Dice game: win chance, multiplier and how roll over and roll under work
Crypto dice has no cubes. The game draws a number on a fixed scale, and you bet that it lands under or over a line you set yourself. Where you put the line fixes both the win chance and the multiplier.
How to play dice
- Choose a direction: roll under or roll over.
- Move the slider to set the line. The game shows the win chance and the multiplier for that position as you move it.
- Set the stake and roll. One number is drawn on the scale from 0 to 100.
- If the number falls on your side of the line, you are paid the stake times the multiplier. If it falls on the other side, the stake is gone.
Dice odds: win chance and multiplier side by side
The multiplier is the RTP divided by the win chance. A wider winning zone means a smaller multiplier, and a narrow zone means a large one. The table uses an RTP of 97.0% as an example and shows where the line sits in each direction. The dice calculator does this for any chance or any multiplier you type.
| Win chance | Multiplier | Roll under | Roll over |
|---|---|---|---|
| 2% | 48.50x | 2.00 | 98.00 |
| 10% | 9.70x | 10.00 | 90.00 |
| 25% | 3.88x | 25.00 | 75.00 |
| 50% | 1.94x | 50.00 | 50.00 |
| 75% | 1.29x | 75.00 | 25.00 |
| 95% | 1.02x | 95.00 | 5.00 |
With a win chance of 50% the multiplier is 1.94x at 97.0%. With no house edge it would be 2.00x, and the difference is what the game keeps. A chance of 2% pays 48.50x and a chance of 95% pays 1.02x.
Roll over or roll under, high or low chance: what changes
The direction changes nothing. Roll under at a given chance and roll over at the same chance are mirror images with equal odds. The position of the line changes how the results are spread. A high chance gives long runs of small wins, broken by a loss that takes many of them back. A low chance gives long runs of losses and a rare large win. The average cost is the same at every position: 3 per 100 staked at 97.0%. Doubling the stake after each loss does not remove it, as does Martingale work on crash games? shows with numbers. For a session of many rolls, the expected loss calculator gives the total. If you like the bet better as a multiplier than as a chance, Limbo is the same wager written the other way round.
Where to play dice: casinos in our data and the RTP of each title
All casinosOur data holds 24 different dice titles from 7 casino lobbies. An RTP is confirmed for 8 of them, between 96.0% and 98.05%. Per 100 staked that is an average cost from 1.95 to 4. Some titles in the list are slider dice as described here, and others show cubes on screen and have bets of their own. What RTP means in crash games covers the percentage itself, and the casino list with every lobby leads to the titles one by one.
Drakaris
Glorion
DragonSlots
Ragnaro
Alawin
Golisimo
WestaceIs online dice fair? How a roll can be verified
Where a dice title is provably fair, the method is easy to follow. A roll is computed from a server seed, a client seed that you may change, and a nonce that counts your bets. The casino shows the hash of its seed before you bet and the seed itself once you ask for a new one.
With the three values in hand you can recompute a roll in the provably fair verifier. A whole history of rolls can be pasted into the bulk bet verifier and checked in one pass. Titles without seeds cannot be checked this way, and the rules of the game say which kind you have in front of you.
Dice demo: test the slider with play money
Of the 24 dice titles we read, 24 carry a demo flag. In a demo you can move the line from one end to the other and watch how the multiplier answers. It also shows what a run of losses at a low chance looks like, at no cost.
Dice calculator and the bulk verifier
Questions about the dice game
Is roll over better than roll under in dice?
Neither is better. At the same win chance both directions have the same multiplier and the same cost.
What win chance should I set in dice?
The chance does not change the average cost. A high chance wins often and pays little, a low chance wins seldom and pays more.
What is the house edge in crypto dice?
It is the share of each stake the game keeps on average. For the dice titles in our data with a confirmed RTP it comes to between 1.95 and 4 per 100 staked.
Can a dice roll be changed after I bet?
In a provably fair title a change would show. The server seed is fixed by its hash before the bet, and your client seed is part of the result.
Does a dice strategy beat the game?
No. A staking plan moves wins and losses around inside a session. The cost per unit staked stays the house edge.
