How to Play Bitcoin Dice: Rules, Payouts and Worked Examples

To play Bitcoin dice you set a stake, pick a target number between 0 and 100, and choose whether the next roll must land over or under it. The narrower your winning range, the higher the multiplier. Every payout follows one formula, multiplier = RTP divided by win chance, so at a 99% RTP a 25% chance pays 99 / 25 = 3.96x and a 50% chance pays 1.98x.

This page walks through a first session step by step, shows how the controls on a typical dice screen work, and puts the maths into real numbers in BTC and USDT, including what a few hundred automatic rolls cost on average and how far results swing around that average.

Your first roll in six steps

1. Hold some crypto first. Buy BTC, USDT or another supported coin on an exchange and move it to your own wallet. Our crypto basics page covers buying, networks and fees.
2. Pick a casino that runs its own dice game. In-house dice (Stake Dice or BetFury Dice, for example) shows its RTP and offers seed controls. Then open the terms and find the list of blocked countries; if yours is on it, stop there.
3. Deposit. Copy the address the cashier gives for your coin, double-check the network, since a transfer on a chain the casino does not support may never arrive, try a small amount on the first transfer, and let the blockchain confirm it.
4. Set your stake. Type an amount or use the half and double buttons. A useful rule of thumb: your balance should cover several hundred base bets.
5. Set target and direction. Drag the slider or type a win chance or multiplier; the other two values update together. Then pick roll over or roll under.
6. Roll. The result appears at once. A winning bet returns stake times multiplier; a losing bet is gone.

Before step 6 it is worth opening the fairness panel and replacing the default client seed with your own. Our provably fair dice guide shows how to check any roll afterwards.

Move the threshold. Read the maths.

A teaching roll space of 10,000 whole numbers, 0 to 9,999. Real sites define their own range and boundaries, so read the game's info panel. This is a calculator, not a game.

Bet direction Roll underRoll over

Threshold 1 to 9,998. The threshold itself loses both ways.

House edge, % Stake states 1%. Check your site's figure.

02,5005,0007,5009,999

Total return if you win

2.0000×

Winning outcomes

4,950

of 10,000 (0 to 4,949)

Win chance

p =

0.4950

Multiplier

(1 − edge) ÷ p =

2.0000

×

Net profit on a 1-unit win

1.0000

units

Average return per unit staked

p × multiplier =

0.9900

Whatever threshold you pick, the average return stays at 1 minus the edge. Betting systems change the size and order of your bets, never that number.

Reading the dice screen

On Stake the possible rolls go from 0.00 up to 100.00. The operator’s Dice guide on stake.com explains that dragging the slider only reaches 49.5x, and that anything higher, as far as 9,900x, has to be entered in the payout field by hand; the lowest payout is 1.0102x at a 98% chance.

Roll over or roll under: one game, two directions

Older dice sites called the two directions “Roll Hi” and “Roll Lo”. They are mirror images. Rolling under 30 and rolling over 70 both give a 30% win chance and both pay the same multiplier. Switching direction changes which numbers win, never the price of the bet. Superstitions about one side being “luckier” have no basis: each roll is drawn fresh, and the previous roll has no influence on the next one.

Some games add range bets, such as winning when the roll lands between two numbers or outside a band. The maths is identical: work out how wide the winning zone is, and that width is your win chance.

The formula behind every payout

A fair game with no house edge would pay 100 divided by the win chance. Casinos replace the 100 with their RTP. That is the entire house edge, and it is the same at every target. The table below applies the published RTP of two in-house casino dice games and one provider game, which many casinos license, to common win chances:

Stake states a 99% RTP on its Dice page. BetFury’s dice screen shows an RTP of 99.02% and a 1.9804x multiplier at 50%. Spribe, a game studio, lists its Dice at 97% RTP. A quick sanity check works at any site: look at the 50% multiplier. Multiply it by 50 and you have the RTP in percent.

Worked examples in BTC and USDT

Example 1: 25 USDT on a 25% chance

At Stake’s 99% RTP the multiplier is 3.96x. A win returns 25 x 3.96 = 99 USDT, a profit of 74 USDT. You win one roll in four on average, so the expected return is 0.25 x 99 = 24.75 USDT, an average cost of 0.25 USDT per roll, exactly 1% of the stake.

Example 2: 0.0005 BTC on an 80% chance

Roll under 80.00 pays 99 / 80 = 1.2375x. A win returns 0.00061875 BTC, a profit of 0.00011875 BTC. Four rolls in five win on average, but the fifth wipes out more than four wins’ worth of profit. The expected cost is again 1% of the stake: 0.000005 BTC per roll.

Example 3: the same 50% bet at two casinos

Stake 10 USDT on a 50% chance. At a 99% RTP a win pays 19.80 USDT; at 97% it pays 19.40 USDT. Over 1,000 such rolls (10,000 USDT turned over), the expected cost is 100 USDT at the first site and 300 USDT at the second. The roll results could be identical; only the payout differs.

Example 4: a long shot in satoshis

Set 0.00002 BTC (2,000 satoshis) on a 2% chance, roll under 2.00. At 49.5x a hit returns 0.00099 BTC. The catch is the wait: the chance of 50 rolls in a row without a single hit is 0.98 to the power 50, about 36%. Over those 50 misses you would have spent 0.001 BTC, slightly more than one win pays back. Long shots need a balance sized for the dry spells, not for the jackpot.

What a session costs, and how far it swings

The expected loss is predictable. The path is not. We calculated the spread for 1,000 rolls of 1 USDT each at Stake’s 1% edge, using the binomial formulas for each win chance:

The cost is the same 10 USDT in all three rows. What changes is the noise around it. At a 90% chance results hug the expected loss; at 10%, one standard deviation either side of the average means finishing roughly 84 USDT up or 104 USDT down after the same number of rolls. Even at 49.5% the edge is small enough to hide behind luck for a while: after 500 rolls at 2x, the exact binomial probability of being ahead is about 39%, and about 3.5% of runs end exactly level. Run long enough, though, and the 1% always shows up. Our dice strategy page simulates what betting systems do to these numbers.

Auto-bet: programming a run of rolls

Every major dice game has an auto mode. Stake’s version, for example, lets you set:

• the base bet and the number of rolls;
• what happens to the stake after a win (reset or increase by a percentage);
• what happens after a loss (reset or increase by a percentage);
• stop on profit, which ends the run once you are up by a set amount;
• stop on loss, which ends it once you are down by a set amount.

Stake also offers an instant-bet setting and hotkeys, and BetFury’s dice screen has a separate Strategies tab next to Manual and Auto. These tools make it easy to place thousands of rolls in a short sitting. Because the expected cost scales with total turnover, that speed is the main way dice gets expensive. A sensible use of auto-bet is the opposite of chasing: fixed stake, fixed number of rolls, stop on loss set to the amount you budgeted for the session.

How crypto dice differs from dice with real cubes

A pair of physical dice produces totals from 2 to 12, and 7 is six times more likely than 2. Crypto dice has nothing in common with that distribution. It draws a single number on a flat scale where every value is equally likely, and the only decisions are size of stake and size of winning zone. Table games with real dice have fixed bets with set odds; the craps guide and the sic bo rules cover those two.

Dice itself is one of the oldest gaming tools. Players threw knucklebones and cubes long before casinos existed, and the online number-roll version took off with Bitcoin because tiny stakes in satoshis made rapid small bets practical.

Old dice-site claims that no longer hold

• “No registration, fully anonymous.” Today’s licensed crypto casinos run account sign-up and can request identity documents under their anti-money-laundering procedures, often before a large withdrawal.
• “No country restrictions.” Every operator publishes a restricted list. Stake, BC.Game and FortuneJack, for example, all turn away US and UK residents.
• “No fees.” The casino may not charge for a deposit, but the blockchain does. Network fees and the withdrawal fee set by the casino vary by coin and network.
• “Instant payouts.” Winnings land in your casino balance instantly. Getting them to your wallet depends on the withdrawal queue, any checks, and network confirmations.
• Faucets. Free-coin faucets used to fund early dice play. What exists now, from demo modes to rakeback, is on our free Bitcoin dice page.

Where to try it

We review the dice games at Stake, BC.Game and BetFury in detail, including licences, limits and withdrawal rules. Dice is quick and repetitive, so set a session budget before the first roll and use the casino’s deposit limits; our safer gambling page lists free support services. Players must be 18 or older, and older where local law says so.

Questions new dice players ask

What does the multiplier mean in Bitcoin dice?

It is your total return on a win, stake included. A 2x multiplier on 0.001 BTC returns 0.002 BTC, so your profit is 0.001 BTC. The multiplier equals the game’s RTP divided by your win chance.

Is it better to roll over or roll under?

Neither. Rolling under 30 and rolling over 70 give the same 30% chance and the same multiplier. Direction only decides which numbers win.

What is the best win chance to choose?

Every win chance carries the same house edge, so none is cheaper. High chances give small, frequent wins and smaller swings; low chances give rare, large wins and much bigger swings. Choose the swing size your budget can handle.

How much does the house edge cost per roll?

Multiply your stake by the edge. At Stake’s 1% edge a 10 USDT roll costs 0.10 USDT on average; at a 3% edge it costs 0.30 USDT. Multiply by the number of rolls for a session estimate.

Can I play Bitcoin dice with USDT or other coins?

Yes. The large dice casinos accept several coins, including stablecoins such as USDT, and the game works the same way whatever coin you stake. Check which networks the cashier supports before sending funds.

Does auto-bet improve my chances?

No. Auto-bet only repeats rolls according to your rules. It cannot change the odds of any roll, but stop-on-loss and a fixed number of rolls make it a useful budgeting tool.