to massive prize pools.
The developers of Bitcoin slots games do not typically publish the odds of winning the jackpot prize for each machine, but through sampling some of the winnings from each of the jackpots, the odds of winning are typically between 1 in 50,000 and 1 in several million for most major jackpots, with larger jackpots having lower odds of winning of themselves. Some slots also have thresholds for jackpots to win that are met at a maximum jackpot amount, increasing the odds as the jackpot nears that maximum amount.
With some slot machines you can win the jackpot prize with a small bet on the slot, especially if the jackpot is randomly triggered instead of being triggered by placing a specific bet amount. With other slot machines, however, you will have to place a minimum (or maximum) amount to win the jackpot prize.
Payouts & Withdrawals
The winnings from jackpots at Bitcoin casinos are paid directly to the player's wallet within the casino, either in Bitcoin or the crypto equivalent of Bitcoin. Most reputable Bitcoin casinos will payout jackpots within 24 hours, and possibly directly into your wallet for very large jackpot amounts.
Most Bitcoin casinos pay out jackpots as a lump-sum payment to the players that have won it, which is one of the advantages of playing in a Bitcoin casino over others. This payout structure should be reviewed for each specific Bitcoin casino prior to playing.
In most countries, gambling winnings are taxable. In addition, the winnings from Bitcoin casinos are considered a form of cryptocurrency winnings, thus adding to the complexity of taxation of winnings. In either case, we recommend that you consult a tax professional in your country if you win one of the prizes at a Bitcoin casino.
Fairness & Safety
The best Bitcoin casinos use random number generators that are audited by eCOGRA, iTech Labs, and other similar organizations, or they use a "provably fair" system for slot games. All of the casinos that we feature use one of these systems, and you can see our provably fair guide for details on how to verify outcomes yourself.
The most reliable indicators of the reliability of any online casino are that their licenses are verifiable (such as Curacao or MGA licenses), that they have a documented history with winning jackpots, that their withdrawal requests are positive in forums like Reddit, AskGamblers, and Bitcointalk, and that they have no complaints against them. All of the casinos that we recommend feature under these categories.
A provably fair slot game uses cryptographic seed hashing to allow each player to verify the result of each slot machine spin independently of the casino and both players cannot have manipulated the outcome of that spin. More information about provably fair slots can be found on our provably fair explainer.